Database Develop

Why I think battery life sucks so bad...

I usually have a multimeter on my counter for my ecig mods, and, since I change batteries pretty often now that I have spares for my thrill, I'be been randomly checking thier voltages. What I've found is that a "dead" battery is at ~3.7V. That's not dead. These phones should discharge to something like 3.2V. Anyone have any idea as to why they would read nominal voltage as dead?
Sent from my LG-P925 using XDA App

After few more charges, it discharges to about 3.43V, still high I think, so I'll keep an eye on it.
Sent from my LG-P925 using XDA App

lastdeadmouse said:
After few more charges, it discharges to about 3.43V, still high I think, so I'll keep an eye on it.
Sent from my LG-P925 using XDA App
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What you're saying actually makes sense. The system has to calibrate itself to the battery. This is why battery life tends to improve over time as you discharge and charge the phone. There are ways to kick start the process but eventually it will do it on it's own. My battery life has tripled after a couple weeks.
Sent from my LG-P925 using Tapatalk

i am wondering why i have fully charged and discharged my phone numerous times and my battert is horrible. its gotten worse. i unplug it with 100% at 5:30 a.m. its now 9:40 a.m. and im at 62%! i have sent 2 text messages this morning and my app manager has no open apps. Why would my battery be so bad? i have had this phone since the day it came out and love it. im not real familiar with all the "rooting" or all this fancy stuff but i do know that the phone should have a better battery life than it does.
Does anyone know what i should be looking at to see what is killing the battery so fast. almost 40% in 4 hras and i havent even used it?
thanks.
"puzzld"

puzzl31 said:
i am wondering why i have fully charged and discharged my phone numerous times and my battert is horrible. its gotten worse. i unplug it with 100% at 5:30 a.m. its now 9:40 a.m. and im at 62%! i have sent 2 text messages this morning and my app manager has no open apps. Why would my battery be so bad? i have had this phone since the day it came out and love it. im not real familiar with all the "rooting" or all this fancy stuff but i do know that the phone should have a better battery life than it does.
Does anyone know what i should be looking at to see what is killing the battery so fast. almost 40% in 4 hras and i havent even used it?
thanks.
"puzzld"
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Try installing a ROM that removes some of the services that a stock rom has this way will save your battery time a lot

josuelopezv said:
Try installing a ROM that removes some of the services that a stock rom has this way will save your battery time a lot
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what do you suggest??

puzzl31 said:
what do you suggest??
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I have installed several ROMS i am new to the LG Thrill but with my previous HTC G2 y used cyanogen but as per this is a 3D phone cyanogen is not ready yet. But the best rom i have tried so far has been the thriller
http://forum.xda-developers.com/showthread.php?t=1261704
although is missing good things from the newer firmwares like the 3d app converter.
But i'm ussing the thriller Rom until LG releases the Gingerbread official update that comes with great new stuff

Here's what I've found out about the battery. It's apparently a known issue by google addressed in later updates.
Here's a great method to work with it for now.

puzzl31 said:
i am wondering why i have fully charged and discharged my phone numerous times and my battert is horrible. its gotten worse. i unplug it with 100% at 5:30 a.m. its now 9:40 a.m. and im at 62%! i have sent 2 text messages this morning and my app manager has no open apps. Why would my battery be so bad? i have had this phone since the day it came out and love it. im not real familiar with all the "rooting" or all this fancy stuff but i do know that the phone should have a better battery life than it does.
Does anyone know what i should be looking at to see what is killing the battery so fast. almost 40% in 4 hras and i havent even used it?
thanks.
"puzzld"
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This mine with 48% battery life left. I found out on mine if you play one of the 3d games and don't exit out of right it continued to run and eat the battery. I use wifi where ever it is available. Always leave it on unless I am on the road then I turn it off so it won't be hunting for a connection. Have gone 28 hours and have 30% battery left.
Had phone since September 4th and battery life has improved tremendously. Stock and unrooted.
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Sent from my LG-P925 using XDA App

