Losing 4% every hour even with screen turned off - TouchPad Q&A, Help & Troubleshooting

It's very saddening but this is the case for me.
I have battery saver app installed but it doesn't help very much.
Is there any good power saving tips or perhaps a ROM really good for battery life?
can I replace my TP's battery?

What ROM are you using?

fat n-creamy CM10

1) check your wifi sleep settings and ensure it is set to off when not in use
2) set your minimum frequency to 192 instead of 384. However some people have seen SODs when set at this frequency
3) Use better battery stats to see if there any wakelocks.
I am getting around 0.5% using JCSullins 20121216 CM10 build.

Related

Battery Leak - Help Appreciated

Hi all.
I'm experiencing some sort of battery leak, but nothing is jumping out at me. Went to bed ~ 95% and woke up to ~ 20%.
Battery Use Stats:
Cell Standby - 44% (TWS - 0%)
Phone Idle - 45%
Voice Calls - 6%
Display - 3%
Dialer - 2%
Here is the software info:
Firmware - 2.1 Fresh Toast
Baseband - 2.42.00.03.10
PRI - 1.70_003
PRL - 60664
Running OC Widget on detect settings & autokiller on aggressive.
Using SpareParts - Partial Wake Usage - Calendar has the largest bar above Android System (yet I really don't use the calendar for appointments).
Any thoughts/tips/tricks would be much appreciated.
Thanks!
Jerry
I'm assuming you have reboot the phone?
In addition, on your OC widget what your setting for screen on and screen off?
I'm still playing with setting that best for me and the phone. However, this is my current setting for OC widget: for screen on 729600 for min and Max and screen off 245760 for min and max. I saw if I did't select differ freq for screen off, the CPU was run at same speed at screen on. Compare the 2.1.1 I'm getting average 8-10 hr of battery. I'm guessing OC might drain battery faster. Maybe I'm wrong.
Yes, I have rebooted since loading. I used the auto-detect settings for the OC Widget, but I guess that could be an issue. 8-10 hours of battery seems low to me? I was getting near 24hrs average (some higher, some lower) on Fresh 2.0d.
Here are the settings:
OC Widget Settings:
Screen On - 245760,384000
Screen Off - 245760,384000
I guess that could be an issue.
What's your awake perentage at?
jkryspinjr said:
Screen On - 245760,384000
Screen Off - 245760,384000
Click to expand...
Click to collapse
Strange I have mine set higher than your for screen on.
Still battery hr for me. I know 2.1.1 I was getting at least a day an half with moderate use.
Like abcdfv said what your awake and uptime?
Up time: 20:35
Awake time: 5:57
Awake time looks good.
Try this setting on your OC widget:
480000 min and 576000 max. It may or may not help.
Thanks for all of your help.
Would this be for both screen on & off?
Screen on.
For screen off I have mine set at 245760 for min and max. So far battery life is OK. Since unplug at 7:45 AM (100%) and now it at 66%. Few calls, web surfing and facebook. Roughly 1 hr 20 mins usage of phone and 4hr 30 mins standby. I know compare to 2.1.1 it not great battery life.
Thanks - I'll try that.
So far, I might head back to Fresh 2.1.1 if this battery life stays like it is running Fresh Toast.
You could also try running RegawMod, I have had noting but good to say about the ROM so far and battery life is wonderful! I use Strict I think on ak though., stay around 60MB free ram if that helps at all.
Thanks for the help. I decided to factory wipe, wipe SD and cache. I then flashed Fresh 2.1.1 and my battery life is back to normal. Might play with Fresh Toast some more later.
Thanks for all of your help.

How low can ur battery usage probably go?

Hopefully xperia users to conserve energy while the battery driver is fixed.
PLS state:
1) screen on idle battery usage xxxmA (no airplane mode with screen on)
2)standby screen off xxxmA
3)as much as u can on what u did, which build
4) any other optional tips.
PS. Use the currentwidget from the forum to check. Do not download from the market as it is older and xdandroid will show 0mA (incompatible)
1) mine is 220mA
2)standby 190~210
3) started running with LCD density- 190 on first boot , default in tremeres 27/9 build is 200.
Advanced task killer - under security set to low, restart the app and kill EVERYTHING. Absolute minimum backlight.(That's all I think)
4)Running music during standby helps abit...
Anyone out there has a better battery usage?
Sent from my MSM using XDA App

