yashsingh1/xdaforums huggingface dataset:
[T-Mobile LG G2x] DebauchedSloth:
That's it in a nutshell. The problem isn't that the phone is or is not using a lot of battery, the basic problem is that the battery driver is an utter disaster. I don't believe it is giving anything like correct readings (one example - left the phone on Wifi but screen off for 12 hours, it went from 100% to 91%, then I reboot and it reads 59%. Eh?)

There have been various hacks - which are in most of the current third party kernels. They are nowhere near solving the problem.

So go ahead, enable this, disable that, kill this, don't kill it - some will appear to show battery improvement for some, not for others, etc, because the battery driver is not giving good readings. It's all a crap shoot since nobody can measure what is going on with any confidence.

What's really worrisome is that I had a battery go bad. It suddenly started getting REALLY REALLY hot. I've seen this reported elsewhere.

Now, was that a bad battery?

Or was it that the driver is just such a piece of crap that it overcharged it?

I'm thinking it was the latter, and that's freakin' scary since over-charging LION batteries is a recipe for disaster. Literally.
[T-Mobile LG G2x] mr.orange303:
I also go into manage apps and force stop all kinds of stuff.

Manage apps in settings.

Improved the battery alot.
[T-Mobile LG G2x] mr.orange303:
Avoid task killers. Use app managers.

Active apps is a good one.
[T-Mobile LG G2x] raz1337:
Thanks a lot for the helpful information. I'll just use the stock application management and disable popups on the keyboard. It's annoying. It just seems like this phone has the potential to be a gift from God if the battery issue could just be fixed. It's only been a month.

I know I keep comparing it to my Touch Pro 2, but it's like comparing apples and oranges even development wise. I was running Energy on my TP2, one of the most highly respected roms that had over a year at least of development after the phone itself had been out since what, 2009? That's 2 years of optimizations. I don't really want to get more batteries but I'm willing to buy a second usb cable to charge the phone in my car as well as at the end of the day on my laptop.

Even if I go back to T-Mobile and manage to switch, I lose the things I switched to this phone for.
[T-Mobile LG G2x] donbeth:
Update:

The new battery seems worse! Today the battery level dropped from 100 to 87% in about 2 hours and I didn't make any calls! No web use only read a few emails and sent a couple of txt messages!

Also, now at Client site and the signal quality is very poor. It was not like this on my previous Sprint phone.

Seriously thinking of asking for a different phone.
[T-Mobile LG G2x] greengoldmello:
I feel your pain. This makes me apprehensive to get another G2x as i sold the other to get rid of the horrid battery life....
[T-Mobile LG G2x] raz1337:
I switched to from Gingerbread to Froyo and I feel like lately I can screw around on Youtube and such more on my lunch breaks without the battery taking a nosedive.
[T-Mobile LG G2x] csdalporto:
Just freeze all bloatware, that's what fixed battery drain for me....this whole post is useless
[T-Mobile LG G2x] rvdangel630:
this is how i got rid of my battery drain problem.

i first rooted and backed up my rom.

then i flashed stock rom.

install titanium and you want to uninstall these

voice dialer

talk 1.3

telenav gps

qik video chat

voice search

then reboot. i stayed on stock rom because right now flashable roms are not stable enough for me. let your battery drain until it shuts down, then recharge too 100%.

install setcpu and use this profile

screen off 312/216

minimal use- 24hrs

medium use( texting, calls, some gaming, music etc around 10-11 hrs

heavy use( modern combat online with wifi, texting,calls, streaming shows and movies 6-8hrs

i will post pics later for proof.
[T-Mobile LG G2x] Marco1707:
Has anyone used Bloatfreezer to freeze bloatwave running on stock 2.2.2? I did and this has improved my battery 10 fold. I am able to get through the day with moderate to heavy usage.
[T-Mobile LG G2x] Mikeglongo:
SetCPU is a pay for app correct?
[T-Mobile LG G2x] SaHiLzZ:
Exclusive for XDA membersL: http://xdaforums.com/showthread.php?t=505419
[T-Mobile LG G2x] ashman3000:
ever since i moved to a gingerbread based ROM: Bionix and also running Juice Defender, i am getting 24 hrs battery life.
[T-Mobile LG G2x] donbeth:
I've read this a number of times. But what if I want telenav? The voice quality is superior to Google. What if I want voice dial and video calls? In fact the video call is one reason I bought an android because my wife has the mytouch. Although we have yet to try it. It just seems odd to say delete apps to save battery.
[T-Mobile LG G2x] rvdangel630:
then enjoy the phone as it is. i myself don't use those things. so to people that don't use it by all meens do it.

