Battery Drain in 2 Hours - Asus Transformer TF700

I had this problem before I flashed the ROM, but that was several years ago so I can't compare between now and then, but it is clear that my device drains battery abnormally fast. I would say it lasts about 2.30 hours and it gets very hot over time.
To give a perspective, the miscellaneous battery drain went from 33% to 71%
Granted, I was installing new apps during that time, but I still don't see why it should drain so much, especially when it is miscellaneous that drains the most.

Buddy! You got a rom on there for just 4 hours! Way too soon to tell anything about battery usage and forget the on board battery statistics. Might as well read your coffee grounds...
Plus, tons of stuff is going on in the background after flashing a rom, indexing is one of them, AND Katshmallow is overclocked which makes the tablet run on the hot side anyway and eats battery. That's the price to pay for speed.....
Run it for a week, install Battery Battery Stats, maybe Wakelock Detector too, then we can talk about battery drain....

Related

Foyo update...Battery life shortened ?

Has anyone noticed their battery life seems shorter since the update ? I installed the official froyo update last night and it seems I'm running out of juice much quicker than before.
At first mine ran down faster. I ran it all the way down. Charged it. And ran it all the way down again and charged. It seems back to normal.
I didn't have any issues. Maybe you changed something else as well? Could always try a few recharge cycles and see if it stabilizes..
I was running the leaked 2.2 and I flashed to official 2.2. My battery life is almost double what it was. I can't complain one bit about battery life, although I have other gripes with the official Froyo release.
I'm with icepop on this one.. I was running the stock rogers rom pre-update and now with the official rogers 2.2 I'm getting at least double the use before having to charge again.
I'm having battery issues with the new stock Froyo. I lose a huge amount of juce when in standby. I thought I may have my widgets updating too often so I charged it up and put it into airplane mode last night. The phone lost about 1% per hour in airplane mode. IDK what is normal but that seems like a lot to me. I didn't have any apps running, except my alarm was set for the morning.
I have SystemPanel installed and my cpu load NEVER goes below 10 percent, even in airplane mode. I suspect this is a large part of the issue. In app history, system and system processes are always on the top of the list and are around 3% each. IDK what controls this or how to lower it. I would love some feedback from someone else with SystemPanel just to see how our numbers compare. Overall the battery life I'm experiencing is pretty terrible and a buddy of mine's Fascinate has much better battery life (hence something must be wrong somewhere). He and I were skiing all day over the weekend and when we got back to our cars, my phone was half dead and his had lost almost zero juice. This displeases me.
mine's was better actually. but i didnt stayon it for long
My initial results with 2.2 were very bad (10% drop per hour when idling). I reset the phone back to 2.1 then re-installed 2.2. This did not help. Now I did this again (2.1 then 2.2) but this time I have not re-installed my apps and have not rooted (yet). So far, battery life seems to be normal. I suspect that some of my applications might mis-behave when installed on 2.2. I am planning to add them slowly and watch the battery.
Not here, seems the same to me
Mine is terrible ! I don't know what it might have been on 2.1 as I upgraded fairly quickly. Essentially I charge all night and then disconnect from power at 6:30am and then by 4:30pm I'm out of juice (phone shuts off). Any ideas here? I'm not running anything extravegant (email only) and hardly make any calls.
Whenever you flash to a new ROM, wait for at least a week of normal usage before you judge the battery life. The reason is simple, your battery stats are reset after ROM flash and your new OS needs time to learn how your battery drains before it can give you accurate readings.
If you can't wait for that long, you need follow the battery calibration thread to force a manual calibration of the battery.
I'll give it a week and see how it is then. Definitely is draining much quicker now though. I think It acted similiarly when I first got the phone as well. If I recall correctly the batter life sucked when I first got it, but then a week or so seemed to get much better.
I did the manual battery recalibration (let it die, charge while off, turn on and bump charge...etc). Last night I lost about 2.5% of battery per hour while in standby. This seems improved since calibration but its still pretty terrible IMHO. Is this in line with the amount of drain other are getting or am I draining more than usual?
TheSopranos16 said:
I did the manual battery recalibration (let it die, charge while off, turn on and bump charge...etc). Last night I lost about 2.5% of battery per hour while in standby. This seems improved since calibration but its still pretty terrible IMHO. Is this in line with the amount of drain other are getting or am I draining more than usual?
Click to expand...
Click to collapse
Running stock since purchasing the Captivate back in August, and so far battery life actually seems to be routinely as good if not better than 2.1. I must admit I didn't use my phone a huge amount yesterday (except for about an hour plus of downloading a bunch of wallpapers off Zedge for some ungodly reason lol), and after 18 hours of the phone being on I was still over 50% battery life left. 2.5% in standby doesn't sound like all is well - you must have something running in the background or similar issue. I have a live background, sync 5 e-mail accounts (granted, only one of those is every 15 minutes - the others are every thirty minutes, every hour, and once a day on two of them), and with light use I am getting over 40 hours with 2.2 so far (about in line with 2.1, but seems maybe just a little better). Heavy use I am dropping more like to the 12 - 18 hour mark (heavy use for me means the screen on more than off, actively playing games or using apps, large amounts of texting, etc. Solid game playing I haven't figured out a drain yet, but on some games it seems like I can drop almost the whole battery in close to 10 hours). At your rate of 2.5% per hour in standby you would only make it forty hours without even using the phone. I have been using mine just a little this morning (FB check, logging in to one of the desktops at work remotely to make some changes, live background running, WiFi sleep policy is set to when screen is off, but to be honest that is about it) and I haven't moved off the 100% mark yet and the phone has been unplugged over an hour and a half.
All that said though, as other users have stated you might want to give it a little more time for the system to recalibrate the battery usage. I would definitely check your processor usage though regularly to see if anything seems 'off'. One thing that caused me problems was that my SNS service would be running but then would get stuck in a pattern of 'Restarting' - would drain my battery rapidly.
It has been said that bettery drain is not linear. First 5% goes real fast. So, you need to judget the average over a day of use, not first hour or so. I'm still in first week of ROM flashing. So I can't confirm anything yet.
See my battery stats recalibration steps here:
http://forum.xda-developers.com/showthread.php?t=765656
Also, TheYar has a great write-up on identifying battery drain issues here:
http://forum.xda-developers.com/showthread.php?t=806211

