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Many people have argued that since the thunderbolt has not been updated with gingerbread that it will die out and be worthless. I'm here to tell you that is not the case at all.
Those with the bolt will tell you that their main problem is the battery life. This is exactly right but I have setup my phone that allows my phone to last for days without a charge. Also this does not require you to root your phone, so this will work for everyone and silence all the retarded people who keep posting that its dead. The two biggest factors is of course 4G and the display that eat the battery most.
Make no mistake about it tho, HTC implementations along with the hardware on this baby still takes the cake for flagship of Verizon.Don't be fooled by the dual core hardware, good in theory but let's face it phones aren't their yet, apps don't need two cores but more RAM would be nice.
Read this if you want your phone to live. I have reached 60+ hours unplugged, I am an IT network manager, I know stuff so leh dew it.
1. Get the extended battery. No matter what type of Android phone you have you are going to need it, especially without gingerbread. This is 4GLTE inside a laptop, do those last more than a few hours? ill answer for you, NO.
2. Disable what you don't use. This is why widgets were made to disable data, WiFi, Bluetooth, GPS, etc. when not in use. Get a new brightness widget by curvefish set it to 25% and as well as turn off the animations if you really want more improvement. Disable always-on mobile data, as well as roaming, and manage your email accounts so they sync manually. As far as location goes just use Google services, GPS standalone is a drainer.
3. Create setting shortcuts on the home screen. Add accounts and sync so you can disable auto sync and background data. Background data is only used for the market learn to disable it fools. Add a shortcut to running services as well to keep the RAM usage to a minimum.
4. A main issue always discussed is the bloatware app of blockbuster. Make sure you enter the program and disable automatic movie updates. Then go to running services and disable both instances of PVMtpservicestart and PVWmdrmService. You will have to do this every time you REBOOT but not fast boot.
5. For gods sake, don't be a fool any longer! HTC gave you some of the best widgets but use them wisely...just because you have 6 screens doesn't mean use them all. One widget app that will be loved by all is widgetsoid, extremely useful. Even the HTC clock has separate animations that can be disabled if needed.
6. NEVER by any means should you use any type of juice defender or task killer. It does more harm than good even with Android Froyo 2.2 can still manage this. Download apps such as battery indicator tht shows your battery in increments of 1% and doesn't use any resources in the background. Don't be the fool that gets apps cus they are cute and have no use, you are better than that, atleast I'd hope so..
7. Apps that will ultimately benefit you are things like GO SMS Pro ( since the stock messaging constantly lags and freezes), Astro file manager, Androidzip, LTE On and Off in order to make sure your always using your 4G data only. And of course Uninstaller by rhythm software, Poynt one of the best find anything anywhere app and definitely Documents to Go from which I'm typing on now.
8. Sounds and keyboard is up next. Many like to use haptic feedback or sounds when you click things or type. However, use one or the other it may drain a bit of battery but its not a killer. Whatever floats your boat in that one but as far sounds go try and use either sound notifications or vibrate not both at the same time. Disable all LED notifications and allow yourself the satisfaction of being free of the annoying blinking light.
9. Charging the battery. Who would have thought that it would be important, but yea fools it is. The best way is to let your battery drain down to 5%, restart, then go for a full charge. But once that green light shows up you need to unplug it or else the battery gets angry at you and will decrease the power of the charge and ultimately ruin your battery faster.
10. As far as using different themes and wallpapers it honestly doesnt matter just stay away from the live wallpapers. We all know that touching the pond and making it seem like we just threw a rock in the water can be amusing but completely pointless. It has been reported that gingerbread is coming in Q3 of this year either this month or next, but we all know that could be bs.
When all said and done you will love the improvements and the fact that you didn't have to root your phone will put your mind at ease. I just wanted to share my knowledge of this phone to others to show and prove the fact that this phone is capable you just need to be proactive. Android is a perfect OS for smartphones, Linux like qualities, and strong structures that could really last. Any questions or concerns you can always message me. I just hope some one reads this and actually tries what I have successfully configured.
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Well then I regret that 20 mins it took to write
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Save your pennies and buy an extended battery. No question. Bought one two days ago. Never even come close to this on any ROM. Finally I no longer have to carry a charger in my pocket.
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mathers53 said:
Well then I regret that 20 mins it took to write
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Click to expand...
Click to collapse
Don't get me wrong. I appreciate the effort but there are so many threads that say the same thing.
The methods are not new. There are countless videos on YouTube that say this.
In theory if you're on XDA, you know a thing or two about kernels. I can get a full twelve hours on my standard battery with the right kernel with moderate use and nothing turned off.
If people want a phone to last for days, they're being ridiculous. That's why they have home and car chargers.
Sent from Synergized Thunderbolt via the XDA Premium App
tl;dr
But according to other posts, I'm guessing it is about battery life...
As stated before, get the extended OEM 2750, I constantly pull 40+ hours out of it.
Everyone has their own version so your right its just repetition but it seems like others need a reminder. On my stock battery I can get 32 hours outta this phone. For IT guys like me its what I need from a phone like this.
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OP's rant has all been said before (maybe not in one post) and will be said again before the last Thunderbolt user leaves the forum. I guess it needs said every so often so someone doesn't forget, I suppose.
Point 9 is completely wrong. Lithium polymer batteries are nothing like nickel-cadmium batteries, and neither is the charging method. Li-on and Li-po batteries are NEVER trickle charged in an HTC device, or any device for that matter, unless they have been user-modified. It's also completely impossible to over-charge virtually all Li-on batteries because internal circuitry prevents this. An overcharged Li-on presents and extreme explosion hazard. The act over attempting to overcharge one presents an even greater risk of explosion because as the battery reaches capacity the heat generated inside the cells ramps up sharply. Some charge techniques actually use this sudden ramp up in temperature to determine a fully charged state, that's how precise it can be. But HTC devices, and cell phones in general, do not use this technique. Instead, they take advantage of another characteristic of the battery. As the battery charges, it's voltage output and resistance increase. At the fully charged point, the resistance increases sharply and this tends to be less dependent on cell temperature which makes this method more reliable. Upon reaching this point, charge current is shut off, not reduced. Charge is allowed to bleed off through discharge down to 90-95% before charge current is again applied. The only thing that really reduces the life of a battery, defined as reducing it's number of charge cycles, is storing the battery with a full or empty charge. A Li-on battery can be stored for very lengthy periods with roughly a third of a charge though.
