Related
We always neglect the way we charge our mobiles, it’s very important to equally take care of your phone’s battery along with your phone. So, when it comes to the charging then you will have to ensure that you never overcharge your phone which means that never put your phone for charging over night as this may hamper the battery’s life very badly due to which you may even end up spoiling battery sooner than expected. It hardly takes 3 hours for phone to fully charge, so never charge your phone more than this time.
Also, many of the users tend to charge their phones regularly, like even if battery goes below 50-40% people tend to haste and put the phone up for charging. So unless and until you are going away from the charging point, it’s not a wise decision to charge it way ahead than the battery zeroing point. Make use of the AC chargers rather than using the USB points for charging the phone as basically the USB charging does the trickle charging which is not good for often charging the phone.
All batteries has the Golden color notch pins and with frequent pull outs these notches become loosely fit and are rubbed with the pins which leads to the wear and tear of the contacts and hence it decreases the life of the battery and the effective charging of the device is not passed on to the phone as the contacts in the form of pins gets loosen up. And also last but not the least never make use of the batteries which are not as per the prescribed specification chart which comes along with the phone and always use original batteries which can be purchased from Samsung.
Never put additional sim cards or anything like that in the compartment of the battery as this may cause some serious issue with the battery and may even explode at an extreme situation as every battery generates heat and it requires space to dissipate that heat and if its interrupted then it can be dangerous for batteries.
Unless and until you are not using the actual 3G Service, it’s better to choose the GSM Mode network rather than selecting Dual mode or the WCDMA Mode which drains the battery faster than the GSM mode.
Make sure that you set the brightness of the device to automatic and not to the fullest which is set by default, since it’s a touch screen phone back light should be not more than 15 seconds as that’s more than enough which can be done by going to HOME > MENU > Settings > Display > Brightness and Screen timeout
Make sure that You Tube, music listening, programs which runs in the background including the Sync option along with Bluetooth should be turned off whenever necessary as these too constitutes fair amount of battery drain.
GPS as well as the Camera eats up a lot of battery, so always remember to switch these both off when not in use or necessary and specially when battery is low then it’s advised to not to use these features which can be quickly done by setting the widget shortcut on the home screen itself, touch and hold on the Home Screen in the blank area and not on any app icon and select Widget>Power Control. Add this Widget to your home screen to choose the express settings
Copy and pasta.
Printerscape said:
Copy and pasta.
Click to expand...
Click to collapse
El spamola?
Nice post, incredibly informative!
Sent from my Desire HD using XDA Premium App
OP,
WTF - you can't overcharge your battery. The ROM/kernel doesn't allow it. The closer the battery gets to 100% the voltage is decreased further and further. At 100% there is just a small trickle that roughly breaks even with the demand of the phone. Telling people they shouldn't leave their phone plugged in for more than 3 hours is ridiculous. There was just a thread on here a couple of weeks ago where an AT&T employee told someone the same thing, and everyone was making fun of how stupid that advice was.
^+1 !!!!!!!!!!!!!!!!
Sorry, OP. You are passing off bad information.
Thread closed.
Hi All,
I got my Sensation 4G from T-Mobile US last week, and generally loving it. Beautiful form factor, great performance etc. However, I'm quite underwhelmed with both the battery life, and surprised and a little concerned with how hot the phone seems to get.
Regarding the battery, I've done a few full discharge-full recharge cycles, and what I find is that in idle, the battery seems very good. In fact it will stay at 100% for quite a while, but, when using it, the battery will visually decrease, losing charge every few minutes. This is with web browsing, twitter, facebook etc. The concerning thing is that when the battery goes down, it will frequently do a sharp 2-3% drop, instead of a 1% drop. I'm not sure if there are issues with the battery monitoring on this phone or not. If I leave the phone on idle, even for several hours, the battery will drop only a very few percent, which is great, but whilst using, half an hour or so will drop the battery by 10-15% or more. That's with the screen turned down to 25%, and sometimes 11%.
Does that more or less fit in line with everyone else's experiences?