Battery life boost? It worked for me!

So this is probably a big issue with most people is how fast the battery drains.
I'll get right to the point. I swap roms like I change my underwear... every couple of weeks... ( that was a joke...) basically every day. What I've noticed is what happens to my battery after swapping roms it tends to read the battery life incorrect. EVEN after a battery stat wipe.
I charge my phone to 100%. Let it drain until it gives me a battery warning. (which is usually below 15%) then I remove the back cover and just yank the battery ( I know there are risks of doing this but I've done it a TON and never had any issues)
Funny thing is though, right after I pull the battery and then replace and reboot the phone, my 15% battery life left... is now a crazy 25%-30% left!
So android is reading the battery level incorrect. (even after a battery stat wipe)
Anyways after putting the battery back in, i'll charge it to 100%, then use the phone as needed from then on I have NO issue with battery life and it usually lasts me 15+ Hours with moderate to heavy usage IE: games, browsing, music, Facebook, etc.
Let me know if this drastically improves or at least improves your battery AT ALL like it does for me...
Pretty common in most 1st posts for rom threads and a general calibration method. Thanks for sharing anyway
Sent from my Sensation using xda premium
Well according to the 10+ battery issue threads I highly doubt its "common" for people to actually do it. So for those who are looking for something other than stupid apps that claim to "re-calibrate" your battery, or battery stats which claim to "reset" your battery which in my experience really doesn't solve anything, its just one more thing to add to the "hell, lets see if it'll work" option.
Errrrmm... This is not the fix. Battery reading jumps up after reboot, as reported by hundreds of users (including me) and then depletes rather quickly to real value.

