I have the SM-T700 and am running latest CM nightly for it. I have noticed in last month or so that the battery absolutely plummets if i play a game. Doesnt seem to matter what game it is but it will drop quick. For example, just went from 70% to about 10% in less than 30 minutes of playing. I can watch videos, browse internet, etc for hours and hours and battery slowly creeps down like normal with no big drops. In the battery stats when it makes the drops it will show the huge drop in the graph but based on the percentages for the different apps it wont show any that are huge battery users (for example: when it just dropped 60% in less than 30 minutes the game i was playing on showed 6% in the battery stats page). Ive seen a few other threads where folks seem to think this is a battery issue but since its only one type of app doing this it has to be a software issue in my opinion. Any suggestions? Thanks!
Does your tablet turn off before the battery level reaches 0%, or big jumps in battery power left, like showing 10% left while gaming, but after gaming it jumps up to say 40%, if so you need to calibrate the battery.
https://www.androidpit.com/how-to-calibrate-the-battery-on-your-android-device
If you have done a lot of heavy gaming on your tablet, it can cause the battery to fail a lot sooner than it normally would, but you say your battery seems fine when you watch video or browse the internet.
The T700 is reported to have an problem with the battery connector becoming loose, which give flickering screen and unexpected shutdowns
John.
Thanks. I will try the calibration on it and see if that helps. I dont game on it much and i dont think its battery failure since it will last nice long time when doing anything else. I havent tried to see if it actually shuts off when it gets to zero so maybe i will try that tonight before the calibration just to see if it does that.
The faster you drain power from a battery the less battery power you get out, example an 1000mah battery if you drain 200ma out of the battery you will get approx 1000mah out of it, but if you drain 500ma from the same battery you might only get 800ma out of it, as the battery chokes with high current drain, but you should not get as massive drains that you get, it`s complicated.
John
DaveWW00 said:
Thanks. I will try the calibration on it and see if that helps. I dont game on it much and i dont think its battery failure since it will last nice long time when doing anything else. I havent tried to see if it actually shuts off when it gets to zero so maybe i will try that tonight before the calibration just to see if it does that.
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i've tried all kinds of things and still have this issue. very very annoying. can watch videos practically all day on it but the second i run a game the battery drops insanely quick (i watched it once go from 75% to 14% in less than 5 minutes). whats annoying is the battery isnt actually that low. if i let it shutdown when it gets to 0% or restart it myself it will boot back up and say 30,40,50,60+%. The battery is lasting as long as it should doing this stuff but the stupid OS doesnt realize it. Tried recalibrating the battery- didnt help at all. Have updated to latest CM nightlies- didnt help at all. Scoured through the settings to see if there is something that could be doing this- nothing. I was hoping i could download an old CM nightly since i think its a problem in there but cant get one from their website older that a few days ago. I think late June or so it wasnt doing this so it would be nice if i could get one from back then to try. anybody know where i can find those still? (CM website has download links but they all give 404 errors) or does anybody have other suggestions to try and fix this (I am open to other ROMs at this point). Thanks!
You are running on cm try slimlp or blisspop if you're on blisspop under clock CPU to 1.5ghz and done heat problem and little battery problem fix I was on cm played games every games drops 1% every half minute or 1 min
Switched to blisspop and lowered CPU Max to 1.5...... Like blisspop but still same issue. Any other ideas?
I suggest you need an new battery, you can get them on ebay quite cheap like £9 and the spluger tool is £1 and do the replacement yourself, or buy an quality battery and toolkit for $60, see link below, or take you tablet to an phone/tablet repair shop and let them do the replacement for you.
http://www.newpower99.com/Samsung_G...tery_Kit_p/samsung-galaxy-tab-s-8.4smt700.htm
John.
DaveWW00 said:
Switched to blisspop and lowered CPU Max to 1.5...... Like blisspop but still same issue. Any other ideas?
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Exactly what issues you have
rookie12 said:
Exactly what issues you have
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Can browse web, watch movies, use most apps but as soon as i play a game the battery level plummets.