I've jus liked the xda forums a lot cus it seemed everyone would be mature n want ideas to keep flowing. Jus tryin to help, a phone like this can't be fixed in one paragraph I thought we all knew that.
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I think it's good to know what others do to save battery life, especially on this phone. Only problem that I have is having to limit features of the phone. For example, why have such a big beautiful screen when you have to keep it dim to save juice? I'm not a fan of having to cripple your phone to get a days use out of it.
But +1 to the op for the advice. Always interested in other people's setup.
Keep this topic on track everyone, bans will be issued from now on for flaming, off topic garbage posted no exceptions
I bought the TBolt for its ability. Turning off all that ability seems counterproductive to me. So instead of turning everything off, I carry 2 extra batteries when needed. I get 5-6 hours of use out of my phone, flip batteries and continue on. No extended battery fat azz, no being tied to a charger. By the time 1 dies, the other is charged and another just in case. Works out well.
to each their own.
mathers53 said:
Many people have argued that since the thunderbolt has not been updated with gingerbread that it will die out and be worthless. I'm here to tell you that is not the case at all.
Click to expand...
Click to collapse
of course were getting GB, i always new it would be towards the end of summer or fall. who ever said the phone would die out? it took the evo almost a year to get it.
While I certainly applaud and respect the OP's position, I refuse to neuter this phone by turning everything off and making it a dumb phone.
I chose this phone due to the speed and features....turning off that just seems backwards.
Battery technology needs to make a jump, it's the hold up.
These phones should have 3000mah and NOT have a fat, rounded hump on back.
sink it into the phone..
The only thing I turn on and off with a widget is bluetooth.
I don't have the time to toggle between 3/4G, turn GPS on/off, etc.
loonatik78 said:
Point 9 is completely wrong. Lithium polymer batteries are nothing like nickel-cadmium batteries, and neither is the charging method. Li-on and Li-po batteries are NEVER trickle charged in an HTC device, or any device for that matter, unless they have been user-modified. It's also completely impossible to over-charge virtually all Li-on batteries because internal circuitry prevents this. An overcharged Li-on presents and extreme explosion hazard. The act over attempting to overcharge one presents an even greater risk of explosion because as the battery reaches capacity the heat generated inside the cells ramps up sharply. Some charge techniques actually use this sudden ramp up in temperature to determine a fully charged state, that's how precise it can be. But HTC devices, and cell phones in general, do not use this technique. Instead, they take advantage of another characteristic of the battery. As the battery charges, it's voltage output and resistance increase. At the fully charged point, the resistance increases sharply and this tends to be less dependent on cell temperature which makes this method more reliable. Upon reaching this point, charge current is shut off, not reduced. Charge is allowed to bleed off through discharge down to 90-95% before charge current is again applied. The only thing that really reduces the life of a battery, defined as reducing it's number of charge cycles, is storing the battery with a full or empty charge. A Li-on battery can be stored for very lengthy periods with roughly a third of a charge though.
Click to expand...
Click to collapse
+1 on this. He is absolutely correct on this point. Anyone who is into RC anything that uses Lipo's knows this as well.
The reason Toyota does not use Lipo batteries in their Prius' (even through they pack more power in a smaller package) is because of the extreme fire hazard from overheating lipo batteries by trying to "overcharge" them. They are afraid people will try and modify the charging systems to "squeeze" more juice out of them and catch fire.
loonatik78 said:
Point 9 is completely wrong. Lithium polymer batteries are nothing like nickel-cadmium batteries, and neither is the charging method. Li-on and Li-po batteries are NEVER trickle charged in an HTC device, or any device for that matter, unless they have been user-modified. It's also completely impossible to over-charge virtually all Li-on batteries because internal circuitry prevents this. An overcharged Li-on presents and extreme explosion hazard. The act over attempting to overcharge one presents an even greater risk of explosion because as the battery reaches capacity the heat generated inside the cells ramps up sharply. Some charge techniques actually use this sudden ramp up in temperature to determine a fully charged state, that's how precise it can be. But HTC devices, and cell phones in general, do not use this technique. Instead, they take advantage of another characteristic of the battery. As the battery charges, it's voltage output and resistance increase. At the fully charged point, the resistance increases sharply and this tends to be less dependent on cell temperature which makes this method more reliable. Upon reaching this point, charge current is shut off, not reduced. Charge is allowed to bleed off through discharge down to 90-95% before charge current is again applied. The only thing that really reduces the life of a battery, defined as reducing it's number of charge cycles, is storing the battery with a full or empty charge. A Li-on battery can be stored for very lengthy periods with roughly a third of a charge though.
Click to expand...
Click to collapse
Thanks for posting this, you saved me the time of posting something very similar.
U may have helped someone out there by this
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RC anything battery 4 hr. Charge barely 15 min run time.
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fixxxer2008 said:
of course were getting GB, i always new it would be towards the end of summer or fall. who ever said the phone would die out? it took the evo almost a year to get it.
Click to expand...
Click to collapse
More like 6 months since it came out in may, but I don't think is HTC fault more like Verizon most of their all phone don't have gingerbread and sprint got the evo shift, the evo 4G and even the damn echo with gingerbread already
I still don't see how its possible to get 40+ hours even with the extended battery. I'll be lucky to get 24. I do use my phone heavily tho so that may be why idk -.-
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I’m going to try to consolidate a lot of battery information in this thread and prioritize it. This is a WIP.
1) Check your charger first!!!
2) Fix wakelocks
3) Remove bloatware
4) Replace your battery
5) Try a new ROM
The Charger Problem
Using certain chargers causes a wakelock on your phone that prevents it from going into deep sleep. This results in roughly 10% battery attrition, regardless of activity or screen on time. Before you try anything else, you should test each of your chargers and make sure they aren’t causing a wakelock.
Do you have this problem?
Install CPU Spy from the Play Store. Open the app to see how much time your phone spends in each CPU state. If Deep Sleep is a very small percentage, or Deep Sleep doesn’t even appear, you have a problem with your charger. Follow one of the methods below to test each of your chargers.
Charger Test App
I've created an app with the sole function of reporting your charge type and current. See the thread below to download and install the app.