My phone is stock and unrooted as well. i charged it this morning from completly dead. started to charge at 6:30 am and took untill almost 11:00 before it was a 100%. now it is 1:30 pm i have sent 1 text message and thats it except meybe waking it up to see if i have missed calls or txt and my battery is down to 44%! 2 hrs really? i have not used it. Wifi is on but should not be sucking that much juice. i trashed the yahoo news app. my weather app is set to update manually. i dont have anything special done to my ohone like all these forums suggest the "rooting" or special rom's. it pretty stock.
I have used the battery calibrator app and it didnt seem to do anything for me. anybody else have other suggestions? i basically get about 3-4 hrs of battery life berfore having to charge unless i use the phone then i get about 2.
oh yeah and my wife has the same phone, some battery issues but i think her's is normal. so to see if it was the battery or my phone we swapped batteries. my original is in her phone working fine and i have her's and still crappy so i know it wasnt just a bad battery.
what do i do next??

You could install CPU spy from the market and see what it is showing you. See if it ever gets into deep sleep mode. I also use battery monitor widget from the market to see what all is using battery.
Sent from my LG-P925 using XDA App

How's your battery life

Just doing a poll on your battery life how you use it what from etc.. I'll start Im 4.03 ice by dhacker.
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Sent from my XT875 using XDA App

bfitzpatrickd2d said:
Just doing a poll on your battery life how you use it what from etc.. I'll start Im 4.03 ice by dhacker.
Sent from my XT875 using XDA App
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what are you showing us, that after five hours you plug in??
Dee Ex Two - See Em Seven

Haha. Yea, he's showing that his battery meter is not accurate. Lol.
I lasted 3 days and 9 hours with my $10 extended battery. It was at 1% for a good 36 hours of it.
On my standard battery after 16 hours of "normal to light" use, I'm usually around 60%. As long as I don't have to charge it during the day, I'm happy. Plug it in every night when you go to bed and unplug it in the morning, you will last all day.

lmao wasn't the planning on that ill give a more accuarate battery in a few hours i actually went from full at 12 pm to about 5 brinking me to 10 percent in 5 hours

LucasMN said:
Haha. Yea, he's showing that his battery meter is not accurate. Lol.
I lasted 3 days and 9 hours with my $10 extended battery. It was at 1% for a good 36 hours of it.
On my standard battery after 16 hours of "normal to light" use, I'm usually around 60%. As long as I don't have to charge it during the day, I'm happy. Plug it in every night when you go to bed and unplug it in the morning, you will last all day.
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Other than the incorrect meter LucasMN, how much better is the extended battery in terms of single full charge. I am debating on getting an extended battery because I use my droid heavily throughout the day for work. I charge with the same habits as you. With my current standard battery I get to about 50% by 2pm (my day starts at 8:30a)
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I cannot compare it to the standard battery as I've never let the standard get lower than 30%.
3 days and 9 hours on the extended battery included 2 full work days. I work in IT and will quickly check e-mails throughout the day on my phone. Out of the office I use it quite a bit for facebook and streaming music. 95% of use was over Wifi though.
I bought the battery + cover off ebay for $10. It's about 3x as thick as the original battery.

So I was a bit concerned about battery now seems to be pretty good strange how some days I get 5 hours to 20 percent now going on 7 at only 50 percent
Sent from my XT875 using XDA App

Can't post screen shot since phone is stuck at motor screen atm, but...with a dim screen, cal'd battery and debloated rom , I can burn through a full charge OEM extended battery in half an hour or less. I use a ton of SMS...

a half hour for a extended battery are you freaking kidding me and i thought this was bad i sms a lot too facebook and xda mostly through the day that is just crazy i am still at 50 percent and now at 7 in a half hours looks like i might make it to almost 12 on this one

when I get to a PC and unfutz my bionic ill screen shot it for you. To be honest I have always been a battery abuser though. BB curve to storm to og Droid to d2 and now bionic...all had to have extended batteries.
Sent from my GT-P7510 using xda premium

Most recent update pics charged for about thirty minutes at fourth percent pretty impressive I think
Sent from my XT875 using XDA App

psigti said:
Can't post screen shot since phone is stuck at motor screen atm, but...with a dim screen, cal'd battery and debloated rom , I can burn through a full charge OEM extended battery in half an hour or less. I use a ton of SMS...
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I would love to see this. With my extended battery, I stayed at 1% for over a day though. Unless yours is powering off, I bet that would be the case. 30 min for an extended battery, even an OEM standard battery sounds like BS to be honest, unless it is physically damaged.