About heat, on idle, the phone will generall maintain a temperature between 80-90F (26.6-32.2C) and feels almost completely cool. Same on charging, it barely noticeably warms up. However, when using, after maybe 10-15mins of web browsing, twitter etc, the phone will have reached temperatures of 105-110F or more (40.5-43.3C). The highest I saw it shoot to was 112F (44.4C). When at these temperatures, the phone is almost uncomfortable to hold. Not burning or dangerous, by any stretch of the imagination, but a little unpleasant. The heat is concentrated around the bottom of the phone - largely on the metal bottom back segment and base, but also the front of the screen - the capacitive buttons and the bottom of the screen.
I used it as a GPS navigator the other day for about 40 minutes in the car. Admittedly it was a sunny day, but by the end, the phone was displaying a temperature of 123F (50.5C) and showing an overheat warning. In addition, despite the fact I had it on a car charger, it had actually lost about 3% of battery.
To clarify, all the battery percentage and temperature readings I've quoted have come from the apps "batteryminder" and "battery life" - both with free versions on the marketplace.
I'm still within buyer's remorse period, so debating on whether to take it to the T-Mobile store and request a replacement unit, or, if this is normal and expected behaviour, then I have a decision to make about whether I want to keep this phone, or return it. Incidentally, I did take it to the T-Mobile store and got a replacement battery, to try that first, but it has so far made no difference.
So, I'd appreciate you folks' opinions and experience. Does what I've described seem like normal behaviour for this phone, or might I have a defective unit?
Thanks in advance for your help!
Craig
Do you have the screen on automatic brightness? Having the screen on for long periods at 100% will heat up the phone. Charging the battery and running CPU intensive tasks like navigation will obviously do that too. Add in some sunlight and this all adds up to a lot of heat in a very confined space.
Heat is a huge enemy of batteries and electronics. I'm not surprised you actually lost battery.
Moral: try to keep it cool.
Sent from my HTC Sensation 4G using XDA App
Hey, thanks for your reply! Generally, I keep the screen brightness down at 11% or 25%. Those are the times when, after some use, I'll see the temps of 105-110F
The time I used navigation, it was up at 100% (or else I wouldn't have seen it, in the sunlight). I had an HTC Thunderbolt which, when I used it for navigation, with screen up at 100%, would also get pretty hot, although it wouldnt lose battery whilst on the car charger.
Where do you live? Ambient temperature may have something to do with it. I live in San Diego and I've seen mine get to 44° inside the house.
50°C is too hot though. Keep it out of the sun and if it continues to get that hot get a replacement.
Sent from my HTC Sensation 4G using XDA App
I'm in the Chicago suburbs and, yeah, it's been pretty hot and humid here recently. Also, my apartment doesnt have too great air conditioning - generally, when the phone is hot, I am too! I noticed the other day, at work, it was a noticeable few degrees cooler than it would get at home. Work has great AC. In addition, in the car, the day it got REALLY hot - it was an extremely hot day, and the car was like an oven anyway.
What you say certainly makes a lot of sense. I actually ran a test with the Thunderbolt last night, and found it would get up to 105F (40.5C) after a lot of browsing in the house. The sensation was maybe 5 or 6F higher than that - which is explainable by the dual-core and metal body. The metal body also being the reason the Sensation FEELS hotter.
Seems that the day-to-day general heat of the Sensation I experience may not be out of the ordinary. I am concerned about the overheating and battery loss when I used it for navigation though.
When i used my N1 for nav on its dock and charging for about 30 Mins (during fall, limited sun) the phone would get super hot as well. I checked the temp and it was around 47C. I have yet to test this on my sensation but i would imagine it being similar due to the similar materials.
In regards to battery temp on normal usage on the sensation I get as high as 38C while playing games, I haven't seen it go past 38C though. On idle it is about 26C, and ramps up to about 33C when I use the phone and not playing games. Compared to my Atrix which runs just as hot at 38C, being largely made of plastic, it actually FEELS hotter in the hand compared to the sensation, I don't think I will ever go back to a plastic phone due to this.