Tinderbox (UK) said:
I suggest you need an new battery, you can get them on ebay quite cheap like £9 and the spluger tool is £1 and do the replacement yourself, or buy an quality battery and toolkit for $60, see link below, or take you tablet to an phone/tablet repair shop and let them do the replacement for you.
http://www.newpower99.com/Samsung_G...tery_Kit_p/samsung-galaxy-tab-s-8.4smt700.htm
John.
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ill give that a try maybe. annoying since this isnt too old of a tablet and i really dont use it that much. the battery life is there for everything else, just not games for some reason.
Gaming and other high drain applications can really damage a battery quite quick, Tablets and Phones are not really mean for gaming as the battery`s cannot handle the fast drain.
If it`s still in warranty get it fixed or replaced.
John.
DaveWW00 said:
ill give that a try maybe. annoying since this isnt too old of a tablet and i really dont use it that much. the battery life is there for everything else, just not games for some reason.
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Try touchwiz or go back to stock Sammy ROM then play the same game still same issue then your battery is busted I had the same issue on CM with gaming go back touch wiz everything is fine no back on slim lp everything fine till now and which game do you play?
Related
Hey,
I use opendesire 3.0.2 and im having serious battery drain troubles. I can barely last 5 hours without needing to get the charger. Ive tried many roms and they are all the same so im guessing its either an app causing it or my battery is broken.
I was just wondering whats the best way to see battery usage by app, ive tried spare parts (and *#*#4636#*#*) but that doesnt show much.
Also is it usual for display to have 80% usage for display?
Thanks!
home screen, menu button -settings- about phone- battery
Had previously tried that. Thats what i meant by 80% for display, does that seem normal?
taylor162 said:
Had previously tried that. Thats what i meant by 80% for display, does that seem normal?
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Depends on what else you have used.
Does sound a bit excessive though.
hmmm tbh think im just gonna order a new battery for 15 quid of play. Other people on the same rom report 30 hours or more, mine doesnt even come close if i underclock and barely use it! No harm in having a spare battery anyway!
Im getting some weird battery stuff, as well as the Android OS drain. If I restart my phone, once in a while It drops like 20-30%. i'll go from 46% to like 18%. I see the threads about slow draining, but mine seems to happen instantly sometimes (3 different times so far in a week), anyone have solutions? Got it from someone on ebay, can I still/should I RMA?
Someone posted a kernel fix in the international GSII forum, so we're either waiting for that to get ported over here or wait for samsung to release a fix. I have that same bug too. What percent r u getting on the Android OS? Mine is usually in the 60's.
Yeah I saw that thread, and I saw the 2 things causing it. Waiting for that fix I guess, hopefully it solves the big battery drops as well as the small draining. Mines pretty high, 30-50% I believe, and then cell reception takes 10-20% with LOS
That's alot better than mine. Although, I don't have that LOS problem. I'm running stock atm. Are u on a custom rom?
Running Starburst 1.5, stock was better for no LOS. But I like the customization on Starburst. Hopefully by the end of this week the kernel we be ported over.
Most likely a problem with the battery level algo and not an actual battery charge drop. It's probably showing the correct value after the reboot.
Using battery spy I was using like 12%-15% per hour, not even doing anything. Saw online that formating the SD card might help, just did, and now im using .8% per hour. The hell, something was scanning the SD card or something. Much better now, hopefully itll last 10-20 hours instead of 6 hours.
edit: so it went back up again. At .8% it will last 2 days+, but since the events keep taking the CPU, its draining it. I got it down to 4-8% by taking the SD card out. At least it will last a little longer. Cant wait for the fix, this baby will last days after.
Damn that sucks. I just formatted my card too cuz I was running out of options. Keep us updated tho.
so I think media scanner is draining, I downloaded rescan media root from android market and before I was draining at 12% per hour, but when I disable it with the app, it goes down to 5-6%. Anyone else try? Maybe thats something thats draining.
Oh btw have u tried turning off wifi? It only drained 6% after being off the charger for 9 hours. I havent touched the phone during that time span tho. Android os still in the 50s btw.
