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[Guide] Everything you wanted to know about Li-Ion batteries but were afraid to ask!

So after noticing how much of a difference people get in their battery lives, I've decided to do some research and make a guide-line that will give us all we need to know about properly using our batteries. First part is a general information and usage techniques for LIBs, second part is taken from Google materials on Android-powered devices (G1, Magic, Droid, Nexus One, etc).
Sources:
Wikipedia - http://en.wikipedia.org/wiki/Lithium-ion_battery
BatteryUniversity - http://www.batteryuniversity.com/parttwo-34.htm
Google IO Conference 2009 - http://www.youtube.com/watch?v=OUemfrKe65c
Electropaedia - http://www.mpoweruk.com/life.htm
General Lithium-Ion Battery (LIB) Usage:
• Discharging your LIB fully (or less than 2.4 Volt per cell) is bad for the battery. Every time you do that, it can be said that small part of your battery (some cells) dies (they forever lose their charge). Do not store your batteries depleted, there's a high chance they will die completely or will become very "weak".
• You cannot restore bad LIBs by overloading/heating/praying. You gotta go buy a new one. They DO degrade overtime, some cells naturally lose the ability to gain/give electricity.
• Although it is said that LIBs do not have memory, it's not entirely true. LIBs have gauges that monitor performance of cells, and if you do a lot of small charges, it won't let those gauges to monitor a full battery potential, causing an invalid indication of charge level. A complete charge/discharge should be made when battery capacity seems reduced, that will calibrate gauges and they will provide your phone with correct charge level status. A full charge/discharge cycle should be done every 30 (or so) partial charges.
• LIBs have a shelf-life. Do not buy them to store them. Use them early, use them often, they will die whether you use them or not. Do not buy LIBs to use them in 6 months/year/etc, buy them right before actually using them.
• LIBs have short lives (in comparison to NiCa batteries, etc). You should expect to buy a new battery in 2-3 years after being manufactured. It is caused by internal oxidation and there's nothing you can do to stop or prevent that.
• Worst LIB treatment is to keep it at 100% charge level at high temperature (think laptop/phone under direct sunlight, like car dashboard).
• Best LIB treatment, or LIBs "favorite" charge level - 40%. That's also the usual charge level you buy them with.
• LIBs don't like heat. For example, while always at 100%, typical LIB in a laptop, at temperatures of 25C (77F) will lose 20% (twenty percent!) of full capacity per year. That capacity loss is reduced to 6% (six percent) at 0C (32F), and increased to 35% loss at 40C (104F). So, keep them cool (LIBs like fridges), don't let your devices sit in the sun or overheat at charge. Also, keep in mind that while in use, battery will be significantly hotter than phone/outside environment
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• LIBs like frequent partial charges/discharges more than they like full charges/discharges.
General Android power usage advice from google:
• Although this part is somewhat controversial, they do recommend having a complete, full FIRST charge to be made. If time allows, a preferred time for the first charge is 12 hours. This may have more to do with the OS than the battery.
• Battery on a Android device, in average, will last about a full day with normal use (some videos, mail, calls). That's what you should kind-of expect.
• Speaking in averages, "idling" 3G/EDGE connection (when phone is sleeping and no data is transferred through 3G), drains almost no energy. Just a little more than having 3G/EDGE radio off completely. So when no apps are using 3G, you don't need to keep it off.
• Same goes to WiFi connection - although it's on, if there is no data flowing through it, it uses almost no energy.
• At full throughput (100% data flow), EDGE is using more energy than 3G. In average, 3G is more energy-efficient than EDGE.
• WiFi is using more energy than 3G (when both are at 100% use), but since it transfers files much faster and then goes to "sleep", it's actually recommended to use WiFi whenever possible. Since it'll "sleep" more often than 3G, overall it will use much less battery than using 3G.
• Some bad apps or widgets can use android's "WakeLock", keeping CPU at 100%, screen always-on, or both. I myself have encountered such widget (I won't mention the name, it's in the market) that used a WakeLock to keep CPU spun-up at 100% all the time. That makes a huge impact on battery life. My advice - use a CPU profiling app to monitor the CPU - make sure that CPU slows down by itself when it's not used. So, beware of such widgets/apps. To check for CPU cycles, many recommend OSMonitor (free from market, install it, go to options, sort by "Load" in descending order. It'll give you "busiest" processes at the top). At rest you should be getting about 10-20% for OSMonitor itself, and 1-10% Android System. At rest, everything else should be 0-1%.
• Android slows down CPU when not in use by itself, as a built-in feature. Apps that throttle/change CPU frequency, are not necessarily needed.
All this info comes from those reputable resources I mentioned above, I didn't make any of it up.

Great info, thanks!

I'm curious where you get the 10-15% discharge warning. The articles frequently mention that the cells can die if they go below 2.4V, but they also mention that the circuitry in the batteries prevents the batteries from getting anywhere near that threshold. When the battery meter on the phone says 10-15% it is very likely not indicating "within 10 to 15% of causing serious harm", but actually indicating "within 10 to 15% of the lowest safe level that I will allow you to reach".
When you hit "0%" on the phone's meter which you must do to properly calibrate the battery, you should still be safely above the danger point, as long as you recharge the battery soon and do not let it sit for a few days or weeks. It is only when you get to 0% on the meter and then let it sit where the self-discharge can then cause it to approach the true danger levels.
Or, at least that is the way I have been reading the Battery University article for the past couple of years that I have been helping people with their Lithium Ion batteries, so please point out the text that might show a misunderstanding here as I don't want to be giving bad advice.
I typically tell people not to do regular deep discharges anyway as recharging from such a state causes more heat than a shallower recharge and the heat is one of the biggest enemies of these batteries.

Another source for Lithium Ion recharging tips from the Battery University:
http://www.batteryuniversity.com/partone-12.htm
That page focuses more on charging concerns and provides some additional recommendations...