Sent from my MZ604 using XDA Premium App
Mine gets to around 45C during Angrybirds play and the ambient temperature is around 25. I don't think this should be a problem since the battery is new and may be it gets hotter during the first few charges/discharges. Furthermore the aluminum body helps to disperse the heat better.
Thanks for the replies! I think its looking like my experiences are not a problem, and the heat is not out of the ordinary.
Regarding my GPS experience, I tested this evening whilst driving home from work (a 20 minute drive). I used navigation on both the thunderbolt and the sensation to guide me home, and put both phones on the dashboard, in bright sunshine. By the time I got home, the sensation was reading 132F overheat, and the thunderbolt not much lower - 125F, overheat. Sensation felt hotter in the hand (not hot enough to burn though) than the thunderbolt - due to the metal backing I'm sure. Thunderbolt felt pretty darn hot though!
The really interesting thing was, once I got inside the house, the sensation cooled down WAY faster than the thunderbolt. I think the comment above about the metal casing dissipating heat better was right on the money.
I'm more and more edging towards keeping the sensation!
Sent from my HTC Sensation 4G using XDA Premium App
ya camp i have the same phone as you and the battery ranges from about 8-14 hours with moderate use for me. if i'm using it a lot though i can get it to 0 in about 4-5 hours-before root anyway. so i believe yours is acting normal
How is the battery life on the MT? If it's poor (stock), have you found a good utility app to help it last longer?
I usually get about 24 hours of battery life on mine. I have gps turned off most of the time and I'm on wifi a lot with light to moderate usage. I did notice that if I have the GPS on, that the battery does go down much quicker. I assume that's because it keeps trying to get a location even when I'm indoors and it's having a hard time.
Although, I've read a lot of people complain about poor battery life so YMMV.
It depends greatly on whether data is working or not. Usually, I'll have around 90% battery 2 hours into the day. But if data isn't working, like today, I'll go down to 80% in as little as 20 minutes.
Usually, I'll have around 20% after 12 hours. Been giving it a charge in the afternoon, and it hasn't been an issue.
I use Juice defender, and it does wonders for my battery life.
I've found battery life to be comparable to other Android devices; with effective battery management, mine gets me through the work day. My wife has the Optimus V and I have coworkers, one with a Droid X, the other with an Evo; my battery life is no better and no worse than any of those devices. With any smartphone you're going to have to turn off unused radios and turn down screen brightness if you're going to be away from a charger for a long period of time.
Sent from my MOTWX435KT using Tapatalk
Heavy use is the real killer on the Triumph. With just the screen on (minimal brightness) and network on (bad coverage), I can drain the battery by about 1% every minute. And that's no exaggeration -- Battery Indicator Pro keeps track for me. I'm working on a spreadsheet to help chart battery drain during different scenarios.
Thanks for all the replies. Basically what I was expecting, but like to have confirmation
Now to find a good place to buy one. Will probably hit Bestbuy due to return convenience and policies.
Edit: Purchased at Bestbuy, and actually ran into Sprint rep who had one I could look at. We exchanged a few geek tips.
One thing I noticed: I have an LG brand microUSB charger, and the phone would not charge from it when turned on, tho it would charge when turned off. I had an older Motorola microUSB charger and it works fine either phone on or off.
I am getting a whole day of battery life with heavy use. I turned off the background data and turned off all sync. Using the email client with one hour pull with imap instead of the gmail client... Couldn't be happier with the phone...
Sent from my MOTWX435KT using Tapatalk
Yeah, I have also found that turning off sync can get you through the day with less battery used.
Depending on how much I use the Triumph, I can run the battery down in about 2-3 hours (with constant use) or have it run all day long and in to the next day (if I only use it for 1 or 2 short calls during the day.)
My motorola Triumph's Battery Life
I have waited months to post my reviews. I had a Virgin Mobile Intercept and upgraded to this the day after it came out.
Battery life is HORRENDOUS. Not sure how anyone can possibly say its "OK". Sure if you are sitting at home or in the office all day, You can continually have it plugged in and charged. My lighter socket doesn't work in my car ATM so thank GOD I don't drive a lot, and for long periods, I would be SCREWED.
