lg g3 battery % is lying. - G3 Q&A, Help & Troubleshooting

I know it's a dinosaur of a device but I've got it modded and it's a good phone and works great. Ok what happens is the battery charges and holds and lasts all day but the level indicator says 100% all the time until the phone shuts down. I've flashed stock firmware from 4.4.2 to 6.0 and 3 or 4 different custom ROMs and it is the same no matter what I do. I have seen it show different battery levels in booting up after flashing something or a situation like that but its a unstable reading because of the way it'll fluctuate. So I'm thinking it's a hardware issue. The phone works as it should with the exception of that. It has a original oem lg battery unknown if it's been replaced or it's got some kind of fault. It's basically my work phone my side chic to my Nexus 6 because the SD card storage holds my music so it would be nice to have that working so I know when it's going to die. Anybody else with this issue. Thanks in advance.

Was the battery ever changed? I think it May be related to battery
G6

matuszp said:
Was the battery ever changed? I think it May be related to battery
G6
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That I'm not sure of, it's a oem lg battery and it works good and lasts all day, actually surprisingly very good battery life that's what made me think it was internals because if I reboot into recovery and then back out out when it boots it'll say battery is is dead and shut back off, but I'll reboot again OR just plug it in for a sec it'll boot back up with 100% battery life. It never gives a accurate reading. Well I'll order a new battery off e.bay there only 7$ to 10$ for a original lg battery. It's a great phone for what it is with some mods it's fast as hell.

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Battery no longer holding charge

Having a strange charging issue with my phone.
I let my phone charge over night and when I took it off this morning it was at 100%. When I checked it about 15 minutes later it was all the way down to 21%. Is it possible that my battery has gone bad? I can't imagine an app causing that much drain.
Just in case it matters, I am running CM10. I also recently replaced the USB port on my phone because it had become worn and loose. I don't think the issue is with that because the phone recognizes that AC charger and will charge it.
Sounds like a bad battery to me. Does your battery show any signs of swelling?
Sent from my HTC Incredible 2 using xda premium
zax10 said:
Sounds like a bad battery to me. Does your battery show any signs of swelling?
Sent from my HTC Incredible 2 using xda premium
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Click to collapse
Looks OK to me.
No way this could be rom related right?
Not that much. I have installed many different roms on many different phones and never got results like that.
Sent from my HTC Incredible 2 using xda premium
Hmm the plot thickens...
I just charged my phone at work to 100% using a different charger and unplugged it. Its been almost two hours and I have only lost 6%.
Is it possible its the particular charger or could a failing battery cause inconsistent results like this?
Does your phone get really hot on that charger at home. If so it could be a bad charger. Also I have had times when my phone would get a false battery reading. It showed a 98% charge but when I looked in recovery it showed around a 40% charge. When I rebooted it was showing what recovery showed. That actually sound like what happened.
Is this the first time something like this has happened.
Sent from my HTC Incredible 2 using xda premium
Sounds like you got yerself a case of gremlins
I actually noticed it happening once or twice before but it was at the same time that my charger port was acting all wonky so I just assumed that there wasn't a good connection being made and it had drained on its own.
I'll have to do some more experimentation when I get home. If not I'll have to look for the wipe gremlins option in clockwork
Wishka233 said:
I'll have to do some more experimentation when I get home. If not I'll have to look for the wipe gremlins option in clockwork
Click to expand...
Click to collapse
LMAO sounds good. Have you tried wiping battery stats? Maybe something just went wonky.
Wiped battery stats and removed an app that I suspected was draining the battery. Seems to be better now. Thanks!
Apparently I spoke too soon. Battery life on my phone remains inconsistent. Symptoms are as follows:
1. Phone will charge to 100% but lose 50% of battery life within 20 minutes of being taken off the charger OR
2. Phone will appear to be charging (lightning bolt in battery symbol, battery stats states it is charging on AC) but the actual battery reading will remain static or even decrease OR
3. Phone will charge but at an extremely slow rate
Here are the fixes I've tried so far:
1. Wiped Battery Stats
2. Replaced charger port
3. Tried different chargers
4. Tried different wall outlets
5. Purchased new battery
6. Factory wiped phone and installed new rom
Searching google shows that this is not a unique problem to the Incredible 2. However, the culprit is usually a loose charger port which I have already replaced. I am at a complete loss, does anyone have any other ideas??
Wishka233 said:
Apparently I spoke too soon. Battery life on my phone remains inconsistent. Symptoms are as follows:
1. Phone will charge to 100% but lose 50% of battery life within 20 minutes of being taken off the charger OR
2. Phone will appear to be charging (lightning bolt in battery symbol, battery stats states it is charging on AC) but the actual battery reading will remain static or even decrease OR
3. Phone will charge but at an extremely slow rate
Here are the fixes I've tried so far:
1. Wiped Battery Stats
2. Replaced charger port
3. Tried different chargers
4. Tried different wall outlets
5. Purchased new battery
6. Factory wiped phone and installed new rom
Searching google shows that this is not a unique problem to the Incredible 2. However, the culprit is usually a loose charger port which I have already replaced. I am at a complete loss, does anyone have any other ideas??
Click to expand...
Click to collapse
I literally just had the same problem although I didn't buy a new battery but it was when I was flashing cm10.. I tihink it might be rom related. Literally everything u just said happened to me I was trying different chargers and everything as well...I finally pulled the battery for like 20 minutes then restored a back up of miui gb and the wiped cache, battery stats, and dalvik....then I was back in action...hopefully u figure it out hope everything works out on your phone!
antone315 said:
I literally just had the same problem although I didn't buy a new battery but it was when I was flashing cm10.. I tihink it might be rom related. Literally everything u just said happened to me I was trying different chargers and everything as well...I finally pulled the battery for like 20 minutes then restored a back up of miui gb and the wiped cache, battery stats, and dalvik....then I was back in action...hopefully u figure it out hope everything works out on your phone!
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Click to collapse
Thanks
Yeah changing the rom might be my next step. I must get to the bottom of this!!
Wishka233 said:
Thanks
Yeah changing the rom might be my next step. I must get to the bottom of this!!
Click to expand...
Click to collapse
Yeah change the rom...I was trying dkstunnas 9 and 10 cm roms and they both would load then boot off twice then come back on then the battery would get hot then I would go to set it up and literally couldn't take it cuz it was like almost frozen how laggy they were! Back to miui gb til I can figure it out... good luck!