Thanks for pointing that out, that part its a general advice of when users should plugin their phones, coming from the information of trying to stick to a half-charge (or 40%) as close as possible. Besides, google decided to warn you at a 15% level, so this seems to be a good number to use.

Another source for Lithium Ion recharging tips from the Battery University:
http://www.batteryuniversity.com/partone-12.htm
That page focuses more on charging concerns and provides some additional recommendations...
Click to expand...
Click to collapse
Thanks, indeed a great article. I decided not to include it in resources though, since it's a bit too technical for the purpose of this article.

DarkDvr said:
Thanks for pointing that out, that part its a general advice of when users should plugin their phones, coming from the information of trying to stick to a half-charge (or 40%) as close as possible. Besides, google decided to warn you at a 15% level, so this seems to be a good number to use.
Click to expand...
Click to collapse
The 40% charge is the charge level that you should "store" a battery at, not what you should keep it at when it is in use. Where do you see the 40% mark cited for any other purpose?
The 15% warning from Android is simply a warning that it is close to running out of power and may shut off if you don't go looking for a charger now. It is a practical warning to avoid the surprise of reaching 0% and shutting off when the user is not paying attention to the meter.
On the contrary, your first bullet item uses the word "BAD" in capital letters and spells doom and gloom about killing part of their battery if they go below that level. That amount of severity in that comment is completely unwarranted. It is not true and it will scare people off of using their batteries to their fullest capabilities and scare them off of doing calibration cycles when they need to do them. When the warning pops up you don't have to turn off your phone to avoid damage - just be aware that you only have 15% capacity left. And discharging to 15% and then recharging because you are scared by the advice in this thread from going lower will not recalibrate the battery meter.
Any way I look at it, your bullet item #1 is providing no value at all and could potentially scare people into non-optimal battery maintenance routines.

Alright, I guess you got a point there.
I've corrected that bullet to be less tragic =)

Excellent rewording!

flarbear said:
Excellent rewording!
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Click to collapse
Thanks for your help

Great thread man! I knew most of that stuff already but didn't know about the WiFi's effect on the battery, I always thought it drained more battery than using 3G. I also didn't know it didn't drain any battery when not in use so thanks. Guess I'll be keeping that on from now on!

jasrups said:
Great thread man! I knew most of that stuff already but didn't know about the WiFi's effect on the battery, I always thought it drained more battery than using 3G. I also didn't know it didn't drain any battery when not in use so thanks. Guess I'll be keeping that on from now on!
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Click to collapse
The Google.com/phone specs page lists 5 hours internet usage on 3G and 6.5 hours internet usage on WiFi. That doesn't necessarily make sense when looking at the graphs above because 3G idle is less than WiFi idle and 3G full is less than WiFi full, but WiFi gets data transferred much more quickly (latency is much lower and speed is much higher) so it probably spends less time in the Full state. Either way, I haven't noticed any battery life problems leaving my WiFi on all the time...

i'll never believe that wifi is worse than 3g, no matter where i read it. the last 3 years, every phone i've had lasted much longer using wifi over 3g data. 3g data just seems to annilhiate my battery. but wifi it seems to last much longer. and google's specs seem to reflect that!

RogerPodacter said:
i'll never believe that wifi is worse than 3g, no matter where i read it. the last 3 years, every phone i've had lasted much longer using wifi over 3g data. 3g data just seems to annilhiate my battery. but wifi it seems to last much longer. and google's specs seem to reflect that!
Click to expand...
Click to collapse
Yep, the dude that spoke on the conference about battery life said that although WiFi uses more battery than 3G, it takes a lot less time for it to download/process data, and then go to "sleep" of sorts. So, over a period of time, WiFi would "sleep" more than 3G, which makes it far more efficient.
I always use WiFi whenever I can (at home for example).

jasrups said:
Great thread man! I knew most of that stuff already but didn't know about the WiFi's effect on the battery, I always thought it drained more battery than using 3G. I also didn't know it didn't drain any battery when not in use so thanks. Guess I'll be keeping that on from now on!
Click to expand...
Click to collapse
+1 ... and thanx for the chart.

I didn't charge my battery all the way up before using my N1 (though I did leave it plugged in when I was using it). Was that bad for the battery?

I think of it this way, WiFi only needs enough transmit power to broadcast a couple hundred feet. 3g needs power to transmit a couple miles or more. which one seems like it would use less power? I say WiFi.

RogerPodacter said:
I think of it this way, WiFi only needs enough transmit power to broadcast a couple hundred feet. 3g needs power to transmit a couple miles or more. which one seems like it would use less power? I say WiFi.
Click to expand...
Click to collapse
There's no such thing as public wifi here, I'm lucky to get a signal anyways.
Here's from thismorning, no use:

I didn't charge my battery all the way up before using my N1 (though I did leave it plugged in when I was using it). Was that bad for the battery?
Click to expand...
Click to collapse
Nah, not really. It is recommended, but it seems that nobody can tell for sure what kind of impact it has. In my experience, I have 2 batteries - one I broke in, one I used right away... It seems that I do get a bit better battery life with the one I've broken in..

For optimal battery performance:
If you're going to be at the same place for a long time (ie at home or work for 8 or more hours), do you leave it plugged in, or charge to 100 and immediately unplug?
If unplug, how low do you let it go before plugging back in? 90%? 80? 40?

it's failure by design..

One would think by now, that after HTC put out the evo and other large screen devices they would have better batteries. Also not to mention the thunderbolts delayed release. No we waste more on extended batteries, and have no cases to protect the dam thing. I've tried all the tips out there for tweaking the battery to get max use and it still sucks. I'm still in my 14 day trail period and I'm thinking of bringing it back. I'm just pIssed companies have the nerve to do this BS!

