The search for decent battery life. - Captivate General

I know I know that disabling data can get me 24-30+ hours of battery life. However for my on the go lifestyle, that's just not possible. I depend on my phone to keep my email updated. I have four email accounts (two of which are exchange) that sync calendars and contacts as well as email. I was using push on my two exchange accounts, but I've changed that to do every hour for one and every 15 minutes for the other. my other emails are set to check every hour. I have craigslist notifications set to check a single time per day. I have a weather widget that is only supposed to check every 4 hours.
I am running Perception 10.2 with the latest firebird 2 kernel, but have also tried various versions of speedmod's kernel. I have tried the following modems
JL1, JL2, JL3, JK4, KP1.
No matter what I cannot seem to get more then about 10 hours of battery life on standby ONLY. no phone calls, no turning the display on, nothing. I consistently get around 1 hour of time per 10% drain on my battery. I'm not asking for miracles. I just want my phone to be able to last at least 12 hours (a full work day plus drive time.)
I've already set the programs with the most spartan settings I am willing to use. I'd rather have my phone pushing data to my much more often, but I understand that's not going to be possible unless I can find a drastic increase in my battery life. What else can I do?

I have 3 email push accounts, and google voice syncing all the time. Email includes emails with attachments too, and EDGE is pretty much sufficient for most of these things. Even for normal day to day activities like browsing XDA, EDGE is pretty much sufficient.
So I would advise u to switch from 3G to EDGE. U can turn on 3G when u need more bandwidth demanding apps. This would reduce some strain on ur battery.
Only downside would be that u can't browse n talk on phone at the same time. But its ok by me to get a few mails after the call I am on is over. I can live with this small inconvinience in leiu of the additional battery gain.
As of this minute, with the configuration I have in my signature (am using xcal kernel), I have like 63% battery left after ~7.15 hours standby, with 1h31m of display on and 40m of calls, alongside mails being pushed.
Edit: At the end of my 'normal' day with 'moderate' usage (1-1.5 hours calls and 1.5-2 hour display being on (not for games/movies, but with active data transfer on like texting), I reach home with ~50-60% battery left.
On a side note: I would recommend to turn off updates in weather widget, and use a manual refresh when needed.

how do you easily toggle between 2G/3G? it's my understanding you have to use service menus to access the change.

asrrin29 said:
how do you easily toggle between 2G/3G? it's my understanding you have to use service menus to access the change.
Click to expand...
Click to collapse
If u r on the ROM I am using, u can get it in network settings.
Some 2.2.1 ROMs do not have it in network settings. If ur ROM doesn't have it, u would need to access through the service mode code "*#*#197328640#*#*.
When in service mode, here is the sequence to select in the options:
option 1
option 8
option 4
option 3
Note: Pressing 'back' key will NOT take u back. It will close the service menu. Press the 'menu' key, and select 'back' to go back.
Be warned, this would not stick on reboot. U would need to repeat these steps whenever u reboot.
Alternately, I would suggest u move to a ROM that supports EDGE/3G switch. If the ROM supports this option in network settings, it would stick on rebooting too.

Yeah, I just found that. Perception supports switching, but you have to go to the settings menu to do it. I found something called Juice defender, and will play around with that as well. Unfortunately we aren't on an ASOP build, so we can't auto toggle 2G/3G, have to do it from the menu. I will report and let you know what I find!

asrrin29 said:
Yeah, I just found that. Perception supports switching, but you have to go to the settings menu to do it. I found something called Juice defender, and will play around with that as well. Unfortunately we aren't on an ASOP build, so we can't auto toggle 2G/3G, have to do it from the menu. I will report and let you know what I find!
Click to expand...
Click to collapse
Sure. By the way, I don't use any apps like juice defender. Realized that my battery is well off without them by taking care of little things like turning off wifi and bluetooth when not using them (well, these are the only two things I take care of manually).

I would normally agree with you, but as I was looking through the app I saw that it actually disables data while the phone is off, and only turns it on temporarily at intervals to allow application updates. If it truly works just like it states, I could have essentially a battery experience similar to turning off data while still enjoying my notifications. More experimentation is necessary.

asrrin29 said:
I would normally agree with you, but as I was looking through the app I saw that it actually disables data while the phone is off, and only turns it on temporarily at intervals to allow application updates. If it truly works just like it states, I could have essentially a battery experience similar to turning off data while still enjoying my notifications. More experimentation is necessary.
Click to expand...
Click to collapse
Juice Defender gives me 60 to 70 % more battery life. I have it set to sync every 15min and wifi is location based.

Yeah, Juice Defender works absolute wonders! it gives me the same amount of battery savings that switching to 2G gave me, but automatically enables and disables itself when I need it. I'm on 70% battery left with over 7 hours off the charger, and that was taking voice calls and doing some light email checking!