Essentially yes if you turn off GPS, Wi-Fi, Syncing your emails and such, etc etc, then your battery will last longer. But what good is the phone then? I have owned many other androids and they worked for almost a full day with moderate usage with ALL of those things turned on and sync'ing (including Latitude and automatic check-ins). I have lost all of that. I have google talk catching up for hours-old conversations whenever I hit a wifi spot that's saved in my phone.
Juice Defender was my "solution" But it has rendered my phone practically useless for anything besides just having a phone handy when needed. No apps, no moe use of all the bells and whistles that I loved about android in the first place!
I am dealing with it. It just sucks. Sure there are other smartphones with similar issues, and poor battery life, but this has to be possibly the worst or one of the worst. It just is highly unfortunate that this is the case.
Also: Bluetooth syncing works 50% of the time. Constantly have to turn it off and on to get my jawbone(s) to sync. God forbid you answer a call and want to switch over to bluetooth. In those cases it works about 20% of the time.
This is not a good phone for people who are out and about all day or drivers of any sort, unless you have it plugged in the entire day. Forget about using it as a GPS unless its plugged in either, that will drain you battery to 0% in less than an hour.
People say this is due to poor design and rushed to market with crappy signal reception and GPS reception, same with bluetooth antennae. This might be the case, I ALSO have mine suddenly have NO BARS for no reason and I have to power off and on the phone to get a signal back.
ALSO half the time I am out and about and need data connection over 3G, even with bars I get NOTHING. It's very frustrating not to be able to use the phone for what I want to use it for.
I will be getting rid of this puppy as soon as possible and I would do it sooner if I didn't want to avoid a 2year contract.
The good part about the phone is it is MUCH faster and responsive than the Intercept and Optimus. Much better camera (has a flash - FINALLY!) and HD video. Front facing camera is nice to have but of course weaksauce in the resolution dept. Overall A+ for effort, D- in execution.
kneel said:
I have waited months to post my reviews. I had a Virgin Mobile Intercept and upgraded to this the day after it came out.
Battery life is HORRENDOUS. Not sure how anyone can possibly say its "OK". Sure if you are sitting at home or in the office all day, You can continually have it plugged in and charged. My lighter socket doesn't work in my car ATM so thank GOD I don't drive a lot, and for long periods, I would be SCREWED.
Essentially yes if you turn off GPS, Wi-Fi, Syncing your emails and such, etc etc, then your battery will last longer. But what good is the phone then? I have owned many other androids and they worked for almost a full day with moderate usage with ALL of those things turned on and sync'ing (including Latitude and automatic check-ins). I have lost all of that. I have google talk catching up for hours-old conversations whenever I hit a wifi spot that's saved in my phone.
Juice Defender was my "solution" But it has rendered my phone practically useless for anything besides just having a phone handy when needed. No apps, no moe use of all the bells and whistles that I loved about android in the first place!
I am dealing with it. It just sucks. Sure there are other smartphones with similar issues, and poor battery life, but this has to be possibly the worst or one of the worst. It just is highly unfortunate that this is the case.
Also: Bluetooth syncing works 50% of the time. Constantly have to turn it off and on to get my jawbone(s) to sync. God forbid you answer a call and want to switch over to bluetooth. In those cases it works about 20% of the time.
This is not a good phone for people who are out and about all day or drivers of any sort, unless you have it plugged in the entire day. Forget about using it as a GPS unless its plugged in either, that will drain you battery to 0% in less than an hour.
People say this is due to poor design and rushed to market with crappy signal reception and GPS reception, same with bluetooth antennae. This might be the case, I ALSO have mine suddenly have NO BARS for no reason and I have to power off and on the phone to get a signal back.
ALSO half the time I am out and about and need data connection over 3G, even with bars I get NOTHING. It's very frustrating not to be able to use the phone for what I want to use it for.
I will be getting rid of this puppy as soon as possible and I would do it sooner if I didn't want to avoid a 2year contract.