Well take it back then. Try a blackberry out. Oh yeah those things have even worse batteries and the bis always fails.
Sent from my ADR6400L using XDA Premium App

First off I get plenty fine battery for a phone as fast as this with LTE. The large, bright screen is just a bonus. If you are getting bad battery you have yourself to blame if you would read these forums as almost everyone here is getting great battery life.
Also, your battery size complaint is terrible, the droid X has almost the same battery and runs fine as well. The LTE right now is the killer, verizon has admitted it so either switch to 4g or 3g only and stop flooding the boards with this crap.

I make it through the day no problem, and with LTE on. First few days were terrible, but things seem to have improved drastically since then.

Take it back. Threads like this show that it's not for everyone.
Example - I have a car dock, I commute, I work on a comp. all day, easy enough to charge at home. I've never had this battery life issue everyone is talking about.

miketoasty said:
First off I get plenty fine battery for a phone as fast as this with LTE. The large, bright screen is just a bonus. If you are getting bad battery you have yourself to blame if you would read these forums as almost everyone here is getting great battery life.
Also, your battery size complaint is terrible, the droid X has almost the same battery and runs fine as well. The LTE right now is the killer, verizon has admitted it so either switch to 4g or 3g only and stop flooding the boards with this crap.
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Click to collapse
uhhhhhh what? The majority says the battery sucks. Where have you been?

mojonation1487 said:
uhhhhhh what? The majority says the battery sucks. Where have you been?
Click to expand...
Click to collapse
I have read WAY more posts about good battery life than I have bad. Where have you been? Yes, there are occasional posts about it but the vast majority after a little bit of tinkering have said good battery life.
My personal experience.
Took my phone off the charger at 96%. Used the GPS on a hour drive, sending texts and listening to music the whole way. Ate some dinner while continuing to send texts. Went to a hockey game and took ~30 Pics. Used the GPS to get back home with music and finally put the phone back on the charger. Time off charger 7 hours. Battery percentage 82%. Only 14% decrease with what I would say is some pretty moderate use.

One thing I actually thought was funny is I pulled out an old Sammy flip phone to see what size battery it had. 1100 mah. 5 years ago they were shipping dumbphones with 1100 mah batteries. Come to present day, a phone with 4G, a 1 ghz processor, and a ginormous lcd screen has a bump of 300 mah. Is something wrong with that?
Sent from my ADR6400L using XDA Premium App

miketoasty said:
First off I get plenty fine battery for a phone as fast as this with LTE. The large, bright screen is just a bonus. If you are getting bad battery you have yourself to blame if you would read these forums as almost everyone here is getting great battery life.
Also, your battery size complaint is terrible, the droid X has almost the same battery and runs fine as well. The LTE right now is the killer, verizon has admitted it so either switch to 4g or 3g only and stop flooding the boards with this crap.
Click to expand...
Click to collapse
I don't want to sound like a jackass, but I bought a 4G phone, not a 4G phone I need to use in 3G so I can make it through the day. In the end I just bought the extended battery. Solved all my woes.
Sent from my ADR6400L using XDA Premium App

If I can figure out how to go 22 hours with 43% remaining on my phone with moderate to heavy use, than sure as hell you should be able to get at least 12-15 hours out of the phone, not knowing half of what I know.
cause that is all that matters right, making it through the day for how long your awake, so for most people 12-15 hours, then you are home and can plug it in.
who cares if you make it home and plug it in at 5%, it still lasted you all day.

I've done the 5 tips for better life, and thou it has a improved.... its a minor improvement. the phone is with out a doubt sweet, im just pissed bc i cant get a full day out of it. i work for 8 hours and leave the friggin thing in airplane mode, then on my way home i listen to music with it still in airplane mode subway kills it mad quick....i do and dont wanna bring it back i want the newest thing out, im coming from a OG moto droid.. 50-60 bucks for a goddamn battery that makes your phone last longer and turns it into a potential weapon...data/voice together is the only feature right now that is making it hard for me to decide if i should bring it back or not.. i got it this past Saturday i have 8 more days to decide, not to mention vzw wants the 35 dollar restock fee now. who remembers when they had the 30 day test run??? lmao they stop doing it because people kept bringing phones back within the period...

my phone definitely lasts me the day, but i don't think it would last the 10 to 15 hours that others are reporting. i already turned the brightness down to about 25 - 30 percent, turned off unnecessary widgets and sync'ing plus i set setcpu to throttle the cpu down to lowest speed when the screen is off. as such, i'd like to know what others are doing to squeeze so much battery time out of their TBs.

Custom Rom and Kernel seemed to help my battery life a ton. I can now easily make it all day with moderate to heavy use on stock battery. From the battery monitor, it looks like the screen will eat the most power, be sure to keep it set low. The underclock/volt while screen is off uses hardly any batter power and is really nice as well.

I'm getting awesome battery... My phone has been up for about twelve
Hours now and I still have about 45 percent... Heavy usage texting music internet and xda posting.
Sent from my ADR6400L using XDA App

TBJared said:
Custom Rom and Kernel seemed to help my battery life a ton. I can now easily make it all day with moderate to heavy use on stock battery. From the battery monitor, it looks like the screen will eat the most power, be sure to keep it set low. The underclock/volt while screen is off uses hardly any batter power and is really nice as well.
Click to expand...
Click to collapse
On all Android devices the screen is the battery eater, except on 2.0/2.1 with Exchange Sync issues... then it could hang and eat the battery.