Sent from my SPH-D710 using XDA App
These are my overnight stats when I was sleeping. It's usually worse when wifi is on.
manekineko said:
Most likely a problem with the battery level algo and not an actual battery charge drop. It's probably showing the correct value after the reboot.
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this is almost definitely correct. battery doesn't drop 15-20% because of reboot...the reading is wrong. Battery drivers have been bad on a few of the latest android phones. Just look at when your phone stays at 99% for the first 3 hrs of use each day...what, does it just get really inefficient in the afternoon because of food coma from lunch?
toprock23 said:
Oh btw have u tried turning off wifi? It only drained 6% after being off the charger for 9 hours. I havent touched the phone during that time span tho. Android os still in the 50s btw.
Sent from my SPH-D710 using XDA App
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Trying now, seems to be charging faster too. I was mainly on wifi because cell standby was really high, keep getting LOS. But maybe I wont with wifi off now, and i'll see how battery does. ill keep you updated.
Still bad. Can only wait for the patches/fixes. 8 hours doing nothing almost. Sigh.
edit: sent to the galaxy support on twitter, see how that goes.
http://twitter.com/#!/GalaxySsupport/status/124174089085652992
Hey man, I got one more tweak for u to try. I just rooted my phone w/ the latest zenomax kernel and Starburst 1.5. Download setcpu and create a profile for "screen off". Set it to 200-500mhz on demand. In theory, this should prevent 100% cpu utilization while the screen is off. I'm testing this myself atm, so I can't give u my battery stats yet.
toprock23 said:
Hey man, I got one more tweak for u to try. I just rooted my phone w/ the latest zenomax kernel and Starburst 1.5. Download setcpu and create a profile for "screen off". Set it to 200-500mhz on demand. In theory, this should prevent 100% cpu utilization while the screen is off. I'm testing this myself atm, so I can't give u my battery stats yet.
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Think I have the v3 version and 1.5 as well. I have setcpu set to 200-400 powersave. ive tried others and same. Suspend and events/0 keeping eating at the CPU. Thanks for the suggestions though.
figured i'd chime in here. i've had days where the battery was fine and days where the battery was absolute trash. it's happened on stock, and it's happened on root. but it almost always seems to coincide with LOS. the first picture is one of several instances where i've had pretty fast drain followed up by an instant dump in charge under normal use. it's strange how after the drop, it slowly works back up then levels off and drains normally. the 2nd pic is from today. i left my phone at home on accident when i went off to work, and when i returned, i had LOS and this battery stat. you can tell where i lost signal . the last pic is from yesterday while i had the phone at work all day and light use; a nice consistent drain.
FU battery drops and FML
Ok so i read all the posts in this thread and i understand theres a issue that effects the phone from even knowing what the battery % is. i had to post these though. i was at 47% then rebooted my phone. phone boots up and yehhh! woop woop 8% now mind you if you look at the graph it shows a nice constant cerve downward but steady because i was using my phone the entire time. now after the restart/batery drop of 40% i kept using the phone constantly but its funny how it took me over a hour of screen on to go from 8% to 5% !!!!! i bet to get from 5% to 1% it will take 2 more hours for sure. you can see the graph start to flatten out like its a super battery after the 40% drop because it didnt really drop to 8% !!! normally i wouldnt care since my phone battery last just as long, it just goes down really slow from 8%-1% but at 5% it auto dims screen and wont let me use my camera for the next 2-3 hours while i knock off the remaining "4%" of battery left. fml
Get Starburst v1.6. He removed DRM processes which should lower Android OS usage and thus battery draining. Plus with the LoStKernel, I haven't had any issues with losing signal since.
Also, use Titanium backup to remove running services that you don't need. I got rid of the stock email client, digital clock, media/social hub if you don't use those. They don't take up a lot of ram, but every little bit helps.
My battery life has improved after battery calibration. I suggest you calibrate if you didn't already so your battery usage graph may be more accurate. Hope this helps.
Thanks for the tips! I was wondering how you would calibrate the battery. Is it the same as wiping battery stats from CWM?