Try a kernel that supports OC/UV. You don't have to overclock, but undervolting is what you want. Check out Suckerpunch kernel. Nice guide by shaolin. Can't argue against a black belt. lol.

xdahgary said:
Try a kernel that supports OC/UV. You don't have to overclock, but undervolting is what you want. Check out Suckerpunch kernel. Nice guide by shaolin. Can't argue against a black belt. lol.
Click to expand...
Click to collapse
Unless I can only have it underclock while I'm not using it, I think I'll pass. I bought the Captivate for it's 1GHz proc, if I wanted something slower I would have gotten the aria.

You misunderstand. It's undervolt. That means use less power at different processing states.

xdahgary said:
You misunderstand. It's undervolt. That means use less power at different processing states.
Click to expand...
Click to collapse
you can undervolt a proc without underclocking it? How is this possible, unless they changed the FSB or timings on the chip?

I pretty sure you can use voltage control and set highest state at 1000mhz and set lower voltages for states below it. That's as techincal I'm going to get.

asrrin29 said:
you can undervolt a proc without underclocking it? How is this possible, unless they changed the FSB or timings on the chip?
Click to expand...
Click to collapse
By running the chip slightly out of spec.
You can usually undervolt each cpu step by 50 to 150 mV. How to find the right point really does just take trial and error. And as with all overclocking/underclocking your mileage may vary. Some phones can really be pushed to the limits and run fine, others don't like even the slightest changes to the stock settings. All depends on how well your phone was put together, and from where in the wafer your CPU was taken from.
Undervolting can save you a fair bit of battery though. Won't help a whole lot when you're actually using the phone (since the screen and 3G/WiFi radios will suck way more power than the CPU), but it will help seriously increase your standby time.
PS While undervolting and overclocking capable kernels tend to be one and the same (since the underlying code is related) you DO NOT need to overclock your phone to undervolt the CPU. You can run your CPU at stock 1 GHz while still undervolting each frequency step. Course, with some tweaking and good luck, you can even get your phone to run at 1.2 or 1.3 GHz while still using no more power than a stock phone at 1 GHz.

How much battery gets used when the phone constantly switches between EDGE and 3G? I'm curious because my building has thick walls and my 3G signal constantly drops down to EDGE when I pick it up, then goes back to 3G when I leave it sitting out on my desk.

Shammyh said:
By running the chip slightly out of spec.
You can usually undervolt each cpu step by 50 to 150 mV. How to find the right point really does just take trial and error. And as with all overclocking/underclocking your mileage may vary. Some phones can really be pushed to the limits and run fine, others don't like even the slightest changes to the stock settings. All depends on how well your phone was put together, and from where in the wafer your CPU was taken from.
Undervolting can save you a fair bit of battery though. Won't help a whole lot when you're actually using the phone (since the screen and 3G/WiFi radios will suck way more power than the CPU), but it will help seriously increase your standby time.
PS While undervolting and overclocking capable kernels tend to be one and the same (since the underlying code is related) you DO NOT need to overclock your phone to undervolt the CPU. You can run your CPU at stock 1 GHz while still undervolting each frequency step. Course, with some tweaking and good luck, you can even get your phone to run at 1.2 or 1.3 GHz while still using no more power than a stock phone at 1 GHz.
Click to expand...
Click to collapse
Thank you for being the geek.

clydethecash said:
How much battery gets used when the phone constantly switches between EDGE and 3G? I'm curious because my building has thick walls and my 3G signal constantly drops down to EDGE when I pick it up, then goes back to 3G when I leave it sitting out on my desk.
Click to expand...
Click to collapse
Any time your phone is forced to switch from 3G to Edge, or even from one band to another, it's not a good sign for your battery. Exactly how much power difference? Grab a multimeter and hook it up between your phone and battery. Record some data, and test for statistical significance. And let us all know.
Short of that, I'd say if you spend a lot of your day in an area with known bad coverage, I would hop into the engineering mode (*#*#0011#*#*), and lock your phone to a specific band and radio mode. Like 850 MHz EDGE, or 850 MHz W-CDMA. Or if you are in an 1900 area, then 1900 EDGE/W-CDMA. Not just EDGE or 3G mode, but a specific band AND radio mode. You need to be smart, and pick the band that has the best coverage so you don't make life even harder on your radio, but it can save some battery life over the phone jumping around ever time you walk from one side of the room to the other.

i running paragon 5.1 rom with the 1280mhz kernel overclocked to 1280 and undervolted. my phone has been unplugged since 7:30 am eastern time it is now 8:04 pm eastern and i have 73% battery left lol. i have done everything today on the web screwing around with my phone. the best rom so far and im even overclocked.

nate25 said:
i running paragon 5.1 rom with the 1280mhz kernel overclocked to 1280 and undervolted. my phone has been unplugged since 7:30 am eastern time it is now 8:04 pm eastern and i have 73% battery left lol. i have done everything today on the web screwing around with my phone. the best rom so far and im even overclocked.
Click to expand...
Click to collapse
Post usage stats please, like how long display been on, time spent on calls, etc.
Btw, does this ROM allow switching between 2G and 3G in the mobile network settings menu.