UPDATE: This app is now available on the Play Store for easier installation: https://play.google.com/store/apps/details?id=com.jellisapps.srchargertest
http://forum.xda-developers.com/showthread.php?p=29451951#post29451951
Testing with only CPU Spy:
1) Plug your phone into the charger and turn the screen off. Leave it charging for about 30 seconds. (Don't do this with a fully charged phone, as I don't know how that affects the testing)
2) With the screen still off, unplug the phone from the charger.
3) Open CPU Spy, hit the menu button, and "Reset Timers". Turn the screen off.
4) Let the phone sit idle for a few minutes with the screen off.
5) Turn the phone back on and refresh the timers in CPU Spy (menu button again).
If Deep Sleep doesn’t appear in the list of CPU states, your phone is experiencing a wakelock brought on by the charger. It’s probably spent the majority of time at 192mhz or 384mhz.
To further confirm this, leave your phone unplugged, restart it, leave the screen off for a few minutes, and then check CPU spy again. You should now see it going into Deep Sleep.
It’s rumored that some USB cables can also cause this problem, even if used with a good charger. I have not experienced this with the cables I’ve used.
Testing with Terminal Emulator:
This method will not show the wakelock, but it will show you what charging mode the phone is in. Because I’ve identified the problematic charging mode that creates the wakelock, this method can be used to test your chargers fairly quickly. (Thanks to pj_rage)
If you have Tasker, you can download and import my Tasker profile that will check the charger when it’s connected and toast you with the charger type. It will also pop a notification if the charger will create a wakelock. Profile: https://www.dropbox.com/s/jewrvalkc7agtoz/Charger_Type.prf.xml (hat tip to Note-owner G8351427 for the Tasker idea)
1) Plug your phone into the charger you want to test.
2) Use your favorite terminal emulator (ROM Toolbox has one) to run:
cat /sys/class/power_supply/battery/charging_source
3) Look for your results:
0= No charger connected.
1= USB Normal Charge. There is 5VDC on pins 1&4 and data current is detected on 2&3
2= AC Fast Charge. AC Fast Charge. There is 5VDC on pins 1&4, and pins 2&3 are BRIDGED.
6= AC Regular Charge. This is the charge state that creates the wakelock. There is 5VDC on pins 1&4, and pins 2&3 are OPEN/DISCONNECTED.
Thanks to SR-owner nighthawkmckenzie for additional information on charging states.
Known Workarounds:
If you can't use a proper charger, there are two known workarounds.
1) Restart your phone after charging. This is what I did for a while, until I found one of my chargers that works with the phone.
2) Plug your phone into a "Type 2" charger. If your phone is plugged into a Type 6 charger, it creates the wakelock upon disconnection. But if you plug in a Type 2, even briefly, it clears the wakelock. For example, I would charge my phone overnight on a Type 6 charger (leaving a wakelock), and then just plug it into my car charger (Type 2) for a few seconds on the way to work to eliminate the wakelock.
3) Mod your charger to bridge pins 2&3. Instructions can be found here.
4) Buy one of these adapters. I have not tested this, but Note users say that it increases the charger current for chargers without pins 2&3 bridged. Theoretically, that means it should be recognized as 2 instead of 6. Someone let me know if you try it and verify effectiveness.
5) Turn on your screen before unplugging the phone. Some users report that this works. I've been unable to get it to work for me. Try it with your charger using my testing steps above if you'd like. (This workaround is courtesy of Note-owner ultravorx)
Why This Happens:
Thanks to pj_rage's research and nighthawkmckenzie's help putting the pieces together. As stated above, the Skyrocket and the Note detect if pins 2&3 are bridged or not. It seems that, for chargers to be Apple certified, they must not bridge pins 2&3. These chargers don't cause a big problem for most phones, but they do for ours. It lowers the mA current and causes a wakelock that persists after the charger is unplugged. The wakelock I usually notice is sdio_al, which seems like it's related to I/O on the SD card. Perhaps detecting a cable connected without pins 2&3 bridged, the phone is preparing for data, then fails to terminate the wakelock.
Here is a really good thread by pj_rage with information on chargers and the Note
My phone takes FOREVER to charge!
Not all chargers are created equal. Some of them enable quick charging, while some of them do not. Plug your charger in, open your Terminal Emulator, and run this command:
cat /sys/class/power_supply/battery/batt_current_adc
Divide the result by 10 to determine the mA rate of your charger. If the result (after dividing) is close to 1000, quick charging is enabled. If the result is close to 5000, quick charging does not work with your charger.
Wakelocks That Destroy Your Battery Life
If you're not familiar with wakelocks, they're basically processes that run on your phone that prevent it from going into deep sleep. Deep sleep is the mode your phone should go into when you're not using it so that it can conserve battery. Some wakelocks are intentional, while others can be the result of rogue apps or system processes.
For an excellent and thorough guide to Wakelocks and the Skyrocket, check out this thread started by T.J. Bender.
To effectively find your wakelocks, you'll need BetterBatteryStats. It's free to us XDA users. You can get it in this thread. Read that OP for more information about wakelocks.
AudioOut_1 - Hat tip to T.J. Bender's post in this thread for information on AudioOut_1.
Settings -> Sound
Turn keytone, touch sounds, screen lock sound and vibrate on screen tap off.
sdio_al - This is the wakelock created by your charger, detailed above in this OP.
Clean Out the Bloat
Some of the bloatware and unnecessary apps on our phones can drain battery. Here is a good thread by Earthdog that is stickied in the Themes and Apps forum that tells you what apps are safe to freeze or uninstall. I really recommend you freeze the apps in Titanium Backup and run for a few days before you uninstall. This way you won’t accidentally uninstall something your phone needs to remain stable.
We’re Gonna Need a Bigger Battery
Many Skyrocket owners (myself included) have discovered that the Verizon Galaxy Nexus extended battery works pretty well in the Skyrocket. The Skyrocket’s battery is 1850mAh, while the Nexus extended battery is 2100mAh.
Here’s the thread discussing the battery.
It costs less than $25 at a Verizon store and will add over 10% to your battery capacity. The battery is also made by Samsung and has built in NFC, just like our stock battery.