I don't know what happened to mess up everyone's battery life, but when I flashed the 904 update mine all went away!

How has your battery life been?

I must say, this little thing is impressive... I've been hammering this thing all day! I expected 6-7 realistic hours.
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That's pretty good, I see it to improve after a few more charges.
Does yours takes a while to charge fully?

MrPhilo said:
That's pretty good, I see it to improve after a few more charges.
Does yours takes a while to charge fully?
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I charged it once since purchase yesterday.. took about an hour and thirty.

mine has been crazy about 10 hours of nonstop usage as well I can barely put the thing down. Current charge is a bit lower cause I have been playing GTA 3 all day

I decided to use it right out of the box with 40% and it lasted 20 hours with moderate use I'd say. Played a couple games and streamed some music and a few emails. It's all charged up now, so I'll see how the battery is now!
Sent from my SAMSUNG-SGH-I777 using xda app-developers app

WiFi seems to use a really small amount of battery power.

phoneman09 said:
I decided to use it right out of the box with 40% and it lasted 20 hours with moderate use I'd say. Played a couple games and streamed some music and a few emails. It's all charged up now, so I'll see how the battery is now!
Sent from my SAMSUNG-SGH-I777 using xda app-developers app
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Great battery life so far and yea it seems to take forever to charge up, then than apps syncing etc I left it alone for a while and it'd only charged like 30℅

Mine has been great as well. Been playing games and watching videos and browsing. I guess the real life tests they did were accurate when they rated it at 9 hours.
Sent from my Nexus 7 using XDA Premium HD app

Make sure you're using the Asus charger that came with your N7 to charge it.
The Asus wall charger puts out 5v 2A - most other chargers are only outputting .5A
My first charge took forever using an old Moto charger I use for other devices.. once I plugged in the Asus it's down to less than 3 hours for a full charge.

so that means from zero (0%) to 100% fully charged how many hours of charging with the original charger?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

about 3 hours

Speeding Wheels said:
Make sure you're using the Asus charger that came with your N7 to charge it.
The Asus wall charger puts out 5v 2A - most other chargers are only outputting .5A
My first charge took forever using an old Moto charger I use for other devices.. once I plugged in the Asus it's down to less than 3 hours for a full charge.
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I feel much better knowing that I'm not the only one to have done that.

Battery Life is Far Better than expected
My battery life has been exceptional, which surprised me. I saw a youtube video where the guy from Cnet said he was concerned about how fast the battery drained. I don't know if he had a defective unit, but I've been pushing it pretty hard. Downloading apps, watching youtube videos, checking emails constantly and browsing the internet.
I've even used super video and overskreen to browse and watch a video at the same time. Still it last at least 8-9 hours. When on a long car ride, about 6 hours of constant use... Got home and it was at just under 30% battery left. This N7 is a BEAST!

Great battery life here as well. Just watched 4 straight hours of movies streamed from my HTPC using Air Video Server and Mirage player while out of town. Flawless.
Sent from my Nexus 7 using xda premium

Battery life seems pretty good to me, pulled off the charger and used alot yesterday, mostly web browsing with screen set to it's lowest setting cause I was inside all day, timeout set at 5mins. I was connected to a weak wifi signal all day with gps on and bluetooth off.

can you imagine what the battery life will be when we get some cooked up roms with some tweaks in this beast!

im happy with the battery life as well as the charge time

Battery life has been great, 8-10 hours, no complaints besides that it charges very slowly.
Sent from my Nexus 7 using XDA Premium HD app

I enjoy being able to put the tablet down and picking up the next day without it having been on the charger and see it only went down from 92% to 82%..
Last tablet I had, even turned off, it wouldn't have enough power to turn on the next day.
I am at 77% with 1d 6h 9m 5s..

I could play hard all day, set it down late at night. Wake up in the morning and hop on. It has great battery life. About as good as my iP*d

4.2 battery life.

I think it's obvious there are some serious flaws with 4.2, everyone has made that evident. I just wanted to ask you guys what kind of battery life you all are getting out of your N7 with the new 4.2 update?
EDIT: Im not so much worried about the battery life regarding 4.2, just battery life in general. Ive got everything turned waaay down and am only getting roughly 20 hours with moderatly heavy use. What do you guys get?
Sent from my Nexus 7 using xda app-developers app

Same as 4.1.2 I believe. I can't tell a difference.
Sent from my Nexus 7 using xda app-developers app

I actually haven't had any issues as of yet. Been running it only a week. I did update all the apps right away, which a lot of people that had problems related them to the apps.
Haven't had one force close and battery life has been right on par with 4.1.2.
Sent from a galaxy far away!