Related

Stable Overclock on Battery [Idea]

I think I may have a simple yet very inefficient method of ensuring stable overclock at higher frequencies. I have been messing around with many different OC kernels (along with many different roms ), and have noticed the same situation. While charging, all overclock speeds beyond 633 are pretty stable. It may take a few attempts to reach a certain speed (as the phone might reboot), but once successful its all golden!
I'd previously though instabilities were due to the fact that these kernels were undervolted and thus, after a certain frequency, needed more juice to function properly, but when I removed the charger. My god...it still ran! Just as effectively for extended periods of time.
The only problem was the phone would either reboot or hang if the screen was powered-off and idle/sleep for more than 1-3 secs. So I tried using SetCpu's profiles to lower the clock speed to various speeds below 633 during sleep. Yet to no avail. The phone would always freeze/reboot when it attempted to clock back up.
So if someone were to develop an app that would implement a toggle feature, or make modifications to the current kernels to disable sleep for test purposes I believe that might help. I am far too inexperienced a programmer to dev this but know there was a command under reference called "Partial Wake Lock" that can disable cpu sleep.
Also I realize, if implemented as is, this will destroy battery life. But with a good toggle switch it can be treated as an Overdrive mode!!!
Forgot to mention that while charging and clocked beyond 633 it always awoke with no problems.
My phone will clock to 710 before freezing up but it's crazy unstable. It seems to behave well at 652 with a freeze up roughly every 6-7 hours. I've never tried it that high with the charger though. Seems interesting.
extended batteries also reduce overclocking, my 2600mah battery peaks at 595, where as the official battery gets me to 633
-------------------------------------
Sent from my HTC Magic
I have exactly the same issue. My G1 runs stable on 672, while plugged in into
the charger. Even using GPS for navigation, browsing and so on, everything works great. As soon as the charger is plugged out and the phone goes into sleep it reboots.
I end up in changing the frequencies on demand with setCPU. When i need more speed, e.g. browsing the web, i set it manually to 672. And before putting it in my pocket i reduce to 614. Even on battery i can use 672.
Also tried profiles in SetCPU but this did not help.
BTW. Using 5.0.8t4, same was on t3
Damian
Nagoki said:
I think I may have a simple yet very inefficient method of ensuring stable overclock at higher frequencies. I have been messing around with many different OC kernels (along with many different roms ), and have noticed the same situation. While charging, all overclock speeds beyond 633 are pretty stable. It may take a few attempts to reach a certain speed (as the phone might reboot), but once successful its all golden!
I'd previously though instabilities were due to the fact that these kernels were undervolted and thus, after a certain frequency, needed more juice to function properly, but when I removed the charger. My god...it still ran! Just as effectively for extended periods of time.
The only problem was the phone would either reboot or hang if the screen was powered-off and idle/sleep for more than 1-3 secs. So I tried using SetCpu's profiles to lower the clock speed to various speeds below 633 during sleep. Yet to no avail. The phone would always freeze/reboot when it attempted to clock back up.
So if someone were to develop an app that would implement a toggle feature, or make modifications to the current kernels to disable sleep for test purposes I believe that might help. I am far too inexperienced a programmer to dev this but know there was a command under reference called "Partial Wake Lock" that can disable cpu sleep.
Also I realize, if implemented as is, this will destroy battery life. But with a good toggle switch it can be treated as an Overdrive mode!!!
Click to expand...
Click to collapse
The speeds will be different on different phones due to the hardware even slightly different depending on where the phone was made mine can go to 720mhz while others 614mhz which means unless another way of overclocking is found then we won't have a stable overclock for a while :/
mejorguille said:
My phone will clock to 710 before freezing up but it's crazy unstable. It seems to behave well at 652 with a freeze up roughly every 6-7 hours. I've never tried it that high with the charger though. Seems interesting.
Click to expand...
Click to collapse
Lemme know how that goes. I've noticed higher clock frequencies are much more stable while charging.
Jedipottsy said:
extended batteries also reduce overclocking, my 2600mah battery peaks at 595, where as the official battery gets me to 633
-------------------------------------
Sent from my HTC Magic
Click to expand...
Click to collapse
That's strange. Maybe its a voltage difference between batteries that makes its more unstable.
vassloff said:
I have exactly the same issue. My G1 runs stable on 672, while plugged in into
the charger. Even using GPS for navigation, browsing and so on, everything works great. As soon as the charger is plugged out and the phone goes into sleep it reboots.
I end up in changing the frequencies on demand with setCPU. When i need more speed, e.g. browsing the web, i set it manually to 672. And before putting it in my pocket i reduce to 614. Even on battery i can use 672.
Also tried profiles in SetCPU but this did not help.
BTW. Using 5.0.8t4, same was on t3
Damian
Click to expand...
Click to collapse
I believe when the phone is charging the operating system either suspends or extends idle/sleep when the screen backlight is off. This would explain why it reboots on battery and not while plugged in. Also the SetCpu profiles would work if only overclocking wasn't so unstable.
xillius200 said:
The speeds will be different on different phones due to the hardware even slightly different depending on where the phone was made mine can go to 720mhz while others 614mhz which means unless another way of overclocking is found then we won't have a stable overclock for a while :/
Click to expand...
Click to collapse
That is true, but if we can help the relative stability of each clock rate past 528 by using simple methods (i.e. overclocking while charging), we can simply aim to improve its reliability until a better way to overclock is found.