btw i'm gonna add pics later today.
[T-Mobile LG G2x] regP:
Some apps are poorly coded and have problems with memory leaks and increased power consumption. If you dont use those apps it makes perfect sense to get rid of them. If you do use those apps and arent having issues with them than no action is required. However, there often is a another app in the market that doesnt the exact same thing but without the problems.
[T-Mobile LG G2x] heat23:
I have a G2x from the April 26th batch and the only battery problem is when I am in a low signal area (at work). Here the battery lasts about 8 hours.
[T-Mobile LG G2x] donbeth:
Two things have extended my battery. I changed the network mode to WCDMA only. That seemed to extend the battery life. Not a huge difference but better. I removed my task killer. That seemed to help a small amount. Difficult to to say for sure. Next, I installed Juice Defender and that, with the other things have helped a lot! One day I had little use on the phone and by 6pm I still had 60%. Another day I had much more use and by 7pm I had 30%. Still not great and I have not real documented results. But this, to me, is encouraging.
[T-Mobile LG G2x] daganb:
Step one: Root phone and install rom manager

Step two: Install CM7 build 54 + (The g2x CM team has fixed the battery readings)

Step three: Install a UV kernel and pimpmycpu or setcpu, run at 800mhz

Enjoy 24 hours battery life and a stable 2.3.4 android enviroment

Waiting for LG to do anything about this issue is just going to make this thread 100+ of *****ing. When I got my phone a month ago I was pretty upset at the lack of 3rd party ROM's, but the CM team has done a amazing job getting this stable.
[T-Mobile LG G2x] raz1337:
Installed CM 56 and CM7 kernel 0.2.4. Gonna check out that pimpmycpu/setcpu too. I've been hearing a lot about CM7. I'll give it a shot.
[T-Mobile LG G2x] raz1337:
Installed cm 56 and faux kernel, battery went from 100 to 5% from 1130 am to 9 pm only texting, calling and using facebook. Ran battery cal at 100 in the morning.

Changed to ultimate, faux ext4 uv and cal battery with setcpu at 800mhz. 100 at 9 am. Using net, texting, watched youtube for 15 mins, 65% at 1 pm.
[T-Mobile LG G2x] donbeth:
So the battery life had improved to a somewhat workable state. Then I have no idea what happened. Suddenly the battery was leaking like the Titanic. I was at 100% and two hours later with barely any use, just some emails, I was down 11%. Earlier that day I went from 100% overnight charge to 36% in 4 hours.

I went by the T-Mobile store told them about the random reboots, shut downs and battery drain and they said nothing they can do but give me another battery. Suggested I call customer Service. I called them and the first person I talked to said the random rebooting I reported is "a known bug. A fix is coming out, but I don't know when". She transferred me to another rep about the battery. The second lady listened to my complaints and said "I'm sending you a new replacement phone express mail for free".

Based on all these threads I'm not assuming I will have any different behavior. The Store person and the two customer service agents all warned me not to root my phone. Said it voids my warranty.

Replacement G2X phone should be here tomorrow.
[T-Mobile LG G2x] jonnyboyca:
Just got off the phone with t mobile and my 3rd replacement will be here wednesday. The 2nd phone even with new battery replacement was only lasting 4 hours on a full charge light usage. Plus the phone had screen bleed and a dead pixel. Let's hope the 3rd times the charm.
[T-Mobile LG G2x] donbeth:
Could the ZAGG Smartbuds be draining battery? I had the buds plugged in on Thursday and Friday and found that the battery drained super fast, faster than the already bad battery life. As in 9% loss in one hour.

It did not occur to me it could be the Smartbuds until this morning. I did not use them over the weekend and the battery was ok. This morning, I plugged them in and on the way to work had a short phone call (about 2 min). After an hour I noticed my battery was down 9%!