battery problems

My girlfriend has a GS3 love the phone but it has a serious battery drain. It doesn't matter if its a stock or custom rom. It is running stock 4.3 right now and the battery has gone from 100 to 83 in 3 hours. with 30 min screen time. I thought it was the battery so i got another Samsung battery and its not ant better. I tried to search but it seem the search funtion is not working because it gives me nothing no matter what I search for. Any sugestions would be great.
vdubguy said:
My girlfriend has a GS3 love the phone but it has a serious battery drain. It doesn't matter if its a stock or custom rom. It is running stock 4.3 right now and the battery has gone from 100 to 83 in 3 hours. with 30 min screen time. I thought it was the battery so i got another Samsung battery and its not ant better. I tried to search but it seem the search funtion is not working because it gives me nothing no matter what I search for. Any sugestions would be great.
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Click to collapse
my phone doesn't know what 90% looks like
when its off it doesn't want to charge more than 85%
when its on and goes to 100% it goes into the 80s in no time
@CallMe_Y_C said:
my phone doesn't know what 90% looks like
when its off it doesn't want to charge more than 85%
when its on and goes to 100% it goes into the 80s in no time
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Click to collapse
Sometimes when it's charging it says 100%, and then when I take the charger off it suddenly shows up 37%? WTF?
Ali7000 said:
Sometimes when it's charging it says 100%, and then when I take the charger off it suddenly shows up 37%? WTF?
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Click to collapse
try a different charger or port
2nd updating from 4.3 from 4.1.2 has a big change to the phone how it works etc and by that the phone takes time to adjust to 4.3 thus getting bad battery drains, a week or two or a month and the battery will be as good as ever
winosxbuntu said:
try a different charger or port
2nd updating from 4.3 from 4.1.2 has a big change to the phone how it works etc and by that the phone takes time to adjust to 4.3 thus getting bad battery drains, a week or two or a month and the battery will be as good as ever
Click to expand...
Click to collapse
It has been happening randomly since android 4.1.2 and still continuing on to android 4.3.
Ali7000 said:
It has been happening randomly since android 4.1.2 and still continuing on to android 4.3.
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Click to collapse
Get battery saver or juice defender this are two apps I have used to monitor my battery usage and they recommend to charge the phone to 100% and that will change as to how fast your battery dies
Letting the phone die and charging results to bad battery life while recharging phone at a timely manner increases battery life
Also note that GPS/WiFi/data/screen drains battery like crazy so fix those and you will notice a big difference