[Q] battery life not improving with undervolt on Setiron reoriented kernel

I have been using setiron's reoriented kernel for awhile now with the Voltage control app set at -75mV for 100, 200, & 400mhz and -50mV for all other frequencies. I am not having any stability issues and the voltages are sticking after reboot. However, I was expecting a pretty significant increase in battery life due to the undervolting and I have seen next to nothing. Battery life is not bad by any means but in real world use is pretty comparable to what I was getting at stock voltage.
people seem to be reporting really big increases in battery life, so I'm a little confused. have I not UV'd by enough? if that were the case I would expect to see at least some battery improvement.
I wiped battery stats/recalibrated the battery when I flashed. I do have BLN enabled, but my understanding is that this causes a really small amount of battery drain. any thoughts?
How much % of battery you loose after night|?
while idle with the screen off (background data enabled) I lose about 1-2% per hour. I lost 10% overnight most recently and I was asleep for 7 hours. that is about the same that I was getting at stock voltage.
all i can sya, is thst you losing not many %
tehsam said:
while idle with the screen off (background data enabled) I lose about 1-2% per hour. I lost 10% overnight most recently and I was asleep for 7 hours. that is about the same that I was getting at stock voltage.
Click to expand...
Click to collapse
If you are in a weaker signal area, then the cell phone radio is going to work just as hard no matter what the CPU voltage.
tehsam said:
I have been using setiron's reoriented kernel for awhile now with the Voltage control app set at -75mV for 100, 200, & 400mhz and -50mV for all other frequencies. I am not having any stability issues and the voltages are sticking after reboot. However, I was expecting a pretty significant increase in battery life due to the undervolting and I have seen next to nothing. Battery life is not bad by any means but in real world use is pretty comparable to what I was getting at stock voltage.
people seem to be reporting really big increases in battery life, so I'm a little confused. have I not UV'd by enough? if that were the case I would expect to see at least some battery improvement.
I wiped battery stats/recalibrated the battery when I flashed. I do have BLN enabled, but my understanding is that this causes a really small amount of battery drain. any thoughts?
Click to expand...
Click to collapse
Battery drain can be a symptom of i9000 kernel and captivate modem.
Changing the modem and keeping 850mhz is a multi step process. I tried the kernel you are talking about but it's over rated.
if you want battery life flash a 2.1 rom and use unhelpful's kernel, 1.4.1 was the most stable on my phone but it doesn't have voodoo. 1.6 has voodoo and 1.7 has voodoo and clockwork recovery if I remember right. But I had random restarts, others did not report the same problems so who knows.
I would wait for captivate froyo source to drop. I'm getting decent life with cognition and no undervolting.
Edit after reading the whole thread your battery life seems normal, I don't see any problem, you can try more undervolt but test the phone completely. Make sure it doesn't freeze randomly, or on shutdown. Also test it with the charger plugged in, extra heat from the battery charging can affect stability.
Sent from my SAMSUNG-SGH-I897

Strange battery isue with CM7.2

I'm using temasek's UNOFFICIAL BUILD 130 + temasek default kernel. Every time then my battery percentage reaches 20-30 % phone shuts down. with battery monitor tool i see huge battery percentage drop. then i turn on phone, battery percentage gets back to where it should be (screenshot attached).
is there anyone having same issue and knows how to fix it?
Boot into the recovery menu and wipe the battery stats. Or download the battery calibration app, let your phone charge to 100% and then calibrate it.
Sent from my Optimus 2X using xda premium
thanks for hint. will try.
tomudios said:
thanks for hint. will try.
Click to expand...
Click to collapse
Wiping battery stats has no effect on the battery life. Diane Hackborn, an Android Developer, has elaborated on this matter on Google+.
I guess you have "Pimp My CPU" running and it is set up to save battery when reached 30% or 20%. It would do so by clocking down CPU, undervolting or both. Your Device seems not to like low Voltage, slow clockspeeds or both and shuts down.
If you have not set up Pimp My CPU yourself, your kernel is maybe set up to do just that.
Set Pimp My CPU up manually to not go to the lowest possible clockspeeds and to not UV.