Looking for proven and tested higher capacity battery for HTC Desire

As above, anyone using higher capacity battery for their HTC Desire and it is tested and proven to last longer than the original batter? Can post the link to purchase the battery?
Thanks!
Before you buy another battery, have you read this thread about calibrating your battery?
And have you installed a rom that allows underclocking? It makes a massive difference.
I am now getting 20+ hours from my phone where as before underclocking I was getting 8 hours.
Same amount of usage, just underclocking when screen is off.
Erm.. I will go read about it, but because I want to retain as it is now, thats why I'm looking for an extended battery.
Sent from my Milestone using XDA App
bryant_16 said:
Erm.. I will go read about it, but because I want to retain as it is now, thats why I'm looking for an extended battery.
Click to expand...
Click to collapse
What kind of battery life do you currently get? Before (accidentally) calibrating my battery I was getting around 10-12 hours, now I'm getting around 36-42 hours.
I'm looking for one that can last me more than 1 day.
Lennyuk said:
And have you installed a rom that allows underclocking? It makes a massive difference.
I am now getting 20+ hours from my phone where as before underclocking I was getting 8 hours.
Same amount of usage, just underclocking when screen is off.
Click to expand...
Click to collapse
Hey buddy, which app do you use for underclocking? Cheers,
bryant_16 said:
I'm looking for one that can last me more than 1 day.
Click to expand...
Click to collapse
Well, I'm using the standard battery and have 26% remaining with "1d 10h" since unplugged (admittedly I haven't used the phone for that much in that time, just some internet usage, a couple of calls, but it's been constantly on WiFi or 3G to sync GMail).
Use SetCPU for underclocking, and use JuiceDefender to automatically turn off your data connection while the screen's off/locked.
It will still reconnect every 15 minutes to sync, and will remain connected as long as there's any continuing 3G traffic while the screen's off. Basically what it means is you're running one of the most power-consuming parts of your device only 1/15th of the time, which make a big difference. Text messages and voice calls come through instantly still - only things requiring a data connection like facebook, weather, twitter, etc will have any delay, and even then it'll only be 15 minutes at the most.
You can also try setting your phone to WCDMA-only, which means it won't be constantly trying to connect and maintain two radios simultaneously. GSM-only would be even better but depending on your carrier it might not work at all or might only work for voice.
With SetCPU try making a profile to automatically go into "powersave" mode when the screen's off, which will ensure the CPU never clocks up past its minimum speed during that time. It's still over 200 mhz, more than enough for anything you might want to do in the background. For normal operation, between 499 and 768 mhz as the maximum clock, depending on your preference, should be adequate and will save you a little bit of battery life as well all the time.
Also, download a widget to allow you to manually set screen brightness when you're indoors and the auto setting is useless. I have my screen brightness set to 15% while indoors and it's still plenty bright. I have the SLCD model, I don't know if that makes any difference.
My phone has been off the charger for 17 hours and 10 minutes. During that time, the screen was on for 2 hours and 29 minutes. I'm at 79% battery life with the standard battery.
Mugen 3200mah. Mine lasts a day with ease and heavy use.
paprkut said:
Mugen 3200mah. Mine lasts a day with ease and heavy use.
Click to expand...
Click to collapse
Yours able to charge it properly?
A small update to my previous post... I'm now at 32 hours, 38 minutes uptime, 4 hours 44 minutes awake time (screen on). Battery just reached 60 percent. Stock battery.
Remember when you made the choice to buy an Android, you were in effect saying you wanted to have a highly customizable miniature computer. Just like when you customize [insert your desktop OS of choice] to suit your taste, you need to configure your phone in order to get what you want out of it - namely, better battery life than with the standard settings.
HTC's goal with the Desire was to have a showpiece, it runs very fast and it looks good doing it. But they designed it with frequent charging in mind. Since most of us here, I imagine, would prefer to charge less often, we just need to configure the phone appropriately.
If you want a guaranteed solution, try this:
- Install NextSense rom (it's free, latest version right now is 5.3 AFAIK, I'm currently using 5.2 still)
- Install JuiceDefender - it's free on the market and its default settings are, for a change, very intelligent and effective.
- Install SetCPU - You can get it free on this forum. Set it to "interactive" mode with a bottom speed of 245 and a top speed of 806 to start with. The default is 998 at the top, but 200 mhz doesn't make a big difference in this case except to help battery life a bit. Once installed, add a profile for "screen off" which sets the phone to "powersave" mode. This will keep it running at the minimum clock any time you're not using it. Nothing running in the background while you're not even using the phone requires more than the minimum CPU speed.
- Install the Brightness Widget by Curvefish. It's free on the market. Put its widget on your desktop and keep your screen brightness at 25% while you're indoors. 15% is what I use, but 25% is one of the presets so it's a bit easier. I have an SLCD display so the brightness I get on auto might just be different from what OLED gets on auto, I don't know, but in any case for me it's way brighter than it needs to be.
- Set your screen timeout to no more than 2 minutes
- Make sure any apps that sync data do so in a reasonable interval. +/- 15 minutes won't ruin your day for most things.
- Under Wireless & Networks, set your phone's connection to WCDMA-only (3G-only). For many people this results in an increase to both signal quality and battery life, since it allows your phone to only run one radio at a time, making a significant difference. If it doesn't work for you, it's as simple as turning it back to the default setting.
- Disable haptic feedback and see if you mind the difference. Making all those little vibrations takes power too.
- Finally (obviously) don't run a live background, but you probably already know that.
Doing all of the above takes an hour or maybe two at most to set up and the difference in battery life is tremendous. It's simple to do, I worked out all of the above on my own and I've literally only had the phone for 4 days now I think, never touched a smartphone before in my life let alone an Android.
Give it a try, you have nothing to lose, and it will probably save you needing to buy a battery. Or, if you still buy a double-capacity battery, it'll mean you can run for like a week on a charge.
edit: also make sure to get the latest version of the radio driver, I don't have a frame of reference for comparison since I updated mine right away, but apparently it makes a fair bit of difference and probably gives you a more reliable cell signal in the process.
In case you think I'm exaggerating, here are some pics I just took.
What's the ideal settings for juice defender? Cos my phone is not rooted so I'm not going to use the SetCPU application.
What do you mean charge properly ??
Is it able to charge?
bryant_16 said:
What's the ideal settings for juice defender? Cos my phone is not rooted so I'm not going to use the SetCPU application.
Click to expand...
Click to collapse
"Ideal" settings are basically the way it's configured by default. You can't improve upon them much even by getting the "premium" upgrade unless your phone is rooted... but SetCPU is a better choice in that case anyway.
Just install it, hit "enable" after it's done auto-detecting your phone's capabilities, and you're done. It's really that simple.
Be sure to add it to your task killer exclusion list if you use one.
You saying the default option is for SetCPU or Juicedefender?
So just download the free juicedefender is good enough for me already since the pro version is more for rooted phones? (mine is not rooted)
Can somebody pls. post the link to SetCPU?
cyron_at said:
Can somebody pls. post the link to SetCPU?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=505419
bryant_16 said:
So just download the free juicedefender is good enough for me already since the pro version is more for rooted phones? (mine is not rooted)
Click to expand...
Click to collapse
Yes exactly. The pro version unlocks some more customization but ultimately won't add a whole lot to your battery life no matter how it's set up. I mean, beyond what the "regular" version does.