Optimus G Pro E980 Battery

hi. i just got my new phone E980. its the AT&T model. the batter is so ambiguous man... like i got the phone just yesterday, started checking out the phone and the battery was like 23%.
after LITERALLY like 10 mins the battery went to like 12%... i was like WOOOOT.....
i discharged the phone completely and then took out the battery and discharged any remaining power from phone as its recommended.
then i charged the phone to full and started using again like paystore apps downloading.
as i checked the battery from setting the idle was using like 3rd most battery in the list after screen and android OS.
what is this man??? isnt it supposed to be a phablet? is it ok for my phone to be this worst at battery. this is first ever non-Samsung phone and i m used to good battery life where idle does not take freaking 3rd most of the battery... WTF... im kinda disappointed
also can someone tell me and pls like me here any good roms and how to root this phone and also tell me which roms provide good battery life?
i will be so thankful for these links...
smiler what happened to me :\
now i need to wait for new battery to arrive
EDIT:
small tip
its might help the sudden restarting if changing the processor speed to 1ghz max
I've solve the same Issue by using an Ipad Charger because the 3140Mah battery need a 2 Ampere charger.
First day my F240L drain full battery in 3 hours, the 100% charge was fake by charging with Galaxy S3 charger (I got Phone Used without Charger), the phone show 100% charge but the value was fake.
Try a charger with 2 Ampere Output.
This metod is working with ipad charger and Galaxy Tab 3 charger.
I hope that my Hint work for you.
Now my battery works very well. yesterday i disconnect phone at 8.30 am and at the 23.30 the charge was 47%, with mid-heavy use and wifi turned on all the day.
Plus 1!
LoriaEneg said:
Try using this - ZeroLemon LG Optimus G Pro 9300mAh Extended Battery
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Click to collapse
Just got a set of these and a charger and they are great!! They are fairly cheap but not crap like the VERY cheap ones. Plus they have 180 day warranty. I suggest anyone who needs a battery go for the Zero Lemon.
Sweet Kandy Sleep
aami.aami said:
hi. i just got my new phone E980. its the AT&T model. the batter is so ambiguous man... like i got the phone just yesterday, started checking out the phone and the battery was like 23%.
after LITERALLY like 10 mins the battery went to like 12%... i was like WOOOOT.....
i discharged the phone completely and then took out the battery and discharged any remaining power from phone as its recommended.
then i charged the phone to full and started using again like paystore apps downloading.
as i checked the battery from setting the idle was using like 3rd most battery in the list after screen and android OS.
what is this man??? isnt it supposed to be a phablet? is it ok for my phone to be this worst at battery. this is first ever non-Samsung phone and i m used to good battery life where idle does not take freaking 3rd most of the battery... WTF... im kinda disappointed
also can someone tell me and pls like me here any good roms and how to root this phone and also tell me which roms provide good battery life?
i will be so thankful for these links...
Click to expand...
Click to collapse
I am getting great battery life on my E980 using the latest Kandy Kat 4.4 ROM everything stock...See screenshots attached...
'droid said:
I am getting great battery life on my E980 using the latest Kandy Kat 4.4 ROM everything stock...See screenshots attached...
Click to expand...
Click to collapse
Screen time ?
Uptime
optimusv45 said:
Screen time ?
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Click to collapse
Sorry that's all I got but you will see in the first screen shot during the 3 days the phone was powered on and off charge, the screen used 35% of the battery. I have had 2 previous phones, TMO GS2 and ATT Note1 and never had the battery last longer than around 24-26 hours on any ROM under similar circumstances. That is with notifications enabled and data and Wifi active but Bluetooth off.
2nd screenshot shows phone was sleeping (offline) 95% of the time so if my calculation is correct, on screen time would calculate out at 4394 minutes * (100-95.4) % = 202 minutes or around 3.3 hours during the 3 days I was using it (little more than 1 hour a day). Assuming the screen was on whenever the phone was online.
You just need to press Screen to see screen time
optimusv45 said:
You just need to press Screen to see screen time
Click to expand...
Click to collapse
Thanks for the tip. Did not know that!