Anyone have any experience with this?
[T-Mobile LG G2x] athlon866:
My G2X battery drains even if it's turned off!! I fully charged it, turned it off, went to sleep, and when I turn on my phone next morning after 8 hours, it only has 88% left!!
[T-Mobile LG G2x] jonathann0222:
Same here
[T-Mobile LG G2x] regP:
id think you have a defective battery if your phone drains even when powered off...
[T-Mobile LG G2x] IRASadPanda:
I think that may be my problem, my battery was fine but now it drains like crazy even though I haven't changed anything.
[T-Mobile LG G2x] Core Memory:
Maybe it needs a new washer like when the water tap leaks.:rolleyes:

Batteries do self-discharge which for lithium batteries such as the one for the LG-P999 is only about 2-3% per month ( http://en.wikipedia.org/wiki/Self-discharge, http://www.mpoweruk.com/performance.htm ).

http://en.wikipedia.org/wiki/Lithium-ion_battery :

"Prolonging battery pack life

Avoid deep discharge and instead charge more often between uses, the smaller the depth of discharge, the longer the battery will last.[95]

Avoid storing the battery in full discharged state. As the battery will self-discharge overtime, its voltage will gradually lowers and when it depleted below the low-voltage threshold (2.4 to 2.9 V/cell, depending on chemistry) it cannot not be charged anymore because the protection circuit (a type of electronic fuse) disables it.[95]

Lithium-ion batteries should be kept cool; they may be stored in a refrigerator.[95][96]

The rate of degradation of Lithium-ion batteries is strongly temperature-dependent; they degrade much faster if stored or used at higher temperatures.[95][97]"

Test Battery

1) Charge the battery fully, disconnect anything plugged into the phone, note the battery voltage, take the battery out and leave out overnight, put the battery back in and note the battery voltage. If it changed, the battery is self discharging and is faulty. If the battery voltage is unchanged, it's the phone which is drawing current either because of faulty hardware, something which is drawing power from a power supplying port, or software/firmware running when the phone is in standby and/or off.

Test Phone

2) If the battery voltage didn't change, disconnect anything plugged into the phone, note the battery voltage, turn the phone completely off with the battery in it and leave it off overnight, turn it back on and note the battery voltage. If the voltage changed, it is most likely a hardware problem otherwise it is something using current when the phone is in standby which you will have to determine by using a good battery monitor app.

Replacement Battery

https://www.lenmar.com/Web/ProductDetails.aspx?ProductID=CLZ453LG
[T-Mobile LG G2x] Волк:
Great post. In addition, there's also the possibility that there are still active circuits which are draining power, shouldn't be that much though, come to think of it. I'm thinking something similar to on a computer where there's always power going to the BIOS chip and a few other places. Though on a computer it's powered by a watch battery which lasts years, so on the one hand in theory, could be, but on the other hand, it would have to be something which eats the hell out of the battery and I can't actually think of something that could since my battery statistics blame the screen for most of my battery drain.
[T-Mobile LG G2x] Core Memory:
Battery use management and care in charging/discharging is essential to maximum battery use and life. I learned this through a very expensive lesson. I had two brand new batteries for my Mac laptop which I fully charged when I bought them but didn't get around to using for about 6 months. Big mistake! When I tried to use them, they were both totally dead and unchargeable. The terminal voltage of both batteries had dropped too low and the internal charge monitoring circuit wouldn't allow them to be charged. I tried to exchange them but I was told that they wouldn't be replaced due to "neglect" which caused them to self-discharge below their discharge voltage threshold. I took one of the batteries apart and found that the monitoring circuit is powered by one section of the battery and, when the battery voltage drops too low, the circuit shuts off and can't be turned back on without special reset software and that, if that's done, the batteries may be in an unstable state and burn and/or explode. That's one of the reasons why those cheap Chinese batteries are a potential hazard to the P999, they don't have a monitoring circuit or, if they have one, it is usually fake. I added a link to Lenmar's replacement battery which has a 1 year warranty and is $19.99 retail which I think is a good price for peace of mind. https://www.lenmar.com/Web/ProductDetails.aspx?ProductID=CLZ453LG

When I go to bed, I am not expecting any phone calls so I shut down the phone. I usually have the screen at 50% brightness but if I am using the phone in a darkened place, I turn down the screen brightness sometimes to the minimum and I can still easily read it. I also turn off anything I am not using, even the cell radio (airplane mode is handy for this), when I am using the phone for non-phone purposes (not anything kinky!) and I am not expecting any calls, texts, etc. In airplane mode, I often use WiFi which is a battery drainer but it saves my data plan usage for when no WiFi is available. I also have two batteries which I often rotate sort of like shoes which makes them last longer or maybe it is just an illusion.
[T-Mobile LG G2x] ickster:
I got a new G2X last week. It's my eighth one LOL. It took me five returns (six phones) until I got a good one. Then I recently had two back to back fumbles, breaking my screens. I was super impressed with the Assurian claims system...had my NEW phones within days. Sadly they dropped me.

This last one is a froyo model, which was fine 'cause I prefer the camera.