Some people report filing down the battery so that it will fit in their Skyrocket. I followed the advice of user stevenlong and took the sticker off of the outside of my extended battery. Picture of his battery is here. After this modification, it fits almost perfect. The slight bulge is not noticeable unless you’re looking for it (that’s what she said).
The Stock ROM Sucks
If you’re still unrooted and on stock Gingerbread, I feel sorry for you. What the heck are you doing on this forum if you’re scared to flash a new ROM?
This guide would be way too long if I tried to explain the battery improvements you might see by stepping up to the Stock ICS leak. You’ll probably see even more improvement if you flash one of the many custom ROMs in the Development section.
If you’re dedicated to getting the most out of your phone, spend a weekend reading the ever-loving sh*t out of the stickies in the Development forum. Only after you have read those threads and feel like you have a good understanding, backup your phone and flash a new ROM on it. As long as you’ve backed up properly, you can flash between several ROMs and choose the one that works best for you.
If you have any questions about the ROM you’re trying to flash, ask in the Q&A forum. Don’t start out by asking in the ROM’s threads, unless you’re POSITIVE that the question has not already been answered in the thread or the stickies. You did search first, right?
I can only speak to my own experience, but SKY ICS by seanzscreams has been AMAZING for battery life. I’ve really wanted to try some of the other ROMs, because they look good as well, but SKY ICS has been so good that it’s hard to think of using anything else. Try them all and see which one you like the best. Don't forget to donate a few bucks through the donate button for your favorite ROM's developer!
Good reference guide from entropy
http://forum.xda-developers.com/showthread.php?t=1308030
[REF] Known identified battery drainers
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jivy26 said:
Good reference guide from entropy
http://forum.xda-developers.com/showthread.php?t=1308030
[REF] Known identified battery drainers
Sent from my SGH-I727 using Tapatalk 2
Click to expand...
Click to collapse
That guide seems to cover Wifi and BT drain issues with the GS2. I'm not sure how similar our Wifi and BT is to theirs. Our phone hardware is closer to the T-Mobile GS2 hardware than the AT&T.
In my experience, our phone and the AT&T Note have the charger issue. I just tested my wife's AT&T GS2 and it does not have the problem. My problem charger that gives me a wakelock (and is reported as type 6) does not give her a wakelock and is reported as charger type 2.
I'm editing the OP as I discover more and more information and perform various tests today.
I think I've discovered that the wakelock is ALWAYS caused by using an iPhone certified charger (or one that the Skyrocket thinks is iPhone certified). To be certified for iPhone, the charger must include a special circuit that identifies it as such.
I also created a Tasker profile to easily test your charger. The profile reports your charger type when you plug it in and creates a notification if your charger will cause a wakelock.
I would really appreciate if some people can test these theories out. In my experience, chargers that are reported as type 6 ALWAYS create the wakelock. Any reported as 1 or 2 do not.
ALSO: I've always used Stock and Sky ICS. Can someone on an AOSP-based ROM check a known iPhone charger to see if it reports type 2 or 6? This can help us determine if this problem only exists in the Samsung-based ROMs.
Very good info, I checked a couple of my chargers and they were working properly. Thanx
Edit..
I just checked my car charger, bought it at [email protected] when I got my skyrocket. On the attached charging cable it reads 6 in term. Emulator, and if I plug a cable into the USB connection it reads 2.
Jrockttu said:
ALSO: I've always used Stock and Sky ICS. Can someone on an AOSP-based ROM check a known iPhone charger to see if it reports type 2 or 6? This can help us determine if this problem only exists in the Samsung-based ROMs.
Click to expand...
Click to collapse
I am running CM9 nightly 7/7 with Instigatorx kernel, and I just tested the following chargers with the same cable:
Stock Samsung Skyrocket
Stock Motorola RAZR
Stock Palm Pre
Stock 1st gen iPad
All but the iPad report as 2, the iPad reports as 6.
Also, I tried your Tasker profile but it says it can't find /mnt/emmc/chargetype.txt
Tom
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rpr69 said:
I am running CM9 nightly 7/7 with Instigatorx kernel, and I just tested the following chargers with the same cable:
Stock Samsung Skyrocket
Stock Motorola RAZR
Stock Palm Pre
Stock 1st gen iPad
All but the iPad report as 2, the iPad reports as 6.
Also, I tried your Tasker profile but it says it can't find /mnt/emmc/chargetype.txt
Tom
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
Click to expand...
Click to collapse
Thanks for testing.
I also flashed aokp earlier and charger behavior is the same. I wonder if this means it's a hardware problem, not software.
Chargetype.txt should be created in /mnt/sdcard/. I'll have to look as to why it works different for you. You can try changing the path for the read task in the meantime.
No worries, I just manually cat'ted the file. So far I haven't seen the charger wake lock recently on my setup, but I'm still investigating. I am seeing a lot of 'deleted_wake_locks', which may be related to my tasker profile that turns off Wifi and BT during the day.
rpr69 said:
No worries, I just manually cat'ted the file. So far I haven't seen the charger wake lock recently on my setup, but I'm still investigating. I am seeing a lot of 'deleted_wake_locks', which may be related to my tasker profile that turns off Wifi and BT during the day.
Click to expand...
Click to collapse
You're not seeing the wakelock after using your iPad charger? In my experience, plugging in to a type 6 charger immediately eliminates the wakelock, even without restarting the phone. The wakelock seems tied to the last charger you used before unplugging.
Thank you very much for this useful post. I sometimes charge my phone using my usb port on my MacBook at home (it's a work computer--I hate Macs), and I wonder if using that port is causing a wakelock issue for me. I charge it on that and then leave my phone off the charger at night, and when I wake up my battery is usually depleted by 15% minimum by morning (running CM9 nightlies currently).
I'll test it out tonight and report back (if I remember to...which I should...lol).
skrambled said:
Thank you very much for this useful post. I sometimes charge my phone using my usb port on my MacBook at home (it's a work computer--I hate Macs), and I wonder if using that port is causing a wakelock issue for me. I charge it on that and then leave my phone off the charger at night, and when I wake up my battery is usually depleted by 15% minimum by morning (running CM9 nightlies currently).
I'll test it out tonight and report back (if I remember to...which I should...lol).
Click to expand...
