Database Users

Under Volting @1/200mhz = FASTER CHARGING!!!

This is Ksmullins, posting this for a team member.
"I just finished my test for the Mugen 1950mah (video below), and I have noticed in past chargings that it was faster by a good 15% from when I normally plug in and remove. So I figured it must be because I hit a great UV at 200mhz, -125mv on core and internal, which allows the battery to charge faster given the fact that when charging the phone stays at 200mhz. So providing the cpu with less power will provide the battery more power while charging. IIll be providing proof of this soon."
Video of phone in use with Mugen 1950mah
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You could also do low power mode (charging while phone is off)
sent from my touchwiz 4.5-ed epic

Always had a hunch this was true thanks both of you

Soo ur saying if I charge my phone while at something like 100-200 it will finish charging quicker and my battery will last longer?
Sent from my SPH-D700 using XDA App

lilajrestnom said:
Soo ur saying if I charge my phone while at something like 100-200 it will finish charging quicker and my battery will last longer?
Sent from my SPH-D700 using XDA App
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No, what Im saying is when charging the phone dosnt go into deep sleep, it keeps the cpu at 100mhz on the og epic and 200mhz on the epic touch. So if your UVing tHose steps you will see improved recharge times.
Sent from a phone with kNOw CIQ

So do you manually undervolt whenever you plug your phone up to charge? Are you using an app that does it for you and keeps your phone from sleeping?
I have cpu master pro but removed it because it was lagging my phone out.

I UV'd 125mv and it charges noticably faster. But if I UV 150mv it takes 10 minutes of failed boot attempts to finally boot lol.
Sent from my SPH-D700 using xda premium

System using majority of battery life

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Android system used 46% of battery! Ideas?
Sent from my Nexus 7 using Tapatalk 2

photon4glover said:
*snip*
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What's so weird about that? Your device has been on for nearly 8 hours and it's at 73% battery life. You've clearly not been using the device very much in that time, so obviously the system processes will have a higher percentage than anything else.

Exactly the same thing happened with me today. I've never had android system consuming more battery than my screen, and today the android system battery consumption stood at almost 50% (twice that of screen). The tablet was idle for around 12 hours (WiFi off) and the battery fell by around 15%. Never ever happened before.
I upgraded to 4.2 a couple of days back.

veryjiggy said:
Exactly the same thing happened with me today. I've never had android system consuming more battery than my screen, and today the android system battery consumption stood at almost 50% (twice that of screen). The tablet was idle for around 12 hours (WiFi off) and the battery fell by around 15%. Never ever happened before.
I upgraded to 4.2 a couple of days back.
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Click to collapse
Same its never done previous to 4.2
Sent from my PG86100 using Tapatalk 2

Do you use Llama or any other app like that by any chance? I'm just trying to figure out what could be the root cause of this
Sent from my Nexus 7 using xda app-developers app

same for me with the new 3g 32gb and 4.2
tablet been on 3 hours and 36 mins done nothing with it and its already used 25% battery
Android OS is at 64%
old 16gb with 4.2 on, same time and just sitting doing nothing only used 3% battery
Android OS at 4%
any thoughts ??
Bob

Haven't been able to figure out the reason unfortunately. If I do, would definitely post on here. Hope you guys would do the same.
Sent from my Nexus 7 using xda app-developers app

[Q] Nexus 4 battering keeps discharging and recharging while plugged in

Hi everyone,
I searched the forum for a satisfactory answer yet I don't seem to find one so I'm going to ask here...
I have the habit of plugging my Nexus 4 as soon as I get home, keep it plugged overnight, and unplug it the next day when going to work. About two weeks ago I noticed that occasionally the phone indicates that the phone is fully charged yet, some minutes afterwards it indicates that the battery is at 98-99% and is charging again. I was quite intrigued so I started using some battery applications (e.g. Battery Widget Reborn) and I now notice that the "problem" is quite frequent and happens every single time the phone is plugged (I tried withe the original USB cable that came with the phone as well as with other cables). Attached is an image showing the weird pattern that I'm having...
Does any one have the same problem ? Anyone cares to explain to me why this is happening ???
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Isn't that done on purpose? You don't want to keep charging at 100% so the phone discharges after reaching 100% for a while.
Sent from my Nexus 4 using xda app-developers app

rasengan82 said:
Isn't that done on purpose? You don't want to keep charging at 100% so the phone discharges after reaching 100% for a while.
Sent from my Nexus 4 using xda app-developers app
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When 100% is reached, the battery, for the best of my knowledge, is not used... Therefore, I find that it discharges very very quickly for an unused battery !