Anyway, out of all the units I've had, the battery life is awesome on this one. I had a battery last 48+ hours the other day! First time I have seen more than 24hrs. I dare say.

Not sure why, altho I have yet to personalize it in any way. I'm using it as it came out of the box.
[T-Mobile LG G2x] Core Memory:
What will you do when you break this one?
[T-Mobile LG G2x] ickster:
Cry.

10 char
[T-Mobile LG G2x] airnique23:
May need to try this. Only getting 5-6 hours max with light use with stock battery:(
[T-Mobile LG G2x] medwatt:
Hello,

I seem to get false alarms at 70% that the battery is empty. How can I stop that because the phone shuts down immediately.
[T-Mobile LG G2x] satte90:
I fixed battrey issu by disableing the mlt. I got my battrey avg from 7-8 to around 45.
[T-Mobile LG G2x] OffTheTimeline:
mlt?
[T-Mobile LG G2x] hippiesky:
Was wondering what mlt was also
[T-Mobile LG G2x] masterfong:
Bad Battery?

Hi i just my lg g2 yesterday, but I can barely get through 10 hours on solely wifi and texting with some internet surfing. Is this bad? Because I have been looking around and people have been getting around 15 hours of battery, which will get me through the day.
[T-Mobile LG G2x] Pain-N-Panic:
Ok.....this is getting on my nerves. Why are all these g2 newbs stumbling into our forum asking questions? You have a G2. This is the G2X. Wrong forum.
[T-Mobile LG G2x] masterfong:
Whoops

Haha sorry about that! I didn't know that there was a difference between them.
[T-Mobile LG G2x] Pain-N-Panic:
Yes. A huge difference. Your phone is amazing and ours is a rock with a battery.
[T-Mobile LG G2x] mansa_noob:
Pain, yours has a battery???

As the story says, a kiss turned my G2X into an HTC Ruby!
[T-Mobile LG G2x] OffTheTimeline:
Um, a rock with a battery... AND a touchscreen :p

What gets me is that's 3 different "G2's" for T-Mo... the HTC desire z (T-Mobile G2), our LG G2X, and the new LG G2. Someone just needs to stop being lazy and think up some new names for devices!

Sent from my rock. With a battery. And a touchscreen.
[T-Mobile LG G2x] Pain-N-Panic:
lolololol Guess I got one of the good ones, huh?!
[T-Mobile LG G2x] moshe22:
Don't think is the root because mine its draining fast and I have not rooted my phone yet.
[T-Mobile LG G2x] soybeanthief:
I haven't rooted mine either and i am having battery issues i am using the wifi tether now with the phone plugged into my laptop and its still draining battery...
[T-Mobile LG G2x] Mac33:
How do I do a factory reset without my apps restoring?
[T-Mobile LG G2x] Mac33:
Never mind. Found it.
[T-Mobile LG G2x] dalepa:
Did a full drain last nite and turned on this morning. Started having the wifi/2g/4g on at the same time issue...

Im down to 70 after 2 hours, same decline rate....

Doing a reset now
[T-Mobile LG G2x] wondercoolguy:
Here is what I've noticed after two days. I factory reset the phone. The battery does fine until you start to use the phone. That meaning when I took my phone off the charger at 6am I didn't wake it just threw it in my pocket. When I got to work at 7am it was still at 99% I sent a text message and went to work. I checked back around 730ish for response to my text and it was at 93%. My theory is once you wake up the dual cores they don't shut down like they are supposed to.....
[T-Mobile LG G2x] rich2thad:
Hmmm interesting ....

I can't wait til we have more control of this dual core beast
[T-Mobile LG G2x] ralph96gt:
Wow doing a factory reset really helped the battery life... I haven't had to charge it all day and doing some web browsing a bunch of texting and also a couple calls... thanks for the fix
[T-Mobile LG G2x] jink25:
No I didnt root the phone yet...with the battery issue I wasnt going to modify stock software until I could determine if it was fixable or not.

Something in the inital config from the factory seems to be bad for certain people, but the factory reset definitely does the trick.