Click to collapse
A 15% drain over an 8 hour period of no use seems normal to me if you have accounts syncing. If you had the wakelock, it would be more like 50-80% drain over that same time.
Your MacBook should report charger type 1 (USB charging), but please let me know if it causes the wakelock (using the CPU Spy method).
I've been using an app called Juice Defender, it's a pretty nice app that will turn off your radios while your phone is in standby mode. I can set my phone on my night stand when I go to sleep and leave it for 8 hours and get anywhere between a 7-11% percent drain. There is three levels of the app (free, pro, and ultimate)
sorry I can't link it cause of the 10 post rule
Just my two cents...
NaughtyNinja74 said:
I've been using an app called Juice Defender, it's a pretty nice app that will turn off your radios while your phone is in standby mode. I can set my phone on my night stand when I go to sleep and leave it for 8 hours and get anywhere between a 7-11% percent drain. There is three levels of the app (free, pro, and ultimate)
sorry I can't link it cause of the 10 post rule
Just my two cents...
Click to expand...
Click to collapse
A lot of people use Juice Defender, but the app is very polarizing. Some people claim it's made their battery last forever, while others say it's the same or worse with JD. I used it briefly on my Nexus One and didn't notice a difference. I didn't include it because of the controversy surrounding its effectiveness.
I'll look around and see if anyone has a really good thread explaining its worth and link it in my OP.
My issues with the SR battery have been around the syncing that happens in the background. I finally got my work email down to syncing once and hour and gmail to once every 2 hours. Obviously this varies per person but I think how often the phone sync's is Androids worst enemy. With Juice Defender at least you have somewhat "universal" control over the radio's and when they connect when YOU want them to.
Whether or not you get better battery is in fact subjective to the user.
pctx said:
My issues with the SR battery have been around the syncing that happens in the background. I finally got my work email down to syncing once and hour and gmail to once every 2 hours. Obviously this varies per person but I think how often the phone sync's is Androids worst enemy. With Juice Defender at least you have somewhat "universal" control over the radio's and when they connect when YOU want them to.
Whether or not you get better battery is in fact subjective to the user.
Click to expand...
Click to collapse
As far as I understand push email, you shouldn't see much, if any, battery improvement by delaying gmail because it's pushed, not polled. Increasing polling intervals on Exchange email will help, though.
And you're right, the biggest factor in battery life is how people use their phones. The thing I hope to accomplish with this thread is to eliminate the problems that ruin battery life regardless of how someone uses their Skyrocket.
My charger was recognizing as 2 (AC fast charge) but I switched to OEM just to see and it does indeed seem to be idling much better and charging faster. Go figure.
I do suspect this is partly a software issue, but if using the OEM charger works, it works. Good thread.
Thanks for the good info! I try to monitor my usage as much as possible and once I root my phone it will be a lot more flexible, but some new stuff in here I'm gonna try out as well.
Thank you so much for putting this together. I wrote a couple of scripts in ROM Manager to test all of my chargers, and the two Griffin dual-USB car lighter chargers I have both return a 6... After reading this thread, it's not surprising because Griffin is in bed with Apple, and pins 2 and 3 must be open to receive Apple certification. My bad, but I like the Griffin products, and think they are robust and designed well. I've used them with my iPods all along...
I unplugged my Skyrocket the other day when I went to play golf, and used my Golf Logix GPS app. I had a full charge when I started, but I noticed the charge dropping rapidly as I played, even though I kept turning the screen of constantly. By the end of a full round (18 holes), my phone was down to 14%! I figured out was the golf app and uninstalled it, but afterwards, when I checked in CPU Spy, I found that my phone never slept the whole time, even with the screen off...
Turns out, out must be the charger in my car. It's currently cracked open, awaiting my soldering iron and my 1 year old girl's next nap
Thanks again!
Sent from somewhere in Galaxy SII...
Is Juice Defender worth it? With AOKP and many other custom ROMs you get toggles for data/wifi/brightness; shouldn't manually regulating their on/off state be just as efficient (if not more) than automated control? Or am I missing some features that Juice Defender carries
whosgotlag said:
Is Juice Defender worth it? With AOKP and many other custom ROMs you get toggles for data/wifi/brightness; shouldn't manually regulating their on/off state be just as efficient (if not more) than automated control? Or am I missing some features that Juice Defender carries
Click to expand...
Click to collapse
It's a simplicity thing for me. Yes, I could flash a custom ROM and configure everything manually to max my battery savings. Or, I could root the phone, freeze bloatware, and set JD up so that it handles all that for me. I'd probably have somewhat longer battery life doing it the first way (or significantly longer, depending on the ROM), but my battery life with JD is fine for my purposes, so why mess with flashing a custom ROM, the ever-present brick possibility and resetting the flash counter later when I can just root it and forget it?
No matter which phone you have, an iPhone or a GS3/GS2 or a Xperia device, you always fret over the battery life of your device! (Xperia owners a little more)
Instead of splashing out on expensive battery packs, here is a list of things you can do to get the maximum out of your battery :
1. It’s all about the Apps!
Many of the more than one million apps available to download to smartphones contain programming errors and software bugs that mishandle power control. This means your devices can remain active when they should be sleeping which further leads to unnecessary draining of your battery. Identify these apps! (Other apps like Carat can help you with that) and monitor there use!
Also, there is a good chance that there are apps running in the background of your phone that you think you closed or reappear each time you reboot your device. Fortunately, it’s easy to identify and correct this on the iOS and Android operating systems with a few easy steps. All open apps drain battery, so in this case, the lesser, the merrier!
2. The battery is always better on the cooler side!
Your smartphone most likely uses a Lithium Ion (Li-ion) battery. Be aware that extreme temperatures can negatively impact battery life so whenever possible keep your device in elements between 32 and 95 degrees Fahrenheit. While a frigid phone should reclaim its functionality once it returns to room temperature, an overheated device could permanently ruin your battery. Over the course of a year, prolonged exposure to climates above 95 degrees could reduce a phone capacity by as much as 35 percent.
Remove any protective cover or accessory every time your phone is being charged. When you’re walking around, keep your phone in a ventilated holster or belt clip rather than a sweaty hand or pocket. Over-charging will also contribute to an overheated phone.