HELP! Where did I go wrong?

So I just got a brand new D2G and thanks to the info in this forum I rooted it and installed fission rom and FRM...Im loving the phone, its fast, smooth and beautiful but the battery is AWFUL. I have read all the info about how to get the most out of your battery and everything on these forums but mine is waaaay worse than anyone has said before.
For instance, last night my phone was charging oernight, at 6 am when i woke up to pee it was at 100% so I unplugged it and went back to sleep, come 10 am when i woke up my phone was down to 15%!!! From just sitting there with the screen off...
Ive set the network to CDMA/Evduo automatic, installed Jrummy's overclock app...Can anyone explain in detail what exactly the settings in the overclock app mean? "set scaling frequencies at boot, cpu scaling frequencies etc?" for instance if I set scaling frequencies not at boot to ultra low voltage and 1 ghz and lower, do i need to also go into cpu scaling frequencies and make profiles and stuff?
Any information is greatly appreciated, Ive been reading up for days but this stuff is hard to find clear answers on specific issues. Thanks!
This is probably the most basic first thing to ask/do, but have you checked the battery useage to see which apps are using the most power? try doing what you did where you charged, and then let it sit for 4 hrs, and after that see what's using the battery, I bet there is some app that just nonstop uses the gps or 3g data or something wearing your battery life out super fast.
Yeah i looked at that this morning to see and all it said was suspend took up like 90% of the battery...Doesnt make any sense
1. Set at boot isn't what you're thinking. Set at boot means that whatever your current settings are will be set the NEXT time the phone boots. This is used when you have a setting you like. The reason you DON'T want to set at boot is that if you accidentally pick a setting that your phone doesn't like, and it makes it crash, then next time it will boot up with normal settings. Otherwise, you'd be looking at some work doing a recovery with either CWR or RSDLite... There are better ways to spend 30 minutes. Disclaimer: I use SetCPU, but the settings are all essentially the same.
2. For scaling, unless you're a power user (read: Geek) who's really up on his stuff, you should just stick with ondemand. This means your CPU will run at the lowest frequency possible, but will scale its speed up when processes call for it. This is efficient.
3. Yes, you should still make profiles. The setting on the main screen where you choose "Set at Boot" (Again, I'm speaking from SetCPU experience, but it SHOULD be the same) is just the main profile, setting the global minimum and maximum. You should leave the minimum on this at 300. The phones don't like to run much lower than that, even with the screen off; They start not ringing for calls, not waking up, etc. Set the maximum to whatever you want the max to be. You can overclock, which will obviously hurt your battery life. You could underclock and set the maximum to 1GHz, or even 800MHz, which would have a decent effect on battery life with no noticeable performance decrease to the average user. I run mine at the stock 1.2GHz and it's fast enough for my needs.
4. I wrote this thread to help people maximize their battery life. It's pretty detailed, you should give it a thorough read, it works well for me, and seems to work for others. I'm at 32hrs unplugged and my battery has gone from 90% to 20%. That's pretty light use, and I have an extended battery, but I still see over a day on my stock battery when I use it. There's a list of my SetCPU profiles there too, that might be helpful in setting up your own.
Thanks for the info on overclocking, I think I have it figured out now...
I will definitely read through your thread, but is it possible that I just had a bad battery? due to a shipping error, when verizon sent me my phone they sent 2 by accident so I just swapped out the battery for the other one and it seems to be doing much better already...

What apps are you using? Juice Defender? Set CPU?

I am coming over from the sd version of android on my HD2. I had to download all sorts of stuff to get it working correctly. I already found Set CPU does not work correctly. Has anyone tried SD Card Increase or Juice Defender. Are these things needed?
I read the speed up apps thread but was wondering about these apps in particular.
Is there a way to regulate the CPU to save battery?
Edit:The latest version of SetCPU seems to work fine. I think I had an old version.
I am also using Antek App Manager to freeze battery hogs like wifi calling.
Where's my Droid Power is another helpful app to isolate what is killing the battery.
Anyone try a screen off profile with setcpu yet?