I've never really had an issue with battery life. That's not to say my battery lasts longer, i just use different methods to keep my devices alive.
AA USB chargers have always been a good friend of mine, as well as plugging my phone into my laptop while it's in my backpack.
I can't wait for an external battery charger to come out for the TB, then you just have 2 or 3 batteries and swap them out as needed.
But if you're expecting more than 8 hours or so off of one charge they're right, you may look for another device

Yah man, 3 hours of navigation, with music going, many calls, 3 hours of internet use, txt & talk and LTE and 3G switching through out all day because of traveling . I was really heavily using the phone with an extended battery but made it just over 24 hours... Try trading it in for another battery. Your not Wifi tethering all day as home network are you?

hammer4203 said:
Well take it back then. Try a blackberry out. Oh yeah those things have even worse batteries and the bis always fails.
Sent from my ADR6400L using XDA Premium App
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I'm not sure what you're talking about. Blackberries are known for having excellent battery life. I had 12 hours 40 some odd minutes and was at 69% last night when i plugged my TB in to charge. I really don't understand the problem.
edit: proof, this was a few hours before i plugged it in.
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Stop whining about the phone. If you don't like the phone, take it back. No one here is forcing you to keep it.
Sent from my ADR6400L using XDA App

howtodoo? said:
One would think by now, that after HTC put out the evo and other large screen devices they would have better batteries. Also not to mention the thunderbolts delayed release. No we waste more on extended batteries, and have no cases to protect the dam thing. I've tried all the tips out there for tweaking the battery to get max use and it still sucks. I'm still in my 14 day trail period and I'm thinking of bringing it back. I'm just pIssed companies have the nerve to do this BS!
Click to expand...
Click to collapse
You bought a device with a 4.3" screen and a brand new radio technology. Honestly, what did you expect.No phone out there with a screen that large has what could be considered great battery life. Sure some are better then others, but these are not BB devices. And while we are at it, lets be realistic here... if they put in a bigger battery you would be in here complaining about how large and how heavy the phone is.... You can't have everything, something has to give at some point.

[Q] Real World Battery Life

Fellow MT4GS users,
How is your battery lasting you? I'm coming from a MT4G, even though I eventually modded it, and it I used to get at least a full day and have to charge that night at the worst unless I really heavily used it.
My MT4GS has been lasting me half a day or so before I get into the yellow/red and I'm usually charging before the sun goes down.
My main culprit according to the built in battery indicator is display at 65% (I'm on automatic brightness)
Just over 10 hours today for me before I had to charge.
ps- Anyone know how to remove the annoying low power notifications? I'm getting two pop ups in a row.

Yeah mine generally lasts about 14 hours at moderate usage, but it's only been 2 days, and I remember when I got the MyTouch 4G it died on me while I was still at work and then after a week or so it got much better...

Yeah, I can agree with you there I think my MT4G was a little wonky the first week or so. We'll see how it goes.

breakaway87 said:
Fellow MT4GS users,
How is your battery lasting you? I'm coming from a MT4G, even though I eventually modded it, and it I used to get at least a full day and have to charge that night at the worst unless I really heavily used it.
My MT4GS has been lasting me half a day or so before I get into the yellow/red and I'm usually charging before the sun goes down.
My main culprit according to the built in battery indicator is display at 65% (I'm on automatic brightness)
Just over 10 hours today for me before I had to charge.
ps- Anyone know how to remove the annoying low power notifications? I'm getting two pop ups in a row.
Click to expand...
Click to collapse
Only lasting 6 hours yesterday ....

My battery lasted about 33 hours. After the 1st full charge. So way better than my other phones have done. This wasnt heavy usage though. No videos or music just a few calls, lots of emails and some web browsing.
One problem I am having is low call volume. My videos and music are perfectly loud, just the call volume sucks.

AZScrewloose said:
My battery lasted about 33 hours. After the 1st full charge. So way better than my other phones have done. This wasnt heavy usage though. No videos or music just a few calls, lots of emails and some web browsing.
One problem I am having is low call volume. My videos and music are perfectly loud, just the call volume sucks.
Click to expand...
Click to collapse
how did you get 33 hours because mine on the 1st day on lasted about 10 hours.

I'm getting 6 hours. Its terrible. This things gonna get flushed down a toilet soon.

NAZology said:
I'm getting 6 hours. Its terrible. This things gonna get flushed down a toilet soon.
Click to expand...
Click to collapse
Well make sure, your phones screen brightness is on low. Also make sure wifi,gps,bluetooth are off. Also make sure you kill some of the apps you ran on a task manager. just gotta find ways to keep the battery life up.

Well when I first got the phone, I didnt charge it until it was almost dead. Then fully charged it.
Also I turned off GPS, WiFi ect. I also use task manager to kill background programs that I don't need or want running.
We will see if the battery life goes down after a few weeks. Sometimes they take time to normalize.

Oh what task you ended and what task manger you used?
Sent from my myTouch 4G Slide using XDA App

sonicjam said:
Well make sure, your phones screen brightness is on low. Also make sure wifi,gps,bluetooth are off. Also make sure you kill some of the apps you ran on a task manager. just gotta find ways to keep the battery life up.
Click to expand...
Click to collapse
I appreciate the help but the logic is off. This is the latest ..and i stress smartttphone. It is supsupposed to be used as such. Bluetooth ..4g..music...video calling..maps..etc.. if u use of of these features six hours it will last. If you use them all try maybe 4 hours. Plus those boxes are annoying when the batterly is low. This phone has got to be rooted.

fireinthesky2night said:
I appreciate the help but the logic is off. This is the latest ..and i stress smartttphone. It is supsupposed to be used as such. Bluetooth ..4g..music...video calling..maps..etc.. if u use of of these features six hours it will last. If you use them all try maybe 4 hours. Plus those boxes are annoying when the batterly is low. This phone has got to be rooted.
Click to expand...
Click to collapse
I'm gonna have to agree with that one, that's pretty much no different than saying buy a car but don't drive it so you can save gas lol

I have gotten to around 12 hours or more now. Still moderate overall but heavier browser usage.
I do not kill tasks or turn off wifi, gps or anything. My brightness is auto.
I uninstalled the recent maps update because I saw where G2 users seem to think the recent update is draining their battery so I wondered if it could maybe be causing issues here too.
Anyways my battery life has gotten into the acceptable range and that was all I really did other than have more days to monitor it.