3. Always look at the bright side of life! – well the screen actually!
Turn on Auto Brightness! Most phones have an ambient light sensor that adjusts the brightness of the screen based on the light around it (darker in dark places, brighter when there’s more ambient light) to both save battery and make it easier to see. Turn Auto-Brightness on and you’ll save battery because your screen will need to use less power in dark places.
If not, manually adjust your screen brightness according to your needs by accessing it from the settings menu.
4. Stay (dis)connected!
Transmitting data wirelessly takes battery and leaving Bluetooth on to accept incoming data at all times requires even more juice. Turn off Bluetooth except when you’re using it (duh!) to squeeze more juice from your battery.
3G can be a real battery zapper, especially if you’re using it in an area of marginal coverage. If in doubt, your phone probably has a toggle setting where you can set your phone to use only 2G, You will soon see an extension to battery life that way while not really compromising speed or service.
And disabling a 3G connection when not needed is just the start. If you know you’re going to be away from home or a known wireless Internet connection, turn off your Wi-Fi locator. Also, GPS is particularly handy if you find yourself navigating somewhere new, but don’t leave it on all the time if you’re not using it.
5. Zip it!
When in a meeting or a movie, switch your phone into silent mode. Unnecessary notifications will only lead to lesser battery life. Use a basic ringtone! Advanced ringtones can sound better, but the phone will die soon! Also, turning off location services and push-notifications is definitively a step-forward towards saving battery life!
If you discover your smartphone seems to be running out of battery life quicker than ever despite your habits remaining unchanged, it could be worth investing in a spare or new battery. It’s worth noting that aftermarket batteries not made by the original equipment manufacturers (OEMs) are considerably cheaper. They do, however, vary in quality. Some aftermarket batteries can be trusted, but be aware of ‘too good to be true’ prices for smartphone batteries on retailers like eBay. You could end up with junk, or worse, a faulty battery that permanently damage your device. Buy carefully and smartly from trusted retailers to be safe.
Underclock your phone to 800/1000Mhz (while you are travelling) cz SGSII can do most of the stuffs within that speed.
Use Custom kernel like siyah wch has better battery backup than stock
dont set min freq to 100MHz cz 200MHz is much more energy efficient than 100 & has more operationg power !!
Come on man, show some love for Celsius! Besides, it is what most of the world uses and is not seemingly arbitrary (or based on how cold it gets in the average american's basement)!
Anyway, well written guide, may prove useful for the lesser knowledgeable folks out there
Whilst I applaud you for putting this info together, it is not specific to the SGS2. This is SGS2 General. This kind of thread belongs General Discussion or at the very least in Android General (tho probably the former).
For 1. I would recommend using an app such as Go Power Master, as it tracks which apps are running as how much power they are using. Some apps are always running, but use very little power while others can use a lot while it is running.
Also, if this may be applicable:
If, after rooting or more likely that case after flashing a new rom, you often have battery reporting errors (as mentioned above), and re-calibrating the battery along with some steps I will outline for you below will ensure that your battery is getting a full charge, and the battery reporting accuracy is right on. As far as power cycling, I run my Atrix 2 in performance mode all the time, and with a CPU overclock of 1.25GHz and various tweaks, I have about a day an a half to a day and a quarter of full runtime from my battery. This is moderate to heavy usage (calls, emailing, text, gaming, web browsing, etc.) so you should have no problems getting acceptable battery performance after following these steps:
1. Take the case off your device (one of the latter steps involves taking the battery out from the phone while it's plugged in. Make sure your case won't stand in the way.)
2. Install Battery Calibration app from the market
3. Plug in your device to charge while it's on, wait till it gets to a 100%
4. When the charge is 100%, open the BatteryCalibration app and lookup what the charge is in MV while at 100%. Write it down.
My Atrix 2 was showing ~3400MV while at 100%, which is definitely not the maximum capacity.
5. Discharge your device completely until it shuts off.
A good way of doing this quickly is by turning on wifi, and a video player.
6. Without turning on the phone plug it into a wall charger and let it get to 100%
7. When it's at 100%, without unplugging it from the wall charger, take off the battery cover, and take the battery out.
Your phone will "reboot" and show a Missing Battery icon.
8. Without unplugging the phone from the wall charger or turning it on, put the battery back in and wait until the phone recognizes the battery.
9. Your battery should now be recognized by the phone, and showing a charge % significantly lower than 100%.
Mine showed only 5%.
10. Let it sit there charging for 2-3 hours (or more).
My phone wouldn't charge past 10%, but yours might. The numbers don't matter much as the phone is definitely getting additional charge that could have been lost while flashing ROMs, etc.
11. After 2-3 hours (or more), turn the phone on while holding the volume down button and get into CWM.
Do not disconnect it from the charger still!
12. Wipe battery stats in CWM, reboot.
Do not disconnect it from the charger still!
13. When the phone turns on, go into Battery Calibration app again and look up your MV numbers -if you were like me, they should be significantly higher than before. After this whole process I had 4351MV at 100%, comparing to 3400MV before calibration.
Do not disconnect it from the charger still!
14. Before going to sleep - Install Watchdog Task Manager Lite from the market. Go into it's preferences, set CPU threshhold to 20%, check "Include phone processes", check "Monitor phone processes", check "Display all phone processes", set system CPU threshhold to 20% as well.
Do not disconnect it from the charger still!
15. Make sure your wifi and data connections are off. Now finally unplug the phone from the charger.
Go to bed, let your phone sleep too.
16. Success! Next morning check where your battery % is at and if you followed the instructions correctly / got lucky like me, your battery life should be 90% or more.
I went to bed with 98% and woke up to 94%. So, I consider this mission a success.
Sent from my SAMSUNG-SGH-I747 using xda premium
A samsung developer actually said that whiping battery stats doesn't matter at all, it was on the XDA frontpage some time ago
AOKP undercloking
sekhargreen said:
No matter which phone you have, an iPhone or a GS3/GS2 or a Xperia device, you always fret over the battery life of your device! (Xperia owners a little more)
Instead of splashing out on expensive battery packs, here is a list of things you can do to get the maximum out of your battery :
1. It’s all about the Apps!
Many of the more than one million apps available to download to smartphones contain programming errors and software bugs that mishandle power control. This means your devices can remain active when they should be sleeping which further leads to unnecessary draining of your battery. Identify these apps! (Other apps like Carat can help you with that) and monitor there use!