Sent from my G2x
Setcpu wont work until kernel allows it.
G2X
SetCPU works at the driver lvl. The Nvidia tegra 2 option is there to pick when you 1st load the app. You can set profiles as well. you just can not control the scaling yet. You can control how the cpu runs
Running SetCPU and it works fine for setting profiles and helping to give ya a bit better battery life.
I'm also using juice defender and power manager. With them and my profiles set up similar to what I had on my Nexus One I am getting really good battery life.
I got over 24hrs (closer to 36 actually) on my last charge, but my usage wasnt too heavy, but close to average for me.
I've got a profile set-up for "screen off" through SetCPU along with using Juice Defender running all the time. I also used Bloat Freeze to stop the random stuff from even starting to cause drain.
cbsummers said:
Running SetCPU and it works fine for setting profiles and helping to give ya a bit better battery life.
I'm also using juice defender and power manager. With them and my profiles set up similar to what I had on my Nexus One I am getting really good battery life.
I got over 24hrs (closer to 36 actually) on my last charge, but my usage wasnt too heavy, but close to average for me.
Click to expand...
Click to collapse
I was curious about what kind of profiles/set up you had for these 3 applications: Setcpu + juice defender + power manager. Perhaps you can prepare a guide for us. It would be greatly appreciated =)
My device gets me 10 hours, I am very interested on how you are getting 24+ hours.
slickerxcuh said:
My device gets me 10 hours, I am very interested on how you are getting 24+ hours.
Click to expand...
Click to collapse
Last cycle I did, I got 25 hours on a single charge. This is exactly what I'm doing. First, root. Next, set up sync so that it only syncs apps when you are using them, as there is a problem with the 4g handoff to Wi-fi that seriously messes with battery life. Set Wi-fi sleep policy to never, so 4g doesn't interfere with it. Set device to use 2g network only, you might get better reception. If you need a fast connection, just enable it real quick. There are widgets you can use to switch it back and forth quickly. When rooted, use root explorer or bloat freezer to get rid of/freeze ALL T-mobile apps. These things always use data, even when Wi-Fi is available. Since they start on their own, you will always have 4g on, sucking your battery dry (and your wallet if you don't have unlimited data). I've also heard updating the apps works, if you are planning on keeping stock ROM. Keep brightness to its lowest setting unless you need it higher for whatever reason. This setup might seem extreme, but i've been on the internet since 6 am, playing need for speed shift, watching youtube, listening to music and I'm at 65%.
Factory reset and do the google setup immediately. For whatever reason, this is important. Let the battery run dry for the first week or so, and then charge it all night.
Above all, remember that the battery stats on this device are ALL CRAP.
http://forum.xda-developers.com/showpost.php?p=13182735
Read this post, beautifully explained.
Good luck!
Though far less sophisticated, I like Superpower the best. It very simply and efficiently disables data/wifi when the screen is off, which is all I need.
Thank you for taking the time to write that up. Definitely will give this a shot soon enough.
slickerxcuh said:
I was curious about what kind of profiles/set up you had for these 3 applications: Setcpu + juice defender + power manager. Perhaps you can prepare a guide for us. It would be greatly appreciated =)
My device gets me 10 hours, I am very interested on how you are getting 24+ hours.
Click to expand...
Click to collapse
Sorry for the slow reply, had a deadline beating down on me.
For the most part I just set up several profiles in set CPU and also profiles on power manager, and I just use the basic settings on juice defender.
SetCPU profiles I have are:
Screen Off 760max/216min
Battery<25% 816/456
Battery<15% 608/312
Hope that help some. Mine seems to be averaging about 18-20 hrs per charge now, but I find myself messing with it quite a bit I think once I get back to my normal usage, like my usage on my N1, it will easily make it 24hrs with a charge.
preview versions of Riptide GP, Pinball HD, and of course some Angry Birds or another - gotta catch em all!
That reminds me - why hasn't nintendo released PokeMon for any system other than their little nintendo handhelds? Seems like an untapped market.
My Thread
Well actually i just got done typing up a new thread on how i get 20+ hours on my G2x. Here is the link: http://forum.xda-developers.com/showthread.php?p=13279194
Cant get setcpu to work. Force closes on me. What did you guys do?
Sent from my LG-P999 using XDA Premium App