Is this normal?i bought a 430 euro device that has a screen time of about 4.5 hours.what is going wrong?
maouris1985 said:
Is this normal?i bought a 430 euro device that has a screen time of about 4.5 hours.what is going wrong?
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You should search around a little to find out some power saving tips, all those notifications you have opened aren't helping. Are you on a custom rom? There's alot that plays in part like screen brightness and sync. I was getting about 10% a hour depending on what I'm doing. There are alot of threads about the same problem so i would suggest trying to find them in search bar and read away. There are alot of tips with some.
mikep2323 said:
You should search around a little to find out some power saving tips, all those notifications you have opened aren't helping. Are you on a custom rom? There's alot that plays in part like screen brightness and sync. I was getting about 10% a hour depending on what I'm doing. There are alot of threads about the same problem so i would suggest trying to find them in search bar and read away. There are alot of tips with some.
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I ve done everything i could,i set the brightness to 10%,disabled everything except wifi but didnt notice any major difference.what i did wrong when i first bought it was that i let the battery fully discharge first,i downloaded a draining program and let it drain the battery.do you tnink that i may have damaged the battery?btw what i do with the tablet is playing clash of clans.the firmware is the one from the factory,didnt change anything,kitkat 4.4.2
You can buy a 10.000€ tablet and the battery will still be crappy if you play Clash of Clans. That game just eats the battery.
maouris1985 said:
I ve done everything i could,i set the brightness to 10%,disabled everything except wifi but didnt notice any major difference.what i did wrong when i first bought it was that i let the battery fully discharge first,i downloaded a draining program and let it drain the battery.do you tnink that i may have damaged the battery?btw what i do with the tablet is playing clash of clans.the firmware is the one from the factory,didnt change anything,kitkat 4.4.2
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Clash of Clans will kill battery quick.I let my girl play Farmville on my tablet and it would shut my tablet down and kill the battery very fast.Also I've learned not to let battery get to low or let it die and shutdown. I felt the same way you did and bought a new one. I use my tablet alot and charged it over 900 times. I didn't get a cheap one and wanted to get a little more expensive one, but what a difference. My tablet lasts alot longer now. Battery's don't last forever and can go bad. I also asked the people what I can do different and they told me to not let it go below 30%. I chose one a little more money cause I didn't want to get a bootleg one from china and have the same thing happen. Maybe root and try a custom rom. They run alot batter then stock and they take alot of stuff out you don't need.
I can confirm that playing games drain battery very quick. turning down the brightness add some minutes.
Hi, I bought my wife a used 2014 edition some months ago and it seemed to work great but the battery didn't last very long. Recently I started playing a few games on it and realized that the problem was worse than I thought. It would say it was at say 60% but after 5 minutes playing a game it would go into power saving mode and be at around 14%. So I bought a new battery and it does the exact same thing! When I go into the battery setting it doesn't show anything using much power but something drains the battery as soon as you use it for almost anything.
Has anyone seen this before. If it doesn't tell me what app is draining the battery, how can I fix this? thanks
you are preaching to the choir. this is a big problem with these. the batteries are honestly easy enough to change but it is pretty much impossible to find an actual samsung replacement. they are all cheap knock offs that cant handle the voltages of the tablet which causes its own set of problems. I got one and it does help get more out of it but when you do anything too intense especially with less than 60% the thing will just shut off. total bummer. there are a lot of batteries out there just be careful of what you buy. and if you find a good replacement let us know!
I found a thread that seems to attribute this to faulty battery connection to the motherboard and someone who can weld can fix the problem. Has anyone else had success with this? thanks
nate39 said:
Hi, I bought my wife a used 2014 edition some months ago and it seemed to work great but the battery didn't last very long. Recently I started playing a few games on it and realized that the problem was worse than I thought. It would say it was at say 60% but after 5 minutes playing a game it would go into power saving mode and be at around 14%. So I bought a new battery and it does the exact same thing! When I go into the battery setting it doesn't show anything using much power but something drains the battery as soon as you use it for almost anything.