One other thing to note...do the initial google config step by step once resetting the phone, dont skip out of it and do it later.
[T-Mobile LG G2x] Carpet161:
So you are saying drain battery dead till it turns off. Then you say perform a full factory reset and let the phone charge. How do I perform a full factory reset if I just ran the phone dead?
[T-Mobile LG G2x] gaww:
There is a battery conditioning procedure recommended by HTC - probably would work with any battery

To also help with Battery Life you can do these steps exactly:

1) Turn your device ON and Charge the device for 8 hours or more 2) Unplug the device and Turn the phone OFF and charge for 1 hour 3) Unplug the device Turn ON wait 2 minutes and Turn OFF and charge for another hour Your battery life should almost double, we have tested this on our devices and other agents have seen a major difference as well

The above is a cut-and-paste.
[T-Mobile LG G2x] jink25:
The factory reset is a separate procedure from draining the battery and fully charging.

Just doing a factory reset alone very well may fix the issue.

The factory reset is correcting whatever got messed up in the inital config of the phone that is using rediculous amounts of battery.

Draining the battery and charging to 100% may help calibrate the software/electronics to ensure maximum battery capacity is utilized...it may also do absolutely nothing but it cant hurt.

I dont think there is a right or wrong way to do this but when I was messing with it this is just what I happened to do:

Drained battery to 0.

Plugged phone back in.

Factory reset.

Let phone charge all night.

Next day battery life was tenfold better.
[T-Mobile LG G2x] Minker17:
Factory reset is volume down + power, right? Are are you doing it through settings?
[T-Mobile LG G2x] AuroEdge:
My cell standby usage is through the roof. Battery not so great. Correlation?
[T-Mobile LG G2x] Evofusion:
I let the battery drain out and charged it. It finished at around 3 am and i disconnected the phone and went to sleep with it at idle. At 12 noon the phone was at 80% 9 hours later, which is extremely nice. My graph looks very stable much like the OPs.

Thanks OP you saved me from a headache
[T-Mobile LG G2x] brian6685:
I dunno if anyone else uses the led notification app, but I used it for a few days after i got the phone, and the battery life was no good. I accidentally forgot to turn the led app on today because I turn it off at night, and i've noticed that I get much much better battery life without it. I think it drained a lot of battery for me... just sayin
[T-Mobile LG G2x] slickerxcuh:
does juicedefender (app) help out with the battery life? trying this method tonight
[T-Mobile LG G2x] jink25:
Part of the initial solution I presented, and also an added bonus of the factory reset is removing ALL applications you may have installed.

Run the phone in as close to stock form as possible to verify if you are still having battery life issues. After the factory reset if your battery lasts good then start to add apps slowly...if one particular app drains your battery you know not to use it too.

You need to eliminate variables first to determine where the issue is.

There are a lot of bad apps out there that will drain battery...even if you think they are sitting there doing nothing!
[T-Mobile LG G2x] JHaste:
I have not done a factory reset but last night i actually drained my batter down completely and fully charged it overnight... I now have had the phone unplugged for 5 hours 12 minutes and the phone is at 94% with light use (screen on for about 17 minutes to respond to texts and emails...) and wifi on the entire time, cell standby is 34%, wifi is 34% phone idol is 32% and display is 2%
[T-Mobile LG G2x] lobsterhead:
I just rooted mine last night and then saw this thread. Now I'm going to pay extra careful attention to it and see if that has affected my battery life. (Pre-root it seemed to be fine and I got through the day ok.)

Can you do a factory reset with a rooted phone in the usual way or do you need to unroot first or something?
[T-Mobile LG G2x] schmit:
Gonna keep this and give it a shot. Did you have any positive results w/ it?
[T-Mobile LG G2x] Cheeze[iT]:
I'm tempted to do a factory reset and see if it helps
[T-Mobile LG G2x] Carpet161:
Me too. Doing factory reset now.
[T-Mobile LG G2x] pegasus312:
That happened for me too, though I'll probably give the advice from htc a shot as well. Couldn't hurt.
[T-Mobile LG G2x] Serotheo:
Got my G2x today.. battery issues are non-existent, I thought I had battery issues for a moment but on the last 1% during discharge it sat there for 1 hour, still-kicking. But to make sure, I'm having a standby test (using my Cliq as a comparison) should be draining at most 3% battery per hour with my widgets updating on 2G once an hour.. although the average tends to be 1% per hour.. right now it's sitting at 99% still since 8:26 and no reboots/black screens yet.. although I have backlight bleeding.

During set up I did G mail and and unchecked Google's anonymous location data, but I checked the box under (I don't remember the info.. I was too excited).

Just thought I'd give some info to help fill in a picture of what might cause problems.
[T-Mobile LG G2x] TimTim12:
So I did this, and it's been 15 minutes since the last step has finished. I've been playing music for those 15 minutes, and I'm still at 100%. Nice! Screen has been off most of the time, but I'll report back tomorrow as well.