Phone shutting off at 35% battery level

Ever since I upgraded to Marshmallow, the phone is shutting off at 35%.
If I plug it into a fast charger it'll start back up. Non fast charger forget it. Battery shows 35% when I plug it in to charge.
Took it to Best Buy after speaking to an AT&T tech. The Samsung rep at BB, said he ran some recovery software to check for missing or corrupted files associated with the upgrade. It appeared that they just reinstalled the 6.01 update.
Anyways it did nothing and the Samsung tech said I could try doing a factory reset or maybe try a new battery. He then said that if the problem started after the the MM update, then that's the issue. He mumbled something about the phone just wasn't able to handle MM blah blah blah.
ATT offered to ship me a new phone with a working upgrade.
Before I go that route or try a factory reset, I thought I'd check here for other ideas.
Not happy with the phone since the MM upgrade. Along with the phone shutting off issue, it's shutting off while charging on my wireless charger, phone screen is screwed up in landscape mode and doesn't show any of the buttons that show in portrait mode.
Is there a battery calibration app that will run on this without root?
I'm a computer tech, with a VZW N4. I popped over here to see if I could help a friend with the ATT N4. Looks like he's stuck without root, but saw your post and decided to reply.
I always recommend installing 'Battery Left Widget' from the Play Store and use it on the main screen. If you want to test the battery... do the following. But I'd recommend getting a new battery. It's most likely the cause of your problem.
Go to the settings and change the 'Discharging Widget Man Text' to "Estimated Battery %". The other settings can be as you wish, but I prefer the 2nd to be time remaining and 3rd to be time dead. Do the same for the charging options.
Let it calibrate for a few days. If you see a big discrepancy between the system battery (in the top right) and the widget, you've got a dying battery. Buy a new one. My Verizon version of the Note 4 started dying at 22% and rebooting. Dying battery was the cause. I knew this because it would read 72% in the top, but 42% in Battery Left Widget. And when it would get to 5% in the widget, it would start rebooting. The other battery at the top was reading much higher. A new battery fixed my woes. However the OTA upgrade to MM did a job on the battery too.
One word of advice ... turn off Fast Charging. It probably killed your battery in the first place. The original Samsung chargers will still charge it to full in a couple hours, but Fast Charging does something bad to the batteries, and they don't last as long. I know, I've had a Note 4 since day one, and I'm on my 4th battery.
A note about MM upgrade. I have to say, I wasn't a fan either. My battery didn't last as long on MM as it did on LP. The tricks about doing a full wipe didn't help. The only fix was to get my VZW model rooted and I regained control. Now I have a MM rom that actually works well and gives me 15 hours a day of usage, 3+ hours of on screen time.
What rom you are using anyway. I have changed my battery and switched to miui 8. But problem remains same with an extended battery life... But mine won't charge more than 67% and shut down @ 12% with a SOT of 3 hours and above.
rsd666 said:
What rom you are using anyway. I have changed my battery and switched to miui 8. But problem remains same with an extended battery life... But mine won't charge more than 67% and shut down @ 12% with a SOT of 3 hours and above.
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Click to collapse
I would try your battery in another device, just as a test.
Well ... mine is a VZW Note 4, not AT&T. I've used multiple roms over the past few months. I don't know what type of extended battery you are using, but if it's the ZeroLemon, it may need a better kernel to work with it. The phone doesn't know about extended batteries without additional instructions, so charging and time to empty can vary.
I just know I will NEVER buy another Samsung battery from anywhere. I think 99% of them are fake. I went with an Anker brand and it's been perfect.
Currently, I'm running MODest v5 ROM. I just installed Nseven on a 2nd device as a test. As for the MODest ROM, after only a couple of days of testing, it looks like I'll get even better battery life than I did with PaulPizz v2 (over 16 hours of heavy use compared to the 13 with PaulPizz)
Thanks for your quick reply... Im using samsung original Stock battery and there is sticker of smart care and it is from a samsung showroom
So no idea its original or not.. Should have been original... My note 4 SM 910S SK tel korian version so the rom options are very limited. Do not have any warranty period left so im confused whether i should go for a hardware checkup... Anyway im pissed of since the marshmallow arrives....the problem started right after that update.. Since then i have changed rom changed battery.. So now i guess i have to change the phone finally... Anyway thanks for your reply..
I have the same problem with charging to only 67%
If you take out the battery it will continue charging to 100%.
All this cr*p started when updated to MM
Going back to stock 5.0.1 and doing the #*0228# reset should help.
And samsung batteries are a disaster, even the genuines ones.

Invalid battery on PowerBear 3200 mah

Hello,
I'm having the dreaded woes with an old battery that seems to be losing its charge too fast and my phone is sitting down at 30%. I bought this replacement, but my phone comes back and says invalid battery and shuts down. It won't charge it or anything. I've searched the forum but didn't really see any solutions. Anyone ever find a good way to make it work? The battery looks fine physically.
Thanks!
Try to clean the battery contacts?
Could also be that the new battery is not making enough contact with the phone battery contacts. In that case you would have to GENTLY pull the phone's battery contacts slightly outward to ensure a better connection.
I had the same the first few times that I tried swapping in the new, spare battery but thankfully it's settled down now. I think I took out the battery, held down the power button for 5 seconds and then rebooted (that was how I'd get round issues like that with my samsungs).
Is your phone updated to Oreo?
No, I not at all. I was still on an earlier version until I installed H918P last night so I could root/custom recovery and try some modded roms with this phone. I'm stuck on that now too.
I've read around and seems like this battery may be bad. Others have gotten replacements and they worked. Maybe I should have just stuck with OEM.
Wanted to give a bit of an update. After rooting and installing RR and Gamma, this message never came back. I opted in the new PowerBear battery and it's been amazing. Great life!

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