So far mine has gotten better. I cant say for certain this is due to 4.2.1 however since I switched ROMS and Kernels to get it. But it certainly hasn't gotten worse!

Getting two days out of it which is perfectly fine with me. I get the same out of my Asus Transformer Infinity as well. Seems reasonable to me. What type of battery life were you expecting our need? Can't find a time to charge in a couple of days or something?

Ohh ive got the time. Was just curious as to what other users were getting. Guess i just expexted more battery life outta the N7. I usually get one solid day of use out of it, granted i do use the hell out of it and so does my girlfriend
Sent from my SAMSUNG-SGH-I717 using xda app-developers app

I think that the batery life when you flash 4.2 is very badly.

I generally charge daily due to extremely heavy use, a few hours worth of gameplay while at work and use as my primary computer while at home. But I have went as much as 3 days with just light browsing here and there.
Sent from my Galaxy Nexus using xda premium

My battery life hasn't been that great when i was on 4.1.2 i lost like 1% over night now im losing like 15% even tho i just charge it up it seems thats its the Android os and google services thats killing the battery. I never had that much battery drain untill 4.2- 4.2.1
Sent from my Nexus 7 using xda app-developers app

I've got to say mine's far improved... To be honest I've now set WIFI to off when in standby and screens always been down to 25%, so I'll get 2-3 days out of it with average use!

EVERYONES battery usage is going to vary... Wifi on during sleep with media syncing etc etc.... Is going to be much higher than me turning off wifi on sleep and not that much stuff running, etc...
My N7 is still at 100% if I take it off the charger at 9am and don't pick it up until 1-2 in the afternoon, which happens sometimes when I'm busy at work. There have been days that I didn't touch it all day at work and got home at 6pm and it's still at 100%.
In actual use (news, browsing, etc, not games) I see about 13-14% battery usage an hour, depends on the backlight. Games or movies, more like 16-17%.
And I've seen no obvious difference between 4.1.1, 4.1.2, 4.2, 4.2.1, etc....

My battery life so far has been amazing.
I always make sure it is fully charged when I leave my home at 7am. I have syncing, wifi and gps always turned on. While traveling I watch videos most of the time (around 1 and a half hours video screen time in total). During the day while working I use my N7 for web browsing, social media, taking notes, agenda stuff, etc. Most of the time I'm home around 6pm. Then I have about 60-70% left. I'm using stock 4.2.1, no custom kernels, root or roms whatsoever right now. I could make 2 days with quite some heavy usage, which impresses me a lot.

Took a screenshot of the battery run time. This is what I'm getting with basic web surfing and watching YouTube.
Sent from my Nexus 7
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Was baby sitting some kids yesterday I think I got at least 4 hours of netflix in straight and it still lasted the whole day.
Sent from my Nexus 7 using xda app-developers app

I'm down 10% with 1 hr 20 mins screen on.....that equals 11 hrs screen on.
That's epic!
Sent from my Nexus 7 using Tapatalk 2

As long as I don't play HD games, the battery life is neat.. ^^ but if I play HD games, its sucked out in 3/4 +/- hrs.
Sent from my Nexus 7 using xda premium

fushla said:
As long as I don't play HD games, the battery life is neat.. ^^ but if I play HD games, its sucked out in 3/4 +/- hrs.
Sent from my Nexus 7 using xda premium
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Battery life has been good so far. I'm running a 3G Nexus 7, as said previously though it is all relative to what you're doing with your device.

12hrs of moderately heavy use for the OP, and he's complaining about batt life?
Isn't the batt on these things only rated for 10hrs anyways? Maybe I'm missing something here. Google states 10hrs for reading a book or browsing the web, and only 8hrs for 720p video.
OP - i'm sure your batt life went down, but you DO realize that you're already getting more than it's rated for, right? There's so many factors that go into determining batt life, that's it's impossible to give a realistic figure.
Who knows how many apps you have in background, your WiFi signal strength, brightness of display, etc.