Also, there is a good chance that there are apps running in the background of your phone that you think you closed or reappear each time you reboot your device. Fortunately, it’s easy to identify and correct this on the iOS and Android operating systems with a few easy steps. All open apps drain battery, so in this case, the lesser, the merrier!
2. The battery is always better on the cooler side!
Your smartphone most likely uses a Lithium Ion (Li-ion) battery. Be aware that extreme temperatures can negatively impact battery life so whenever possible keep your device in elements between 32 and 95 degrees Fahrenheit. While a frigid phone should reclaim its functionality once it returns to room temperature, an overheated device could permanently ruin your battery. Over the course of a year, prolonged exposure to climates above 95 degrees could reduce a phone capacity by as much as 35 percent.
Remove any protective cover or accessory every time your phone is being charged. When you’re walking around, keep your phone in a ventilated holster or belt clip rather than a sweaty hand or pocket. Over-charging will also contribute to an overheated phone.
3. Always look at the bright side of life! – well the screen actually!
Turn on Auto Brightness! Most phones have an ambient light sensor that adjusts the brightness of the screen based on the light around it (darker in dark places, brighter when there’s more ambient light) to both save battery and make it easier to see. Turn Auto-Brightness on and you’ll save battery because your screen will need to use less power in dark places.
If not, manually adjust your screen brightness according to your needs by accessing it from the settings menu.
4. Stay (dis)connected!
Transmitting data wirelessly takes battery and leaving Bluetooth on to accept incoming data at all times requires even more juice. Turn off Bluetooth except when you’re using it (duh!) to squeeze more juice from your battery.
3G can be a real battery zapper, especially if you’re using it in an area of marginal coverage. If in doubt, your phone probably has a toggle setting where you can set your phone to use only 2G, You will soon see an extension to battery life that way while not really compromising speed or service.
And disabling a 3G connection when not needed is just the start. If you know you’re going to be away from home or a known wireless Internet connection, turn off your Wi-Fi locator. Also, GPS is particularly handy if you find yourself navigating somewhere new, but don’t leave it on all the time if you’re not using it.
5. Zip it!
When in a meeting or a movie, switch your phone into silent mode. Unnecessary notifications will only lead to lesser battery life. Use a basic ringtone! Advanced ringtones can sound better, but the phone will die soon! Also, turning off location services and push-notifications is definitively a step-forward towards saving battery life!
If you discover your smartphone seems to be running out of battery life quicker than ever despite your habits remaining unchanged, it could be worth investing in a spare or new battery. It’s worth noting that aftermarket batteries not made by the original equipment manufacturers (OEMs) are considerably cheaper. They do, however, vary in quality. Some aftermarket batteries can be trusted, but be aware of ‘too good to be true’ prices for smartphone batteries on retailers like eBay. You could end up with junk, or worse, a faulty battery that permanently damage your device. Buy carefully and smartly from trusted retailers to be safe.
Click to expand...
Click to collapse
Actually I underclock my GS2 to 800Mhz thanks to an AOKP Rom and my battery last one hour or one hour and a half more, which is great when you just have 7/8 hours of battery life normally. It didn't really affect the use of common apps, but of course if you want to play big 3D games, I suggest you to clock it a its original rate (1.2Ghz for the GS2 for example).
---------- Post added at 01:26 PM ---------- Previous post was at 01:21 PM ----------
Neefy said:
A samsung developer actually said that whiping battery stats doesn't matter at all, it was on the XDA frontpage some time ago
Click to expand...
Click to collapse
Yes I think so because this is just statistics, it will not affect the actual battery life of the phone.
Apex_Strider said:
Also, if this may be applicable:
If, after rooting or more likely that case after flashing a new rom, you often have battery reporting errors (as mentioned above), and re-calibrating the battery along with some steps I will outline for you below will ensure that your battery is getting a full charge, and the battery reporting accuracy is right on.
<Snip>
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
This is bump charging and while it does work, it is not good for Li-on batteries. I'll find the link and edit it back in but bump charging will shorten the life of your battery due to inconsistent charge cycles.
Neefy said:
A samsung developer actually said that whiping battery stats doesn't matter at all, it was on the XDA frontpage some time ago
Click to expand...
Click to collapse
This is from my battery guide. OP (or anyone for that matter), feel free to check it out. There is far more information, apps, deep memory management trick,... Link is in my signature.
Batter Calibrator –
<Snip>
**Note that this can be done two other ways. You can boot into CWR or Custom Recovery and go to Advanced Settings and there will be the Wipe Batterystats.bin option. Or you can do it manually by going into /data/system/ and deleting the batterystats.bin in there. Any of the three methods work to get the entirely same result in the end. I just like using the app or manually myself. **
<Snip>
Recently there has been information debunking this process. I will post it below, however I know what it says, but I also know what I've seen/experienced too. Here is the post by Dianne Hackborn, a Google Dev on her G+ account.
Dianne Hackborn - Jan 12, 2012 - Public
Today's myth debunking:
"The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/ directory."
No, it does not.
This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it go away.
Click to expand...
Click to collapse
Click to expand...
Click to collapse
Neefy said:
A samsung developer actually said that whiping battery stats doesn't matter at all, it was on the XDA frontpage some time ago
Click to expand...
Click to collapse
The point of doing so is if you happen to get incorrect battery reporting, which DOES occur in certain capacities. So, in my book as well as many others, it does matter for these situations. If only one developer told you the world was flat, would you believe that also?
Sent from my SAMSUNG-SGH-I747 using xda premium
Thanks for the useful information!
Great information that applies to any phone, thank you.
Sent from my SPH-D710 using xda app-developers app
sekhargreen said:
No matter which phone you have, an iPhone or a GS3/GS2 or a Xperia device, you always fret over the battery life of your device! (Xperia owners a little more)
Instead of splashing out on expensive battery packs, here is a list of things you can do to get the maximum out of your battery...<snip>
Click to expand...
Click to collapse
Apex_Strider said:
Also, if this may be applicable: <snip>
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
Great info/tips from both members above. Thanks button thanked for both!
Fosho bro thanks a lot...simple tips
Sent from my One X using xda app-developers app
Actually I could only save battery on my MEIZU by underclocking & battery saver app.