Mine does that as well. I thought that was normal?
Sent from my Nexus 4 using Tapatalk 4 Beta

It's Normal as phone batteries reach 100, discharge a bit and stays there. Btw ROM + Kernel?

sigma392 said:
It's Normal as phone batteries reach 100, discharge a bit and stays there. Btw ROM + Kernel?
Click to expand...
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Just stock Android 4.2.2

How quickly it uses that small amount of battery that kicks it back into charge mode is going to depend on what you have running and syncing in the background.
Sent from my Nexus 4 using Tapatalk 4 Beta

Battery drain problems... funky wakelocks... Please help!

I'm having a funky wakelock issue. Over the last couple of days I've had a PhoneApp partial wakelock that's been running almost continuously while the phones been off the charger. Today a new one related to the phone popped up. I've attached screen shots and dump files from better battery stats so hopefully someone can help me figure out what's going on.
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Sent from my SM-N900V using Tapatalk

I also have the log cat file if needed.

Do you have any MOD that enables the Torch/Flashlight to work from the lockscreen by long pressing volume up or down? I used to have that on and it killed battery from my experience

I do have that mod enabled although I have had it enabled for months and have not had any issues with it draining battery.

nateohio said:
I do have that mod enabled although I have had it enabled for months and have not had any issues with it draining battery.
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Yeah I would disable it for process of elimination to see if that's the cause.
Or another route is do you remember if you restarted your phone since you unplugged it off of the charger? Try to restart your phone everytime you take it off of a charger with the MOD enabled to see if that corrects it

I don't know why this fixed it but it did. I wonder what the developer changed in the coding to cause this to be an issue now
Sent from my SM-N900V using Tapatalk

I read that not only the long press for torch but also the long press for music controls did the same thing. Thought it would be a great idea until I read about the power drain
Sent from my SM-N900V using XDA Premium HD app

With the note 3's massive battery I was still finishing an 18 hour day with 40-50 percent remaining but anything that hits battery life, in particular anything that keeps the phone from deep sleeping, has got to go.
For me it's not so much about day to day battery life as it is about long term battery health
Sent from my SM-N900V using Tapatalk

[Q] Is this normal battery drain?

Ok guys, I keep hearing people ranting and raving about this phone's battery, however I feel that mine is either faulty or everyone else is exaggerating. On a typical day, of normal usage, heavy web browsing, occasional 10 minute game session, I can get about 4 hours screen on time, and about 14 hours total time before it's dead and I need to charge. I have minimal wake-locks now that I've figured the majority of them out, and keep location services on device sensor only. My device is deep sleeping more than being awake, and will last quite a while while asleep, battery doesn't seem to abnormally drain while asleep. Every time I've been able to track it down to a wake-lock issue if it has.
It's draining very fast (it seems) while screen is on though. Wifi calling is almost always on the majority of the time.
Any ideas? Is this way off? Or is this the norm?
I've done the usual factory restores and all that, and still no improvement.
Thanks!
Example:

Are you using a custom kernel? You could try dorimanx's and heavily skew the CPU towards a lighter load
I used to get 4h on screen time for quite a while, but k realised that it was cos of 4G @ and the way I used my phone. If you read a lot and hardly launch or close anything the battery life gets better very quickly
Sent from my LG-D802

That seems about right.
On stock I get between 4 and 6 hours screen time and about 24 hours on battery. Being on WiFi rather than 3g helps a lot and turning down the screen brightness.
Sent from my LG-D802 using XDA Free mobile app

Do you guys have similar averages? (Seen at bottom of image)
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Sent from my LG-D801

Yep.

Thanks. ✌????
Sent from my LG-D801

I have 30 minutes more on average, but yeah its normal on Kitkat. Jelly Bean was better
Sent from my LG-D802 using XDA Premium 4 mobile app