Develop Bugs

[Q] Battery issue?

Here's a screenie from my battery screen, I know the battery is a common problem, but when I see shots from others battery screen their screen and OS percentages seem much lower. My screens set at about 20-30%. Just wondering if I'm doing something wrong, or any suggested apps/roms you have. Rooted CDMA.
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Sent from my Galaxy Nexus using Tapatalk

Te longer you have the screen ON and are using the device then the more power it uses over a period of time

Tap on the screen % to see your screen on time. This device currently sucks a lot of power through the high pixel display. You can switch to manually adjusting seen brightness to save some battery.

irb123 said:
Here's a screenie from my battery screen, I know the battery is a common problem, but when I see shots from others battery screen their screen and OS percentages seem much lower. My screens set at about 20-30%. Just wondering if I'm doing something wrong, or any suggested apps/roms you have. Rooted CDMA.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Looks fine to me. My android os is usually around 15% or so depending on how much I use the phone and I get great battery life.
Sent from my Galaxy Nexus using xda premium

@rbiter I am curious how long has your Galaxy Nexus been running before it turns off? I have gotten about 8.5-9 hours the one time i ran mine all the way down. That is with auto brightness on and lots of browsing and no games and some calls.
Frankly I have been disappointed with the battery performance so far. I love the phone of course, but just wished they would come out with replacement stock batteries so I can go as long
as i need, without having to swap out the backs etc.

@rbiter I am curious how long has your Galaxy Nexus been running before it turns off? I have gotten about 8.5-9 hours the one time i ran mine all the way down. That is with auto brightness on and lots of browsing and no games and some calls.
Frankly I have been disappointed with the battery performance so far. I love the phone of course, but just wished they would come out with replacement stock batteries so I can go as long
as i need, without having to swap out the backs etc.
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You could always just use the extended battery w/ the extended battery back cover. That cover works also fits pretty well with the stock battery.

Under Volting @200mhz = FASTER CHARGING!!!

This is Ksmullins, posting this for a team member. Just an update on what the battery can do with an Epic Touch.
ecooce
"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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Also charging with a USB charger for an iPad, 2A, will charge the battery pretty damned fast too.

i could've sworn this was common sense.

I get a day and a half out of my battery anyway, why make it this slow.

What's the general consensus now regarding when to charge the battery...keep it charged up all the time or let it drain down low (15% or less) before charging??
(I have DAFS, just so much conflicting info)

I say 15 - 20% charge it. But really I wouldnt worry about it.
Sent from my SPH-D710 using xda premium

60% of the time it works every time.
Sent from my SPH-D710 using XDA App

TeamERA said:
I say 15 - 20% charge it. But really I wouldnt worry about it.
Sent from my SPH-D710 using xda premium
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That's usually as low as I go. What's up Kevin!
Sent from my SPH-D710 using xda premium

guys i made a huge discover! the lighter your car is, the faster it can get to 60!

It is interesting to learn that a 2A charger will actually charge the battery more quickly. Given the heat generated by these devices when being used and during a charge cycle, I was almost certain that the E4GT would include both current and heat restrictions to prevent this this from physically burning up. I recall my TouchPro being unable to tether and charge at the same time... it would get too hot and just stop charging as a safety restriction.
I've had both my Epic and Epic Touch reach and sustain 52C (125F) while charging (1A) and playing Tiny Tower. Increasing the current can only raise this peak temperature, which is nuts considering that an internal battery temp of 125F results in a very, very hot back cover. The Epic Touch screen also gets hot, almost burning to the touch. This can't be good for longevity lol

JohnCorleone said:
That's usually as low as I go. What's up Kevin!
Sent from my SPH-D710 using xda premium
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Hey John, you guys really do have some annoying people over on the et4g forum, and not the light hearted kind. To the person that keeps puttng down the OP, please have some respect to the fact that not everyone knows what you know.
Sent from a phone with kNOw CIQ

SetCPU profiles?

Hello all... I'm new to Setcpu and have been able figure out how to OC and UV while still keeping everything relatively stable. As of now I'm experimenting with making profiles, I was wondering if someone could post a screen shoot of their profiles and pass on any advice. I am running TNZ Blend 2.6.2 with the Hitman kernel. Here's a screen shot of what I have so far.
T.I.A.
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Sent from my SPH-D710 using xda premium

The only thing I would comment on is your "screen off" there is no reason for it to be scaling/jumping from 800-1200 "ondemand" while the phone is not being used or the screen is off in general, just have 800 low and high or have 800 as your high and set it to "performance" so that there is no polling being done and it will set itself to the high value which would still be 800 anyway.
You might have a reason for that setting, just trying to save you a little bit more of battery juice.

Definitely bring down that screen off! I have mine set to 200-500 ondemand. I'm sure it'll save you a lot of battery. Also the battery 100% is kinda pointless because that's what the main profile is for. And expect your phone to get extremely hot if you use it while charging since you have it overclocked. I did that same mistake now I keep it at 200-800 to avoid the over heating.
Sent from my SPH-D710 using XDA App

Thanks guys
Sent from my SPH-D710 using xda premium

Just a recommendation...you should give tegrak a go. I find it to be much more beneficial than setcpu...