Some technical specs on the battery:
Model: BG58100
Rating: 3.7V DC
Charge Capacity: 1520mAh
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This appears to be the same battery that is in the Sensation 4G according to Google.
For us this is good because Ebay and Amazon are already flooded with replacement batteries.
We need to find a higher capacity mAh battery but with the same size as to not make us have to get a replacement back. This shouldn't be that hard.
My old phone has a smaller battery with a higher mAh capacity so the battery in the myTouch 4G Slide is an utter disappointment. They could have easily produced a 3000 mAh battery for this beast of a phone.
Edit: Found a 1900 mAh battery for only 9.99.

sonicjam said:
Well make sure, your phones screen brightness is on low. Also make sure wifi,gps,bluetooth are off. Also make sure you kill some of the apps you ran on a task manager. just gotta find ways to keep the battery life up.
Click to expand...
Click to collapse
Screen is on the least bright setting. I'm an ex blackberry user and dont even have one app. I could care less about apps. I'm charging every 5 hours and thats sometimes from just it sitting around/ not even using the phone. The thing better get it's act together. I'm starting to like the keyboard too but I'm up at 5am and if im charging at noon that's terrible. Especially with minimal use.

Akujin said:
Some technical specs on the battery:
Model: BG58100
Rating: 3.7V DC
Charge Capacity: 1520mAh
This appears to be the same battery that is in the Sensation 4G according to Google.
For us this is good because Ebay and Amazon are already flooded with replacement batteries.
We need to find a higher capacity mAh battery but with the same size as to not make us have to get a replacement back. This shouldn't be that hard.
My old phone has a smaller battery with a higher mAh capacity so the battery in the myTouch 4G Slide is an utter disappointment. They could have easily produced a 3000 mAh battery for this beast of a phone.
Edit: Found a 1900 mAh battery for only 9.99.
Click to expand...
Click to collapse
I've found the slide version there too for $11.99. I've wonder how long it will last with that battery.
http://cgi.ebay.com/Anker-1900mAh-B...Accessories&hash=item4aad15c501#ht_3648wt_942

There must be something wrong. Mine lasts about that long playing videos and games, messing with the camera, web browsing etc..
Sent from my myTouch_4G_Slide using XDA App

As I posted in my other thread, battery sucks on this phone. I had to keep wifi off all the day to keep it from dying by 6pm. Funny how 4g speed is so bad in nyc that wifi is the only other option to do something meaningful.

eismcsquare said:
As I posted in my other thread, battery sucks on this phone. I had to keep wifi off all the day to keep it from dying by 6pm. Funny how 4g speed is so bad in nyc that wifi is the only other option to do something meaningful.
Click to expand...
Click to collapse
Weird I live in small city and 4G is crazy fast. When I get to a big city like Baltimore, Maryland the 4G was slow. My thoughts are there too many people on the 4G network. T-Mobile did promised us double the 4G speed and they need more Towers too.

~
For the first couple days, my battery life was awful. I'd be getting low-bat notifications when I got home from an 8-hour day at work.
But of course that's always the case with new phones that haven't even had the settings tweaked...
- Placed a Wifi toggle widget on the homepage and turn it off every day after leaving home for work in the morning.
- Ensured certain programs and updates were not running in the background automatically:
~ Turned off Autosync on accounts (manual only)
~ Turned off autoupdates for weather
~ No Bluetooth, GPS, Wifi, unless turned on for a specific reason
~ Enabled power efficiency and power saver modes (30%)
~ Disabled Always-on data connection
~ Disabled auto-updates in various apps (Friendcaster, IM+ Pro, etc.)
- Turned the screen off when not in use
Today I'm at 40% after 14 hours of mixed use. I'd say that's DAMN good.
By the way, for those seeing the whole "Autosync off" thing and thinking that you can't do it, just do it. I don't get my work email or personal email on my phone unless I tell it to and it's utterly awesome. Less stress. Less looking at my phone constantly. It feels free and just plain great. And I used to be superconnected 24/7 syncing every 5 minutes (if push wasn't available).

Thunderbolt lives, READ ME.