[Q] Nexus 6 problems: display, battery

I've received Nexus 6 from FlipKart, Its great but two major concerns:
1. Screen is very yellow (warm color) and on reducing brightness it becomes magenta. When compared to any other phone including Nexus 5, its extremely yellow. Tried couple of apps, none of them do a good job of fixing the yellows. Did anyone find a good app/setting to calibrate this screen right?
2. Battery life is pathetic: From 100% to 10% in half day. SOT is barely 3 - 3.5 hours (Greenified Facebook, Encryption off), no gaming, where as my friend gets 5hours. Sometimes phone hangs and switches off. When I switch on, it looses 15% battery. It has only been charged 2-3 times (only got it 2 days ago). Does it get better with time? or Am I having a faulty battery?
Update: forgot to mention my phone shuts down at 28% battery. And it didn't boot at all. I realized battery was zero. Is this calibration issue? Or bad battery
Flash elementalx, you'll be able to change color values and battery life is great
1. You can change your RGB using any kernel with support to it. Almost every single kernel have support to RGB LCD KCAL. Use a app such as Trickster to modify the RGB once you flashed a kernel of your choosing.
2. Battery life is subjective to how you use your device. Just because someone was able to achieve 5 hours+ SOT doesn't mean you will either because there are way too many factors that play into effect such as: cellular signal strength, wakelocks, apps installed, etc. If you want to maximize your battery life, look into underclocking the CPU/GPU frequency and flash a custom kernel (e.g. Franco) that removes mpdecision. Mpdecision is a huge battery drain and the frequencies that it selects is completely random and unnecessary in my opinion.
http://forum.xda-developers.com/showpost.php?p=57808725&postcount=7 my battery life with Franco pre-r1.
I agree that mpdecision really does drain battery a lot. I have mine OVERCLOCKED to 2.88 ghz with sensei kernel and intelliplug. And I am still getting way better battery life than stock. Just flash this kernel with intelliplug and there goes your battery issues. And you can also adjust your screen colors.
rmx36 said:
I agree that mpdecision really does drain battery a lot. I have mine OVERCLOCKED to 2.88 ghz with sensei kernel and intelliplug. And I am still getting way better battery life than stock. Just flash this kernel with intelliplug and there goes your battery issues. And you can also adjust your screen colors.
Click to expand...
Click to collapse
For more elaboration on mpdecision,
All Qualcomm based phones have Qualcomm prorprietary userspace binary called "mpdecision" aka m(ake)p(oor)decision. Instead of letting the kernel itself to decide what frequencies and how many cores to run, this "mpdecsion" binary polls the kernel run queue statistics and decides for the whole system the "optimal" frequency and the "optimal" number of cores to use. The concept is fine, except the decision making is done in userspace and it's 100% closed source so there's no way to tweak it and there's a latency (because all userspace binaries needs to "poll" the kernel for the latest information which is slightly delayed). - faux123
Click to expand...
Click to collapse
In other words, mpdecision makes your phone sit at 1.5GHz for doing the most simplest tasks, even composing a email it'll bring your frequency to be at 1.5GHz.
Download CPU Spy and use your phone, then look at CPU Spy and you'll see how much time is spent in that frequency. Then flash another kernel that does not use mpdecision then you'll see the difference, the phone sits at frequencies that makes sense for the load that is on the device.
The alternative solutions would be, Franco's Hotplugging Algorithm or intelliplug by Faux.
Battery life is very subjective.
I am still 100% stock, encrypted, auto brightness and get over 6 hours SOT every charge. Mainly WiFi, some LTE. No gaming.
I will root and switch to another kernel when I have time and see the difference. I would expect more battery.
However if you are only at 2.5 hours SOT on a full charge, I wouldn't expect it to double just by changing kernels.
JasonJoel said:
Battery life is very subjective.
I am still 100% stock, encrypted, auto brightness and get over 6 hours SOT every charge. Mainly WiFi, some LTE. No gaming.
I will root and switch to another kernel when I have time and see the difference. I would expect more battery.
However if you are only at 2.5 hours SOT on a full charge, I wouldn't expect it to double just by changing kernels.
Click to expand...
Click to collapse
Thats so impossible. I've switched to 2G only but i run on Wifi all time and yet 1 day standby and 3.5hrs SOT.
zephiK said:
1. You can change your RGB using any kernel with support to it. Almost every single kernel have support to RGB LCD KCAL. Use a app such as Trickster to modify the RGB once you flashed a kernel of your choosing.
2. Battery life is subjective to how you use your device. Just because someone was able to achieve 5 hours+ SOT doesn't mean you will either because there are way too many factors that play into effect such as: cellular signal strength, wakelocks, apps installed, etc. If you want to maximize your battery life, look into underclocking the CPU/GPU frequency and flash a custom kernel (e.g. Franco) that removes mpdecision. Mpdecision is a huge battery drain and the frequencies that it selects is completely random and unnecessary in my opinion.
http://forum.xda-developers.com/showpost.php?p=57808725&postcount=7 my battery life with Franco pre-r1.
Click to expand...
Click to collapse
Impressive! I'm trying ElementalX kernel right now. Is it safe to switch-off MP-decision on that using trickster or shall I go with franco blind folded.
taranfx said:
Thats so impossible. I've switched to 2G only but i run on Wifi all time and yet 1 day standby and 3.5hrs SOT.
Click to expand...
Click to collapse
Well, not impossible as it has been that way on my phone since day 1.
But i agree that it is really odd how some people are getting 3 hours and others getting 6.
I had the opposite on my Note 4 though. Everyone got 6 and I got 4. So who knows?
taranfx said:
Impressive! I'm trying ElementalX kernel right now. Is it safe to switch-off MP-decision on that using trickster or shall I go with franco blind folded.
Click to expand...
Click to collapse
You only want to disable MPDecision if theres a alternative. For Franco, mpdecision is 100% removed so you don't need to disable anything.
I don't know ElementalX so I can't say, ask in their thread. If you use Franco, everything is done for you and you don't need to do anything on your part.
My battery life with LK is pretty good as well! I was able to tether for 10 hours straight and still had 22% left after sleeping ~8 hours.

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