My battery life had been crap since day one.
Sent from my SGH-T889 using Tapatalk 2

Light day today, off the charger at 9am, this screenshot taken at 6:10pm. Used for 30 minutes according to the screen on timer, about 20 minutes of that was doing something on a server in irssiconnectbot and the rest was probably "glance at the weather" or "next meeting" etc.
It was at 100% around 2pm ish when I was in a meeting using irssibot, it dropped 3 or so percent while I used it there. I've never noticed this, but if you look close under the graph, it appears to have an bar for device awake, although it's dark blue and thin.

Terrible battery life

Ive had the note since a day before launch and i havent been able to get more than three hours screen time out of it on auto brightness and simply texting or web browsing. It also has a lot of performance issues i cant figure out. Like severe animation lag when sending a hangout message, or huge keyboard typing delays.
Ive factory reset several times, and there arent any wakelocls. Standby time is great actually.

Grims said:
Ive had the note since a day before launch and i havent been able to get more than three hours screen time out of it on auto brightness and simply texting or web browsing. It also has a lot of performance issues i cant figure out. Like severe animation lag when sending a hangout message, or huge keyboard typing delays.
Ive factory reset several times, and there arent any wakelocls. Standby time is great actually.
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Same I've tried root and xposed everything still not getting anything more then 2 hours on screen time. Even at home when I have perfect signal.

I've actually had good battery life with stock rom. But seems to have gone down a bit with custom rom a bit. Could be random
Sent from my SM-N910T using XDA Premium 4 mobile app

Im happy with mine on stock rom
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Simply saying you have a bad battery life without itentifying if you are rooted or not, without providing any information about your battery, without showing your wakelock is rather...not a good way to acquire help.
P.S simply rooting and installing xpose will not give you battery life

Mine has been great. On hyperdrive rom
Sent from my SM-N910T using XDA Free mobile app

littlegreenalien said:
Mine has been great. On hyperdrive rom
Sent from my SM-N910T using XDA Free mobile app
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That is great battery life considering you tube play. May I ask why you have fast charge off?
BAD ASS NOTE 4

BACARDILIMON said:
That is great battery life considering you tube play. May I ask why you have fast charge off?
BAD ASS NOTE 4
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i have it off because i leave phone on charger overnight and i really dont need to use it.only if im at work

Grims said:
Ive had the note since a day before launch and i havent been able to get more than three hours screen time out of it on auto brightness and simply texting or web browsing. It also has a lot of performance issues i cant figure out. Like severe animation lag when sending a hangout message, or huge keyboard typing delays.
Ive factory reset several times, and there arent any wakelocls. Standby time is great actually.
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If I were you I'd wipe and re Odin. How many apps do u have installed?

deeznutz1977 said:
If I were you I'd wipe and re Odin. How many apps do u have installed?
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That's actually what i ended up doing. Too early to tell, but I'm at an hour screen time (mostly hangouts, web browsing, email) and at 72% battery. Hasn't seemed to help performance much. I have 5 pages of apps including all the stock stuff. I lost 10% battery listening to an audible book for an hour too which seems high.

My issue is charging via pc USB port. with stock rim it would charge fine full charge as normal and the same with note 3 I had custom rom and with stock no issue. But with custom rom same thing running same apps and only playing Google music on the background the battery doesn't charge as well as it did. Not sure if there is any tips out there about that but as mentioned the only difference is that this is a note 4 the others note 3 and even on this for stock rom battery charges well with USB pc output. This is normally at work while sitting down on my desk and connected to my pc. While listening to music on headphones.
Sent from my SM-N910T using XDA Premium 4 mobile app

Mine did the same, it actually lost more power than it could charge, it went away, I'm not sure what I did, but now it's just as good as my note 3

Thanks for the input I don't want to go back to stock since these roms are just to smooth running on skyfall now. I'll likely wait and test it out for a few more days. But mine currently does trickle charge but so slow. My worry is long trips. But overall battery life is good.
Sent from my SM-N910T using XDA Premium 4 mobile app

Yesterday I got 4 hours screen time with 10% left. Android OS taking up the vast amount of the battery. That is decent, but I was really expecting more in the 5-6 hour area, especially considering my light usage model. I dont play games, or watch videos on it.