Many people have argued that since the thunderbolt has not been updated with gingerbread that it will die out and be worthless. I'm here to tell you that is not the case at all.
Those with the bolt will tell you that their main problem is the battery life. This is exactly right but I have setup my phone that allows my phone to last for days without a charge. Also this does not require you to root your phone, so this will work for everyone and silence all the retarded people who keep posting that its dead. The two biggest factors is of course 4G and the display that eat the battery most.
Make no mistake about it tho, HTC implementations along with the hardware on this baby still takes the cake for flagship of Verizon.Don't be fooled by the dual core hardware, good in theory but let's face it phones aren't their yet, apps don't need two cores but more RAM would be nice.
Read this if you want your phone to live. I have reached 60+ hours unplugged, I am an IT network manager, I know stuff so leh dew it.
1. Get the extended battery. No matter what type of Android phone you have you are going to need it, especially without gingerbread. This is 4GLTE inside a laptop, do those last more than a few hours? ill answer for you, NO.
2. Disable what you don't use. This is why widgets were made to disable data, WiFi, Bluetooth, GPS, etc. when not in use. Get a new brightness widget by curvefish set it to 25% and as well as turn off the animations if you really want more improvement. Disable always-on mobile data, as well as roaming, and manage your email accounts so they sync manually. As far as location goes just use Google services, GPS standalone is a drainer.
3. Create setting shortcuts on the home screen. Add accounts and sync so you can disable auto sync and background data. Background data is only used for the market learn to disable it fools. Add a shortcut to running services as well to keep the RAM usage to a minimum.
4. A main issue always discussed is the bloatware app of blockbuster. Make sure you enter the program and disable automatic movie updates. Then go to running services and disable both instances of PVMtpservicestart and PVWmdrmService. You will have to do this every time you REBOOT but not fast boot.
5. For gods sake, don't be a fool any longer! HTC gave you some of the best widgets but use them wisely...just because you have 6 screens doesn't mean use them all. One widget app that will be loved by all is widgetsoid, extremely useful. Even the HTC clock has separate animations that can be disabled if needed.
6. NEVER by any means should you use any type of juice defender or task killer. It does more harm than good even with Android Froyo 2.2 can still manage this. Download apps such as battery indicator tht shows your battery in increments of 1% and doesn't use any resources in the background. Don't be the fool that gets apps cus they are cute and have no use, you are better than that, atleast I'd hope so..
7. Apps that will ultimately benefit you are things like GO SMS Pro ( since the stock messaging constantly lags and freezes), Astro file manager, Androidzip, LTE On and Off in order to make sure your always using your 4G data only. And of course Uninstaller by rhythm software, Poynt one of the best find anything anywhere app and definitely Documents to Go from which I'm typing on now.
8. Sounds and keyboard is up next. Many like to use haptic feedback or sounds when you click things or type. However, use one or the other it may drain a bit of battery but its not a killer. Whatever floats your boat in that one but as far sounds go try and use either sound notifications or vibrate not both at the same time. Disable all LED notifications and allow yourself the satisfaction of being free of the annoying blinking light.
9. Charging the battery. Who would have thought that it would be important, but yea fools it is. The best way is to let your battery drain down to 5%, restart, then go for a full charge. But once that green light shows up you need to unplug it or else the battery gets angry at you and will decrease the power of the charge and ultimately ruin your battery faster.
10. As far as using different themes and wallpapers it honestly doesnt matter just stay away from the live wallpapers. We all know that touching the pond and making it seem like we just threw a rock in the water can be amusing but completely pointless. It has been reported that gingerbread is coming in Q3 of this year either this month or next, but we all know that could be bs.
When all said and done you will love the improvements and the fact that you didn't have to root your phone will put your mind at ease. I just wanted to share my knowledge of this phone to others to show and prove the fact that this phone is capable you just need to be proactive. Android is a perfect OS for smartphones, Linux like qualities, and strong structures that could really last. Any questions or concerns you can always message me. I just hope some one reads this and actually tries what I have successfully configured.
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Well then I regret that 20 mins it took to write
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Save your pennies and buy an extended battery. No question. Bought one two days ago. Never even come close to this on any ROM. Finally I no longer have to carry a charger in my pocket.
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mathers53 said:
Well then I regret that 20 mins it took to write
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Click to expand...
Click to collapse
Don't get me wrong. I appreciate the effort but there are so many threads that say the same thing.
The methods are not new. There are countless videos on YouTube that say this.
In theory if you're on XDA, you know a thing or two about kernels. I can get a full twelve hours on my standard battery with the right kernel with moderate use and nothing turned off.
If people want a phone to last for days, they're being ridiculous. That's why they have home and car chargers.
Sent from Synergized Thunderbolt via the XDA Premium App

tl;dr
But according to other posts, I'm guessing it is about battery life...
As stated before, get the extended OEM 2750, I constantly pull 40+ hours out of it.

Everyone has their own version so your right its just repetition but it seems like others need a reminder. On my stock battery I can get 32 hours outta this phone. For IT guys like me its what I need from a phone like this.
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OP's rant has all been said before (maybe not in one post) and will be said again before the last Thunderbolt user leaves the forum. I guess it needs said every so often so someone doesn't forget, I suppose.

Point 9 is completely wrong. Lithium polymer batteries are nothing like nickel-cadmium batteries, and neither is the charging method. Li-on and Li-po batteries are NEVER trickle charged in an HTC device, or any device for that matter, unless they have been user-modified. It's also completely impossible to over-charge virtually all Li-on batteries because internal circuitry prevents this. An overcharged Li-on presents and extreme explosion hazard. The act over attempting to overcharge one presents an even greater risk of explosion because as the battery reaches capacity the heat generated inside the cells ramps up sharply. Some charge techniques actually use this sudden ramp up in temperature to determine a fully charged state, that's how precise it can be. But HTC devices, and cell phones in general, do not use this technique. Instead, they take advantage of another characteristic of the battery. As the battery charges, it's voltage output and resistance increase. At the fully charged point, the resistance increases sharply and this tends to be less dependent on cell temperature which makes this method more reliable. Upon reaching this point, charge current is shut off, not reduced. Charge is allowed to bleed off through discharge down to 90-95% before charge current is again applied. The only thing that really reduces the life of a battery, defined as reducing it's number of charge cycles, is storing the battery with a full or empty charge. A Li-on battery can be stored for very lengthy periods with roughly a third of a charge though.

I've jus liked the xda forums a lot cus it seemed everyone would be mature n want ideas to keep flowing. Jus tryin to help, a phone like this can't be fixed in one paragraph I thought we all knew that.
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I think it's good to know what others do to save battery life, especially on this phone. Only problem that I have is having to limit features of the phone. For example, why have such a big beautiful screen when you have to keep it dim to save juice? I'm not a fan of having to cripple your phone to get a days use out of it.
But +1 to the op for the advice. Always interested in other people's setup.

Keep this topic on track everyone, bans will be issued from now on for flaming, off topic garbage posted no exceptions

I bought the TBolt for its ability. Turning off all that ability seems counterproductive to me. So instead of turning everything off, I carry 2 extra batteries when needed. I get 5-6 hours of use out of my phone, flip batteries and continue on. No extended battery fat azz, no being tied to a charger. By the time 1 dies, the other is charged and another just in case. Works out well.
to each their own.

mathers53 said:
Many people have argued that since the thunderbolt has not been updated with gingerbread that it will die out and be worthless. I'm here to tell you that is not the case at all.
Click to expand...
Click to collapse
of course were getting GB, i always new it would be towards the end of summer or fall. who ever said the phone would die out? it took the evo almost a year to get it.