[Q] Can LTE really be this damning to battery life?

Of course I've read dozens of individual's reports of their own personal battery experiences with their phones, but the basic conclusion I've come to is that I simply cannot run this device with LTE enabled at all times. I have great 4G coverage in my area and while speeds are fantastic, my phone is imperative for my push notifications so I have a corporate email client running using data constantly, and making it impossible for me to disable background data.
das BAMF Remix 1.6.3
Adrynalyne's cf_2.0, smartass, 1024000 max
245760: 775
368640: 825
768000: 900
1024000: 975
I went through the process of freezing EVERYTHING non-essential and removing all widgets except the Sense home clock. With LTE enabled I got 6 hours of battery life at best, with moderate usage; I would be at about 60% by the time I got to the office in the morning.
Under same conditions with only 3G enabled I can get 17 hours without much difficulty and that usually includes playing a few games during downtime.
Am I just doomed to use 3G-only in order to maintain data persistence? If Tasker had support for toggling 3G-only and 3G/4G-auto I would be such a happier boy as I could then only turn on 4G on-demand, but at this point it's too cumbersome.
spuniun said:
Of course I've read dozens of individual's reports of their own personal battery experiences with their phones, but the basic conclusion I've come to is that I simply cannot run this device with LTE enabled at all times. I have great 4G coverage in my area and while speeds are fantastic, my phone is imperative for my push notifications so I have a corporate email client running using data constantly, and making it impossible for me to disable background data.
das BAMF Remix 1.6.3
Adrynalyne's cf_2.0, smartass, 1024000 max
245760: 775
368640: 825
768000: 900
1024000: 975
I went through the process of freezing EVERYTHING non-essential and removing all widgets except the Sense home clock. With LTE enabled I got 6 hours of battery life at best, with moderate usage; I would be at about 60% by the time I got to the office in the morning.
Under same conditions with only 3G enabled I can get 17 hours without much difficulty and that usually includes playing a few games during downtime.
Am I just doomed to use 3G-only in order to maintain data persistence? If Tasker had support for toggling 3G-only and 3G/4G-auto I would be such a happier boy as I could then only turn on 4G on-demand, but at this point it's too cumbersome.
Click to expand...
Click to collapse
Huge *NOTE!*
Go to settings, menu, wireless networks, mobile networks and uncheck the third box. No need to have mobile data always on for most peeps . You'll still have 4G n everything, but gain a good 1-2 maybe more hrs (depending on use, kernels, governor settings, and I/O scheduling. I personally am running BAMF 1.6.2 with adryns 4.4.7 kernel, no set CPU, using tool box for that at 245mhz min - 1.024GHz max with ondemand governor and most importantly SIO Scheduler. Try these n you will have amazing performance and better battery life. Let me know you opinions
Sent from my ADR6400L using XDA Premium App
Did you try lte only? I get 10-16 hours depending on use.
this is not a signature I type it in every time maybe sent from my phone or my computer
dopediculous said:
Huge *NOTE!*
Go to settings, menu, wireless networks, mobile networks and uncheck the third box. No need to have mobile data always on for most peeps . You'll still have 4G n everything, but gain a good 1-2 maybe more hrs (depending on use, kernels, governor settings, and I/O scheduling. I personally am running BAMF 1.6.2 with adryns 4.4.7 kernel, no set CPU, using tool box for that at 245mhz min - 1.024GHz max with ondemand governor and most importantly SIO Scheduler. Try these n you will have amazing performance and better battery life. Let me know you opinions
Sent from my ADR6400L using XDA Premium App
Click to expand...
Click to collapse
Yeah, I've read your post on this elsewhere already... since you did not read my post I will repeat that I cannot disable data persistence as I rely on my push notifications for corporate email. Second, my CPU settings are already arguably the most efficient they can be for both performance and power consumption.
rizzomegav said:
Did you try lte only? I get 10-16 hours depending on use.
this is not a signature I type it in every time maybe sent from my phone or my computer
Click to expand...
Click to collapse
Is that the last option? "LTE mode"
Won't this prevent 3G from working in non-4G areas? Also not an option, I need data service at all times.