Why scale cpu depending on the battery level? I prefer scaling CPU on my phone by the temperature. 1.6Ghz normal usage and then gradually scale it down if it gets too hot. I bought this phone for its performance, not battery life, which actually is pretty amazing for such powerful device.

1brainsurgeon said:
Just a recommendation...you should give tegrak a go. I find it to be much more beneficial than setcpu...
Click to expand...
Click to collapse
be careful with Tegrak, as it doesn't work with some of the non stock kernels, and will freeze your phone for sure..

Pretty good. You don't need the battery>100% profile. Adjust that from the main page.

wase4711 said:
be careful with Tegrak, as it doesn't work with some of the non stock kernels, and will freeze your phone for sure..
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Yikes! I wasn't aware of that. Guess I'll do a bit more research on that before I fire out recommendations. Note to self...not all devices have the same setup as yours

Battery drain on 4.2.2

Been having battery issues ever since I flashed a 4.2.2 ROM.. I think its the modem. Being on like over drive, draining my batt.
Or is it 4.2.2? I tried all the 4.2.2 Roms that there is for our phone. And its seems to drain at the same rate every time. I don't know of its just me or can my radio be the cause of it. Or android 4.2.2??
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I have great battery life.... Try ktoonsez kernel with your rom. I'm also using ktoonsez battery control in ktweeker with CPU profiles and also using CPU sleeper app.:thumbup:
Sent from my SGH-T999 using xda premium

i hope this can help you
http://rk00064.blogspot.ro/2012/04/all-android-tweaks-in-single-flashabble.html

Battery Drain......?! Try Battery Not Holding Any Charge!
I've kind of got a similar problem. Can't quite figure out what is causing it though. Everything was fine until I updated to tha latest nightly last night. It slowly took a nose dive after that. It actually died all the way out on me while sitting plugged in. Now, as I stated in the title, it won't hold any sort of a charge whatsoever. Every once in a while I can get it to boot up but almost instantly it shuts right back own. Can't seem to boot into recovery either, but have gotten it into Download Mode pretty easily. That's where it'll remain on for the longest duration, but still not long enough to be able to reflash anything to it. The battery state check said the battery health was good all the way until it completely died on me the first time. There has been no moisture or other damage done to it in an kind of way either. Any ideas as to what exactly the issue at hand may be?

Sounds like it might be your battery...know anyone with an s3 that you can use there battery for a bit to see if it charges...if so then its your battery if not might be the ROM or phone.
Sent from my SGH-T999 using xda premium

I'm running the most recent PACman ROM, which is 4.2.2 and what I do is set my governor to interactive and my I/O Scheduler to SIO. Running stock kernel at the lowest min and highest max, I can get almost a day and a half out of a charge. My trick is to toggle things when I'm not using them. I mean all the time. Screen brightness never above halfway, no haptic feedback, no live wallpapers, and I'm always clearing my recent apps. I don't know if this'll help you any but that's my battery saving procedure.
Sent from my SGH-T999 using xda premium

I really don't know anyone with an s3. Seems Apple has everyone around here convinced they're better. HA HA! That's a great laugh! Seriously though, there is a used cell phone shop I'll go talk to though. As for my kernel settings go I run interactive, on demand, 648 & 2100, under volt everything 100, and either raise or lower all other settings within one point from the least or maximum it could be. Been running that since I got the phone in September without any problems battery wise whatsoever. I'll start with checking the battery though and see where that journey leads....... Thanks for the thoughts and suggestions.

What's normal battery Temp?

Hey Everyone was wondering what's the normal temperature for the battery? Here's a screenshot I took, I use the app called Devcheck great app by the way, great for getting all the Info you need about your phone.
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that temp is good, nothing to worry, everything up to 37/38 without gaming is quite normal. it depends whether you use mobile network and a lot of browsing or so or not.everything starting from 38 and above should be only reached with gaming

No need to worry about temperatures on the phone. It's not like a desktop with variable cooling systems. If battery or CPU is getting hot, it'll throttle to lower temps and will turn off in extreme conditions. Having Android phones since the D1, I've never seen anyone fry their phone from excessive temperature.
IMO, monitoring temperature on phones is as useless as ram cleaners. Let the software do it's job.
Sent from my HTC6545LVW using Tapatalk

What's the normal Temperature of the Battery?
Room temperature obviously!
Everything else i abnormal. Like when you activate the screen and use your phone. This uses energy and causes the battery to become warmer.
Using a LOT of energy like Recording 4k or playing a Game which uses up to 8W will increase battery temperature.
1. the 8W Electrical energy get turned into 99.9% thermal energy, the SoC is between battery and Display, facing the battery IIRC.
2. The Battery being used causes itself to heat up.
So what is the Limit? Around 45°C The phone starts throttling CPU clocks and GPU clocks way earlier. Around 38°C is the first one and around 41-42° he next one. But depending on your surround temperature (Jep, Texas Sun at noon and 35°C Outside temperature do not help....) your phonebattery will not get hotter than 48°C
Is this safe? Jup easily, the battery iself should be specced about 50-60°C Maximum usage temperature. Didn't really take a look at the details in the battery in the disassembly video^^
But as Richii already mentioned, your phone does this all on its own. Don't have to care at all
It's note a Note 7 ^^