While I certainly applaud and respect the OP's position, I refuse to neuter this phone by turning everything off and making it a dumb phone.
I chose this phone due to the speed and features....turning off that just seems backwards.
Battery technology needs to make a jump, it's the hold up.
These phones should have 3000mah and NOT have a fat, rounded hump on back.
sink it into the phone..
The only thing I turn on and off with a widget is bluetooth.
I don't have the time to toggle between 3/4G, turn GPS on/off, etc.

loonatik78 said:
Point 9 is completely wrong. Lithium polymer batteries are nothing like nickel-cadmium batteries, and neither is the charging method. Li-on and Li-po batteries are NEVER trickle charged in an HTC device, or any device for that matter, unless they have been user-modified. It's also completely impossible to over-charge virtually all Li-on batteries because internal circuitry prevents this. An overcharged Li-on presents and extreme explosion hazard. The act over attempting to overcharge one presents an even greater risk of explosion because as the battery reaches capacity the heat generated inside the cells ramps up sharply. Some charge techniques actually use this sudden ramp up in temperature to determine a fully charged state, that's how precise it can be. But HTC devices, and cell phones in general, do not use this technique. Instead, they take advantage of another characteristic of the battery. As the battery charges, it's voltage output and resistance increase. At the fully charged point, the resistance increases sharply and this tends to be less dependent on cell temperature which makes this method more reliable. Upon reaching this point, charge current is shut off, not reduced. Charge is allowed to bleed off through discharge down to 90-95% before charge current is again applied. The only thing that really reduces the life of a battery, defined as reducing it's number of charge cycles, is storing the battery with a full or empty charge. A Li-on battery can be stored for very lengthy periods with roughly a third of a charge though.
Click to expand...
Click to collapse
+1 on this. He is absolutely correct on this point. Anyone who is into RC anything that uses Lipo's knows this as well.
The reason Toyota does not use Lipo batteries in their Prius' (even through they pack more power in a smaller package) is because of the extreme fire hazard from overheating lipo batteries by trying to "overcharge" them. They are afraid people will try and modify the charging systems to "squeeze" more juice out of them and catch fire.

loonatik78 said:
Point 9 is completely wrong. Lithium polymer batteries are nothing like nickel-cadmium batteries, and neither is the charging method. Li-on and Li-po batteries are NEVER trickle charged in an HTC device, or any device for that matter, unless they have been user-modified. It's also completely impossible to over-charge virtually all Li-on batteries because internal circuitry prevents this. An overcharged Li-on presents and extreme explosion hazard. The act over attempting to overcharge one presents an even greater risk of explosion because as the battery reaches capacity the heat generated inside the cells ramps up sharply. Some charge techniques actually use this sudden ramp up in temperature to determine a fully charged state, that's how precise it can be. But HTC devices, and cell phones in general, do not use this technique. Instead, they take advantage of another characteristic of the battery. As the battery charges, it's voltage output and resistance increase. At the fully charged point, the resistance increases sharply and this tends to be less dependent on cell temperature which makes this method more reliable. Upon reaching this point, charge current is shut off, not reduced. Charge is allowed to bleed off through discharge down to 90-95% before charge current is again applied. The only thing that really reduces the life of a battery, defined as reducing it's number of charge cycles, is storing the battery with a full or empty charge. A Li-on battery can be stored for very lengthy periods with roughly a third of a charge though.
Click to expand...
Click to collapse
Thanks for posting this, you saved me the time of posting something very similar.

U may have helped someone out there by this
Sent from my SICKLY INFECTED VirusBolt Synergy 3.0 using XDA Premium App

RC anything battery 4 hr. Charge barely 15 min run time.
Sent from my ADR6400L using XDA App

fixxxer2008 said:
of course were getting GB, i always new it would be towards the end of summer or fall. who ever said the phone would die out? it took the evo almost a year to get it.
Click to expand...
Click to collapse
More like 6 months since it came out in may, but I don't think is HTC fault more like Verizon most of their all phone don't have gingerbread and sprint got the evo shift, the evo 4G and even the damn echo with gingerbread already

I still don't see how its possible to get 40+ hours even with the extended battery. I'll be lucky to get 24. I do use my phone heavily tho so that may be why idk -.-
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[Q] does this look normal for Battery use?

So I just got this thing as an alternate exchange for the mytouch 4g and I like the phone .. but the battery on this one suuucks. It drops ABOUT 10% an hour and I havent really used the phone much at all.
When I look at the battery stats it looks weird to me .. the screen is always the lowest thing using the power by a lot, and its ALWAYS the system idle and standby that use the most battery by far .. which seems kinda backwards to me .. I dont know .. so thats why im posting this here.
My battery seems to only last bout 10 hours or so with light usage... which is way worse than any other phone I have had which is the mytouch 4g and the Galaxy S II.
Today I have sent 2 sms and recieved 2 sms and have no calls at all. I did check facebook Three times to see some posts so a few minutes there. The screenshot is from today and Im already under 50%. I havent turned on the wi-fi. GPS is off and I do not use bluetooth at all. I also have the screen brightness at 25% and this is with a normal clock speed as well. I have turned on the screen several times just to look at stuff... but that doesnt explain the 3% screen usage and the freaking 48% of standby and idle.
someone thought battery .. but I dont think so with how the phone is saying that the usage is spread out. Does the screen on this phone really use that little power and the idle and standy drain the battery like that???
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Each person's phone will have different statistics. Different ROMs and kernels will give different results and the kind and number of running apps. Those percentages don't indicate the amount of drain (current) each one is using from the battery. Are you using a battery management app to keep the battery drainage minimum?