Battery consumption

Is my battery life ok?
I think my battery is losing capacity or something is draining it a lot since few months ago i still could squeeze out of it about 3.5 hours screen on time, nowadays i get barely 2 hrs.
What also bugs me is that when i unplug it from the charger it loses top 10% very quickly. It goes from 99% to about 90% in just an hour or two in standby. Here are some screenshots, I don't see anything suspicious, still, I get less from it than before.
All screenshots are standby with everything shut, no sync, no internet on, nothing, it consumed 15% in about 9.5 hours and before, i got to lose about 1% in about 10 hours in standby.
Stock austrian rom 2.3.6. rooted.
Why are you still on GB?
lol. Because of the battery life and need fully working rom, but battery is very important to me. Tried stock ICS, after 2 weeks had to get back to GB cause of the battery.
Also, is there something wrong when battery monitor reports high kernel consumption? Sometimes in standby when there is more battery drain it shows high kernel consumption
More than 100 views and no comments.
Can you at least say is it normal for launcher to use about 10% of the battery? It's Holo launcher

[Q] Battery

I know I know, that the battery for this device isn't the best. What I've noticed that the battery in my device seems to be draining a little faster. I have had the phone since it was released, I have not changed ROM from what is listed in my sig. and now I'm getting about 12 hrs of life, while I was getting about 24 hrs.
Usage has not changed.
Is it possible that the battery is not maintaining its charge?, although it charges to 4206mv according to the battery calibrator app, and has charged to that level for months and months.
Any thoughts?

Bad Battery life or Bad Battery on Nexus 5 with 5.1

Hello,
I've searching for like 2 months about problems with battery life and Lollipop with nexus 5. I understand the issues but since it was released, i never had much problems with it. I used to have 2h SOT for like 40% battery or so.
My daily routine allowed me to reach home with a bit more than 50% battery with 2h SOT more or less. (a lot of messaging on viber/whatsapp)
But something changed since 1 and half months ago. I can no longer do the same and it seems that i have a CONSTANT battery drain. I remember when i unplugged my phone i would reach my workplace (1:30h after unplug) i would have like 2-4% less battery depending on the usage. Currently when i get out of home the battery is already at like 92% or more depending on the usage. If i let the phone stay idle all the time, i usally get home with 30-40% battery now. I'm already thinking that my battery has gone bad. This started to happen from one day to another and i never let the battery stay too much below 30% usually, but nowadays it's impossible to predict the battery life since some days it seems to drain more than others.
I've used some apps to monitor the usage but i really don't understand much about it and can't seem to find a pattern. I've already did factory reset with all Lollipop versions and i remember doing a KK regression for some hours but the drain seemed like it was still there (can't use KK on my nexus 5 anyway, it feels weird after Lollipop experience ) but i didn't even fully charged the battery as i remember. Anyway if it would be an app, there should be some kind of logging in battery stats which doesn't, and i can't think about anything else.
I finally gave up and decided to ask help here, since i don't know what else to do. I'm actually leaning towards getting a nexus 6 but after reading about so many issues (screen/battery life/burn-in) i'm not sure what else i can do with my nexus 5.
If anyone can give me a hint i'd be very grateful
PS: already tried Cataclysm ROM and using currently ElementalX kernel. I notice a bit better battery life with ElementalX but i think the pictures speak for themselves.
Judging by that constant drain with very little shown awake time I'd install Better Battery Stats and check for kernel wakelocks. I had a similar situation with a wake lock from using a wireless charger that did not show in the regular battery stats.
AndrasLOHF said:
Judging by that constant drain with very little shown awake time I'd install Better Battery Stats and check for kernel wakelocks. I had a similar situation with a wake lock from using a wireless charger that did not show in the regular battery stats.
Click to expand...
Click to collapse
i already installed it before, but currently don't have it installed. I have Wakelock Detector app i can post a screenshot if helps
Installed Better Battery Stats, i'll post results tomorrow (battery at 19% already).
As promised, there's still some battery left but i didn't even use the phone today mostly... in days like these i should be over 70% as usual or maybe close to 80% that i remember.
Can't seem to find the cause
bump i guess
will some full discharge cycles fix this ? iirc that can make things worse.
I feel your pain...when I was on Kitkat, I'd get to work running just Waze and Pandora and my battery life would be at 80%. Installed Lollipop 5.1 and now half way through my trip (15 minutes of use) the phone shuts down with a dead battery. Maybe it's just a coincidence that my battery decided to give up the ghost at the same time I install 5.1, but I find that very odd...the phone is only a 1.5 years old...lithium battery's tend to last 2+ years and even then they don't fall off a cliff in terms of capacity. At this point I think I'll buy a new battery and see what happens, LG OEM are about $25 on Amazon.

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