Thanks for your infos, I'll give some of them a try now (again )
Nice information... thanks for sharing..
You can also buy a better battery for your phone. They normally are cheap too
Sent from my HTC Sensation Z710e using xda app-developers app
I just turn on power saving mode. But I still need to recharge my phone daily, once in two days if I'm lucky. But after reading this topic I will see if I can scratch those pesky powerhungry little demons.
Sent from my GT-I9300 using xda app-developers app
Apex_Strider said:
The point of doing so is if you happen to get incorrect battery reporting, which DOES occur in certain capacities. So, in my book as well as many others, it does matter for these situations. If only one developer told you the world was flat, would you believe that also?
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
Battery stats has nothing to do with battery reporting. And it was an engineer from Google's Android team that debunked the battery stats wives' tale.
So yeah, folks probably should believe a recognized subject matter expert when they clearly and concisely debunk misinformation such as the advice to wipe battery stats.
Also, it bears mentioning that the os clears battery stats upon every reboot, making the advice to do so even more pointless than it already is.
Sent from my Galaxy Nexus using Tapatalk 2
Great tips...definately learned something! Much appreciated!!
Sent from my SGH-T989 using xda app-developers app
I am curious about the battery in the one x, and especially the habits of consumption.
I have been around the block with android development. I had a captivate before this, and managed to get great battery life out of that! That was much more simple however. Flash a rom, cycle the power, cycle, cycle, cycle. Then you're good to go.
I feel like the way that the one x deals with the battery is different, more advanced. Some bootloader level software that is untouched, like the hardware keys and whatnot.
My battery has been hit and miss to say the LEAST. I use BBS to take care of wakelocks, keep data and gps usage to a minimum (my regular use), and I charge my battery when the phone is dead up to 100%.
The back of my one x gets very very hot sometimes. This varies rom to rom. Started with stock sense ICS, took the OTA jelly update, now I am rooted, s-off, and on cyanogenmod 10.2 nightlies (which run insanely well btw). The issue is the same. It reacts the same, and is just as unpredictable. I have read about this, and know its a hardware issue, but I am still curious about it, as I have heard SO many different things. I am usually able to quickly curb the issue by turning on airplane mode, or turning my phone off (for a while, as rebooting doesnt seem to help).
In passing, I also read something about "HTC Charge Mode". I have read forum posts where people say things like "hold both volume keys and the power button for two minutes, this with re-calibrate the battery circuit." There are so many combinations of keys and timings that people talk about that I can't help but believe that it is all garbage.
The heating up is typically caused by camera usage, data (radio, I assume) usage, games (temple run 2, gyro), and sometimes even spotify (offline playlists). Wifi seems ok, not too much of a contributor. When I was on stock sense jellybean, I was able to fix a lot of the heating up by turning off "google location services".
The weirdest part is that if I feel the phone warming up, I can go into airplane mode like I said, and its fine. If I keep perpetuating it, however, it gets very, very hot. Hot enough, im sure, to melt soldered connections. I turn on airplane mode, and it doesnt get much better. This is when I have to turn it off. Sometimes it hurts my leg in my pocket if I absentmindedly leave data on.
So I want to know -
1) what is the deal with the battery on the one x
2) can I cycle the power like I could on my captivate?
3) if you know anything I don't about the heating up issue, please share
Thank you so much for reading! I look forward to the possible feedback!
TL;DR - please read the post! I'd really appreciate it!
One thing I do know is that after doing your initial few charge cycles when flashing a ROM, it's better to not actually let the battery level get too low before charging. I read an article by a battery scientist, he stated that continual full discharging of the battery will decrease the long term battery life. So, it's best to do top-up charges from ~40% to full charge. Obviously you can disregard this when doing your initial charge cycles.
Some of these phones heat up more than others. Having the phone in your pocket or any enclosed space for an extended period of time will encourage it to heat up. I can't remember the technical term, but it's a combination of there not being enough air flow around the device to facilitate its cooling down, and nowhere for the heat to go. So it just gets worse.
So knowing that, there are some steps you can take to mitigate the heat, even if only in a minor way.
Sent from my Evita
Hello everyone,
So I've noticed some people have been complaining about the battery life on their phones, I've gone through the same woes and complaints with every Android phone I've ever owned. Here's what I do do get a much improved battery life... Some of this is non specific so you might need to find out if your version supports these features. None of this requires root access.
#1 First thing I do with any new phone is catch all the updates, not through the Android OTA feature, but I'll run it through whatever recovery software that the manufacturer has available to get it up to speed with the most recent version.
#2 After the update I'll carefully charge it to 100%. By carefully I mean not leave it on the charger overnight or for more than a couple hours after it hits 100%. Don't let the charge drop below 20% and don't charge it beyond 80% for a few days unless your device has a smart charging feature like ours does. The system is learning out habits.
Also, be sure to use the charger it comes with. Anything else might charge it in Turbo Mode and while our devices and batteries support this feature, be mindful of your use. It could possibly cause the battery to loose capacity more quickly over time.
#3 Keep Bluetooth and Wifi off if you aren't using them or you don't live somewhere where you're able to grab hotspots on the go (Comcast, Xfinity, these have so many hotspots in some big cities -Chicago does - it might make sense to leave them on here to save on data. Make sure if you're using Xfinity that you research creating a hotspot profile so your phone can do it automatically - there's an Xfinity app for that)
#4 Our phones also have an option for "extra dim" screens. This finesses the brightness just enough and should save power too. Please be mindful of your eyesight though.
#5 Heavy users - gamers, having Facebook polling for updates, and other programs can be working hard in the background. After a few days to a week, I'd check your battery stats and see what's eating up the charge and potentially limiting those apps or install the "lite" versions.
#6 Less nervous fiddling with the phone. I'm one of those people who have their phones in hand all day long. I started putting it down when I wasn't actually using it, and keeping it in pocket or elsewhere. Too much playing with the keys I noticed I was constantly turning the screen on and off. That will definitely use up a little more charge. Don't worry, your phone won't miss you! It's ok to not pay attention to it when it's not in use. It'll let you know when you have a text, call or whatever if you turn the volume up
That's about all I do on my phone and I easily get a full day if not more (unless I'm excessively playing a game all day). This has been true for me on any Android phone I've owned across the board since using this approach.