Core Memory said:
Each person's phone will have different statistics. Different ROMs and kernels will give different results and the kind and number of running apps. Those percentages don't indicate the amount of drain (current) each one is using from the battery. Are you using a battery management app to keep the battery drainage minimum?
Click to expand...
Click to collapse
I am not using anything like jusice defender .. I do kill the services in the background a few times a day with system panel app. i am running CM 7 on here .. so im sure a lot of others are as well.
since im new to the phone im not sure if this is normal or not for it to die this past without it really being used much. system panel did say that a few apps used battery .. but one was at like 8% and the others were well below that.

Try using Weapon 3 with Faux123 kernel.
http://forum.xda-developers.com/showthread.php?t=1329671&highlight=faux123-0.1.3
Weapon 3 from here:
http://forum.xda-developers.com/showthread.php?t=1207125

Strapt said:
I am not using anything like jusice defender .. I do kill the services in the background a few times a day with system panel app. i am running CM 7 on here .. so im sure a lot of others are as well.
since im new to the phone im not sure if this is normal or not for it to die this past without it really being used much. system panel did say that a few apps used battery .. but one was at like 8% and the others were well below that.
Click to expand...
Click to collapse
Got to remember it is dual core and will use more battery power.

My current stats after only 11 hours of use:
Battery level: 12%
Cell standby: 34%
Phone Idle: 33%
Wi-Fi: 31%
Wi-Fi Calling: 3%
Display: 2%
Haven't used my phone for most of the day. I sent 3 or 4 text messages, and was only away from my apartment for 30 minutes. BUT, this is shortest amount of battery i've ever seen this thing suck up. I usually range between 16 to almost a whole day before having to plug in, and that's with my being away from the house and browsing on data for about an hour and a half (2 breaks and my lunch).
I think the phone has it's own mood swings, lol. At least it charges pretty quickly!

I have had lots of variability in battery life between different copies of the g2x and different roms. I have tried almost all the roms on these forums.
My personal experience is that there are good and bad versions of the g2x out there. The bad ones tend to overheat and shutdown. These naturally have poor battery life.
Also, I have noticed that the g2x does not handle areas of poor mobile reception well. It tends to drain battery and overheat in these instances as well.
Finally, I have found LG 2.3.4 based Tsugi (with stock kernel) is far and away best for battery life. Might be improved code from LG, might be the baked it toggle2g app... but I am very happy with this phone under Tsugi.

oh wow .. i will have to try some different ROMs then it sounds like and see if that helps

GTWalling said:
Got to remember it is dual core and will use more battery power.
Click to expand...
Click to collapse
absolutely .. but I also have a Galaxy S II and it uses nowhere near the battery as this thing does at all .. and usually the display is what uses the most power and idle and stanby are what uses the least .. and the G2X is opposite of that . which doesnt make sense to me cuz if its idle the the screen is off and I have it underclocked with screen off .. soo I dont know why that would be using so much battery.

matrix0886 said:
My current stats after only 11 hours of use:
Battery level: 12%
Cell standby: 34%
Phone Idle: 33%
Wi-Fi: 31%
Wi-Fi Calling: 3%
Display: 2%
Haven't used my phone for most of the day. I sent 3 or 4 text messages, and was only away from my apartment for 30 minutes. BUT, this is shortest amount of battery i've ever seen this thing suck up. I usually range between 16 to almost a whole day before having to plug in, and that's with my being away from the house and browsing on data for about an hour and a half (2 breaks and my lunch).
I think the phone has it's own mood swings, lol. At least it charges pretty quickly!
Click to expand...
Click to collapse
see yours looks like mine does . except I didnt have the wi-fi on .. so maybe this is typical for this phone to use so much battery when its not doing anything. i just cant imagine how the screen uses so little battery though and the idle so much.

matrix0886 said:
My current stats after only 11 hours of use:
Battery level: 12%
Cell standby: 34%
Phone Idle: 33%
Wi-Fi: 31%
Wi-Fi Calling: 3%
Display: 2%
Haven't used my phone for most of the day. I sent 3 or 4 text messages, and was only away from my apartment for 30 minutes. BUT, this is shortest amount of battery i've ever seen this thing suck up. I usually range between 16 to almost a whole day before having to plug in, and that's with my being away from the house and browsing on data for about an hour and a half (2 breaks and my lunch).
I think the phone has it's own mood swings, lol. At least it charges pretty quickly!
Click to expand...
Click to collapse
I could be wrong but I think the % is based on the time and not the battery.
Cell Standby 34% of the 11 hours = 3.74 hours on not 34% of the battery. If your total all your numbers together it would be 103%.

GTWalling said:
I could be wrong but I think the % is based on the time and not the battery.
Cell Standby 34% of the 11 hours = 3.74 hours on not 34% of the battery. If your total all your numbers together it would be 103%.
Click to expand...
Click to collapse
You are correct GTWalling. Those figures are based on how much time each event is using the battery, NOT How much battery each event is using.

panowolf said:
You are correct GTWalling. Those figures are based on how much time each event is using the battery, NOT How much battery each event is using.
Click to expand...
Click to collapse
If you knew how much current (milliamps) each event/process is using then you could calculate how much of the battery's capacity it uses by taking the total time X percent of time battery used X milliamps. The battery is supposedly 1500 milliamp-hours. milliamps used/1500 milliamps X 100% = percentage of battery used by that event/process.

Core Memory said:
If you knew how much current (milliamps) each event/process is using then you could calculate how much of the battery's capacity it uses by taking the total time X percent of time battery used X milliamps. The battery is supposedly 1500 milliamp-hours. milliamps used/1500 milliamps X 100% = percentage of battery used by that event/process.
Click to expand...
Click to collapse
You have fun with that.

Hmmm interesting stuff here ... Thanks for the replies.
Sooooo if that's not how much battery they are using then is there a real good app to see what apps or system apps are using the battery?
I have looked at the market but none looked very good.thanks
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I easily get 20 hours on stock
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