The good part about the phone is it is MUCH faster and responsive than the Intercept and Optimus. Much better camera (has a flash - FINALLY!) and HD video. Front facing camera is nice to have but of course weaksauce in the resolution dept. Overall A+ for effort, D- in execution.
Click to expand...
Click to collapse
This post is harsh. But I agree with most of it. Overall, the Triumph fits with a prepaid phone reputation: niggly bugs, poor battery life, poor service quality when compared to a higher end device.
The main problem here is that you'll be totally dependent on the community for real bug fixes. Every phone has bugs. But the bugs on the Triumph affect core usability and are on a totally different level. I would not count on Motorola to fix these bugs. If you're the tinkering type and a patient person, this may be worth it. But anyone who thinks that they are getting "something for free" is sadly mistaken. You are paying $25 a month for cell phone service, which is great . But all these bugs will make you pay with your time. How? Time looking for new roms, apps to fix bad battery life, time wondering why the touchscreen response is poor, time working around the bugs in every day life. If that is fun to you (and it may be for most people on this forum), fine. But you are paying with your time. Lesson learned is not to be so quick to fall for the specs. The company offering the phone and their track record of pushing out updates should play a large part in my decision next time.
I usually have WiFi turned on all day, and sync. I use the phone on my breaks and at lunch. When I get home I troll forums heavily and watch netflix occasionally. Not to mention Pandora for at least an hour per day. The battery will last if I dont plug it in until the next morning. Bottom line is that a lot of these issues can be fixed with quality software, and a battery cycle of 18-24 hours is something I can definitly live with. Compared to my Ascend, the Triumph is soooo much better in battery dept.
Sent from my rooted Moto Triumph
Battery issues
I am not sure why a lot of people have issues with battery, I unplugged my phone over 7 hrs ago and right now have 57% battery left, now before you hang your head at this look at my usage:
-Over 1 hour of talktime out of 7 hours.
-50+ texts back and forth
-10+ emails back and forth
-5-10 youtube videos
-5-10 pages of web browsing
-dl and install apps
-facebook at least 2-3 times every hour
And some more fiddling around so basically I have been on the phone non stop for 7 hours and its lost only 43%
That said, most of that usage came from the first 4 hours where it lost 36%(1+ hour of talktime, youtube videos im not really shocked there)
6th hour i texted and browsed etc only 5% battery used.
7th hour I just sent back and forth a couple of texts and only 2% battery used.
All this when i dont use any applications like task killers etc..i just let them run the way they want. Also no wifi, everything over 3g.
so imo if it gives that kind of battery its good enough for me. I was really scared when i bought cuz people were complaining so much about its battery but im fairly surprised. One factor that could be though is that I am not running the GPS, no need for it yet, when I do ill update what kind of usage i got.
I get 23 hours battery life with HEAVY usage and 30 if mostly idle. Many may disagree but if you live or work in a Wifi zone, keeping wifi on and setting it to never sleep greatly INCREASES battery life. 3G radio uses more juice especially if low signal or always searching. If you click on Battery Use and see your "time without a signal" is anything over 20% then you will most certainly see increase on battery life if you leave wifi locked on while in a wifi zone.
Also, side note: I have a 1500mah Anker battery that also increases juice time I recommend it!
Sent from my Rooted MOTWX435KT using XDA App
23 hrs with heavy usage? Unless yours came with a 2300ma battery and not the paltry 1380ma battery, there's NO WAY you're getting 23 hours under heave usage.
I'm using a 1500mah calibrated battery and yep, its true I leave wifi on and set to never sleep when I'm at home or work. If not, 3G absolutely murders my battery. My phone drops between 3% and 5% per hour.
Sent from my MOTWX435KT using XDA App
Well today I am having less luck with battery life. I watched two movies on Netflix and constant Facebook. I unplugged at 10:30am and it is now 4:48pm and I am at 52%.. still using 1500mah battery.