I have it on 3g only and I use a radio switcher app. whenever i feel like browsin the web I just flip on LTE and turn it off when im done
Download LTE Switch to save your battery life
This free app LTE Switch was sent to me from a friend and it works great to toggle between 4G to 3G and saves my battery life everyday....
Google LTE Switch in and Android Market
LTE mode just drops it into roaming (turn roaming on under network connections) when it's out of range. You can always switch back to 3g if you know you need a faster connection after that.
Anyways, the saying goes "you cant always get what you want"
In my opinion its the search for 3g signal that is damning the battery life. I've always felt that the 1x to evdo transition was never fixed. Rather evdo coverage hid that problem.
If you set it to LTE only the transition to 1x from LTE is flawless and instantaneous when LTE signal is lost and vice versa. In addition, the battery life is much much better.
Sent from my ADR6400L using Tapatalk
spuniun said:
Yeah, I've read your post on this elsewhere already... since you did not read my post I will repeat that I cannot disable data persistence as I rely on my push notifications for corporate email. Second, my CPU settings are already arguably the most efficient they can be for both performance and power consumption.
Click to expand...
Click to collapse
I assume your corp doesn't use Exchange? I don't need mobile data persistence and I still receive push notification.
WillTheGreat said:
In my opinion its the search for 3g signal that is damning the battery life. I've always felt that the 1x to evdo transition was never fixed. Rather evdo coverage hid that problem.
If you set it to LTE only the transition to 1x from LTE is flawless and instantaneous when LTE signal is lost and vice versa. In addition, the battery life is much much better.
Sent from my ADR6400L using Tapatalk
Click to expand...
Click to collapse
Signal searching definitely wrecks batteries. At home with on very very light use, an hour of mostly idling takes maybe 1-2%. At work where signal is constantly at 0 to 1 bar (3g and 1x) it goes through 5-6%/hour just sitting there.
spuniun said:
Yeah, I've read your post on this elsewhere already... since you did not read my post I will repeat that I cannot disable data persistence as I rely on my push notifications for corporate email. Second, my CPU settings are already arguably the most efficient they can be for both performance and power consumption.
Click to expand...
Click to collapse
you don't need data persistence for push email to work(exchange/gmail/hotmail). It pushes and enables data as needed.
I figure I would add some feedback...
My original TB got the worst battery life ever. Even with the extended battery, I wouldn't make it more than 6-7 hours most... on a good day. That was running stock software, then BAMF remixed (Froyo).
I ended up having an issue with the phone, so I had them send me another one. The new one, completely stock, w/ extended battery, has been able to make it through the whole day without a single charge. The only time it didn't, was yesterday. For some unknown reason, something was dragging down the battery to the point where it only made it 10 hours and was completely dead before I was able to charge it.
Fast forward to today, and I am 81% capacity after 6 hours and a few phones calls, both on the handset and the bluetooth hands free in my Acura.
FWIW: I leave on WiFi, Bluetooth, GPS, have gmail checking mail all day, Exchange account for work (via Touchdown), auto-brightness, many updates throughout the day via Pulse newsreader, normal surfing using the Miran web browser.
I've run the following "tests" for my situation....
With 4G enabled, after an overnight charge, unplugging at 9am, my batter is down to 20% by 2pm. This is after using the phone for a few calls, some texts, heavy email, some internet browsing, youtube, and a little bit of friendstream usage.
Under the exact same usage, but only on 3G, at 2pm, I'm consistently around 65% battery remaining.
I've run this both ways (with 4G and without it) 3 times each now in the past week. Results are almost the same every day.
After this, I decided to put the LTE OnOff switch on my home page. I run through most of the day on 3G. I enable 4G only when needed (browsing internet, updating programs, watching youtube or other videos, etc).
It was a little annoying at first, but now its become routine habit and I dont even notice it anymore.
I live in a 4g area and I just have it set to just 4G and my battery lasts me long time.

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