Has anyone seen this before. If it doesn't tell me what app is draining the battery, how can I fix this? thanks
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As graffix31 said, this is a common issue. If you contact Samsung, they should be able to tell you where you can get a direct factory replacement battery (if they are even available still). Other than that, all you can really get is aftermarket ones that, like graffix31 said, can't handle heavy loads. I can vouch for that myself. Replacing my battery was definately an improvement over the old battery. I still have some issues though, but I've found ways to avoid them. If you are rooted, with any cpu management app, you can shut down 1 of the cores and reduce the maximum output of the others. This prevents mine from overloading the battery. It isn't ideal, but it works.
Hi guys!
I have a serious problem with a used A5 (2017) I got from some friends. The battery life is abysmal. I already changed the battery and it didn't change anything.
It is running on Android 8 Oreo. The most serious problem, I think, is that the phone even discharges when it's powered off. I tried using the latest hadesrom, but it didn't changed a thing. Lifetime is around 12hours, doesn't matter if I run some apps or just let it lie around in standby. I tried factory rests and some battery saving apps... nothing works. Is there any way to get better battery life? Thanks in advance!
RavenMM said:
Hi guys!
I have a serious problem with a used A5 (2017) I got from some friends. The battery life is abysmal. I already changed the battery and it didn't change anything.
It is running on Android 8 Oreo. The most serious problem, I think, is that the phone even discharges when it's powered off. I tried using the latest hadesrom, but it didn't changed a thing. Lifetime is around 12hours, doesn't matter if I run some apps or just let it lie around in standby. I tried factory rests and some battery saving apps... nothing works. Is there any way to get better battery life? Thanks in advance!
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You could try the naptime app. But I don't think my battery life is any better than yours.
The a5 2017 has a famously good battery life.
I am not a heavy user - make and get few calls and mainly use it for receiving emails and a few texts plus a bit of web browsing.
Occasionally listening to podcasts.
3 days battery life is easy for me - reckon I could get 5 days if I just left it sitting quietly.
If it's going flat quickly even when switched off, it sounds like a fault somewhere.
Don't know what else to tell you.
robjg63 said:
The a5 2017 has a famously good battery life.
I am not a heavy user - make and get few calls and mainly use it for receiving emails and a few texts plus a bit of web browsing.
Occasionally listening to podcasts.
3 days battery life is easy for me - reckon I could get 5 days if I just left it sitting quietly.
If it's going flat quickly even when switched off, it sounds like a fault somewhere.
Don't know what else to tell you.
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I never tried letting it sit, but if I just left mine alone it would last for days too. But if I am gaming on it, it will go down to around 50 percent at noon.
wow - 3 days life battery!! I can hardly get to 2 days, without heavy us - but I would never try to change the battery -> sounds too complicated
One thing that is worth looking at is the Always on Display (AOD).
I found it sucks a lot of power despite the claims that it 'doesnt use much'. It seemed to use around 1% an hour - I guess thats around a quarter of your battery in a day. So unless you find it useful either turn it off - or set it on a schedule for when you actually want it to be on.
Battery life is always sujective and depends on what your phone is doing - gaming will burn through a battery like nothing else.
The OP said the battery drains even when the phone is switched off - That sounds like a hardware fault. The battery will gradually drop when switched off - but it should take months for a healthy battery to drop much if the phone is switched off.
robjg63 said:
One thing that is worth looking at is the Always on Display (AOD).
I found it sucks a lot of power despite the claims that it 'doesnt use much'. It seemed to use around 1% an hour - I guess thats around a quarter of your battery in a day. So unless you find it useful either turn it off - or set it on a schedule for when you actually want it to be on.
Battery life is always sujective and depends on what your phone is doing - gaming will burn through a battery like nothing else.
The OP said the battery drains even when the phone is switched off - That sounds like a hardware fault. The battery will gradually drop when switched off - but it should take months for a healthy battery to drop much if the phone is switched off.
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1 percent an hour doesn't matter to me lol. I am a heavy user so I charge every day anyway.