Sent from my MOTWX435KT using XDA App
troll somewhere else
I just came from a Samsung Epic 4G. I have to say battery life it at least the same but probably better on the Triumph. The battery is also quicker to swap out on the Triumph. Between the already better battery life and ability to quickly swap, I'm more than happy.
garrmack said:
I just came from a Samsung Epic 4G. I have to say battery life it at least the same but probably better on the Triumph. The battery is also quicker to swap out on the Triumph. Between the already better battery life and ability to quickly swap, I'm more than happy.
Click to expand...
Click to collapse
As horrible as the Triumph batt life is then I'd hate to think how bad the Epic 4g's life was...wow!
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
Ok this is the silliest thing i have ever came across
When i first bought my phone i purchased a 360 case
Its not a good case but its the only one available in my country for the time being
I have noticed that my battery life was terrible specially in idle mode and when reviewed my usage on the stock android battery monitor i couldnt see what is draining my battery . I downloaded the gsam monitor and i saw that phone radio was responsible for 60-70 % of my drain . Although my signal was pretty stable(as i have several other smartphones)and i was at home the whole time . Also what was interesting is that My phone radio usage was on the same level if not higher than the screen usage if both had the same time on
I googled some more and found out nothing about these issues specifically but overall alot of users were having the same battery life as me while others get a much better battery life. I decided to live with the 5 to 6 hours of SOT that mostly everyone was happy with . Although the reviews state otherwise
Today i decided to enjoy the aesthetics of my phone without the casing . I have noticed a massive change in my idle and awake battery life and my phone radio usage has dropped to a merely insignificant value. All of this ofcourse i have been at home with the same coverage as usuall .
I am currently at 87% with 1 hour and 40mins of screen on time
If u complain about ur battery life try ur phone without the case and tell me what u think
I am now on 60% with 3 hours and 57 mins of SOT which is mainly wifi web browsing and 20 mins of video recording and idle drain is almost non existent in this 12 hour period
Does that case have any metal in it?
interesting
Can you post your screen-shots of the same?
WiFi will always use less battery than cell radio as well. Were you on WiFi before or just today?
Yes i always use wifi at home. Cant seem to put links in my post since i have less than 10 posts and i know mobile data uses more power than wifi but it should be like 20% more maximum but frankly i am getting more than double the battery life now . I also use the same charger same cable and same power outlet . The only difference is the case
I now have 5 hours and 20 mins of SOT with 44% left of my battery
The case doesnt have any metal its completeley from rubber and hard plastic . i dont know how does it interfere with my phone radio usage maybe the antennas on the bezzel dont perform ideally when there is somthing hard pressing against it
U can see from the average per complete charge the max that i ever was able to get before is at 4:56
Very strange indeed. I have a hybrid case on mine (black TPU bumper with a clear hard plastic back) and I'm actually getting better signal than I did with my Pixel XL and great battery life. Currently and hour and forty-one minutes screen time and have 79% battery remaining. Most of that drain occurred at the gym where the signal is pretty weak. My wife's S8+ has the same case and she hasn't had any battery problems either.
---------- Post added at 12:48 PM ---------- Previous post was at 12:46 PM ----------
You should compare your cell and WiFi strength with the case on and the case off. Check the dBms, not the bars. Bars lie. Use an app like Signal Checker.
This is without case an phone is layed flat on a non conductive surface
temporary image host
With case with same conditions
free image hosting gallery
There is a difference but not a huge one i suppose . I should test it on a time scale bigger than that i guess
Someone i googled says things in the context that a 4 dbm difference is big thing for emaple a 6 db difference may indicate that the signal is 4 times weaker
Yeah, but mine will fluctuate by a couple dBms just holding it still in my hand. Sometimes moving it from one side of the table to the other. I'd be more concerned by a difference of 10-15 dBms. I don't think that small of a fluctuation would affect your battery that much. I may end wrong I'm no expert by any means.
You are correct the difference is not that big but definitely the drain is related to phone radio usage as it was shown in my previous stats sadly i dont have a screenshot for it
Will do further testing on mobile data and no wifi at home without the cover
The thing is with a phone case for the s8
if u drop it your totalled, but my lifeproof case..... 100% worth it. Dropped it like a million times, no scratches or damage in that sense.
But i have had issues with reception and cell quality w the case. It drives me insane!!