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Possible Fix to excessive battery drain on JB 3G iPhones (worked for me)

dhlizard

dhlizard

macrumors G4
Original poster
Mar 16, 2009
10,214
119
The Jailbreak Community
After upgrading to 3.0.1, for the 1st time ever in my JB history, I experienced excessive battery drain. I had battery percentage enabled in SBSettings.

Here is a fix for 3G phones which has made an incredible difference for me

1) Turn off %battery in SBSettings
2) Open Cydia and add this source ----> http://apt.iphone-storage.de
3) After repo is added, install asBattery
4) Reboot phone ..... a respring will not work !
5) Open settings/general/usage (located below "about" selection)
6) Toggle on Battery Percentage
7) Re-spring

Enjoy longer battery life !

I hope this helps some of you out.

asBattery
 
This work for anyone else?

What exactly does the asBattery app do to prolong battery life?

I am suspicious, but optimistic.
 
FastangV6 said:
This work for anyone else?

What exactly does the asBattery app do to prolong battery life?

I am suspicious, but optimistic.
Click to expand...

Its more like the battery percentage from sbsettings causes massive battery drain..not sure why
 
hmm, charged last night, used a bit today at work and my battery shows 75%

not a huge increase, hmm maybe a tiny bit difference.
 
uninstall asBattery too.. u'll get a lot longer battery life.
for some reason, showing the battery % drains battery like there's no tomorrow.

and i wonder if that was the reason it wasn't included in the official 3.0 version for the 3G.
 
jmmo20 said:
uninstall asBattery too.. u'll get a lot longer battery life.
for some reason, showing the battery % drains battery like there's no tomorrow.

and i wonder if that was the reason it wasn't included in the official 3.0 version for the 3G.
Click to expand...

or could the % be rounding down or something?

maybe its just the % thats off, and turning it off give us just the battery and that itself its hard to judge since it only moves down in sections.

i dunno, just a thought.
 
HighLife420 said:
or could the % be rounding down or something?

maybe its just the % thats off, and turning it off give us just the battery and that itself its hard to judge since it only moves down in sections.

i dunno, just a thought.
Click to expand...

+1
 
When I installed asBattery on my iPhone 3G, the percentage was 3 percent off compared to the app Free Memory's percentage. I installed "Show Battery Percentage" from the repo http://iphone.org.hk/apt and it was as accurate as the Free Memory percentage.

Edit: For some odd reason, the battery percentage on my 3GS is 3 percent off from the Free Memory app as well!? I tried installing "Show Battery Percentage" on it even though it has the toggle built in, and it fixed it. Bizarre.
 
Results for my 2nd day using this:

Unplugged phone at 8:30 AM from charger

At 10 PM tonight, battery still at 56% after full days use.

That is much better than the results I was getting with SBS settings.
 
jmann said:
Why does it make such a difference in battery life? I have personally never used SBsettings, and have only used asBattery. So I can't compare, I just think it's weird that it makes a difference.
Click to expand...

Most everyone seems to report that SBSettings % battery toggle drains the battery.

I never had any battery problems until I JB under 3.0.1.

I have since gone back to 3.0 and JB, but still experiencing some excessive battery drain.
 
dhlizard said:
Most everyone seems to report that SBSettings % battery toggle drains the battery.

I never had any battery problems until I JB under 3.0.1.

I have since gone back to 3.0 and JB, but still experiencing some excessive battery drain.
Click to expand...

what about asBattery not being accurate?
when i check the battery level with meroryinfo, asBattery is like 3% off the real number :confused:
 
seems like this is all mostly in your heads than anything. i use sbsettings and show the battery percentage. i am not getting any weird extra battery draining issues on my iphone 3g at all.
 
I only know that when I installed asBattery, the following day by 1pm I was down to 50%. The following day without asBattery, having used roughly the same stuff on my iphone, by 1pm I was at +80%
 
jmmo20 said:
I only know that when I installed asBattery, the following day by 1pm I was down to 50%. The following day without asBattery, having used roughly the same stuff on my iphone, by 1pm I was at +80%
Click to expand...

Yes, toggling on %battery does drain your battery faster than not using %battery.

But for me, I get less drain with asBattery than I did with SBSettings.

Others may not have the same experience.

Good luck.
 
im noticing a small difference....however, i will tell you guys something that gave me a big difference in battery life.

I know that there is people who dont believe in this but, it really worked for me...YMMV.

A friend suggested that i drain the battery COMPLETELY. I thought to myself, well this cant be good for a li-poly battery...i could of sworn people have always said that you not supposed to drain it fully.

However, friend bet me that if it broke my phone in anyway, he would glady purchase a replacement for me. He assured me that he has done this when he had the iphone and it helped alot.

Anyway, turned the brightness up, turned everything on that i could...played a few games and really beat it up to drain to to 1%....i got the warnings at 20% and 10% from the phone itself...however, the last 3% of the battery took almost as long to drain as 20% down to 4%.

Finally it died on me and not turning on with the button....i plugged it in (little empty red battery pops up for about 2mins and then it turns on again), turned it off again, and let it charge ALL night with the phone off.

This morning took the phone off the charger at 8am, browsed a few sites (check NCAA football poll, GO GATORS #1). Listen to the ipod for about 45mins give or take, sent a dozen or so SMS...its now about 3pm and my battery is showing 87%.

Hope this helps.
 
HAVE YOU GUYS TRYED THIS?



reddawg said:
Giabar's mod allows you to enable or disable the numeric battery using the Settings-> General-> Usuage ->Battery Percentage [ON / OFF] menus on your iPhone 3G. Below are instructions that on how to do this:
______________________________________________

How to Enable the Numeric Battery in firmware 3.0
  1. Connect to your iphone 3G using WinSCP (SSH)
  2. Before doing anything, backup the file called M68AP.plist located in /System/Library/CoreServices/SpringBoard.app.
  3. Using WinSCP (ssh), copy M68AP.plist to your computer.
  4. Download the PLIST editor in pledit.zip that is attached to my previous post and extract it to the same folder on your computer as your file called M68AP.plist
  5. Run Pledit.exe and open M68AP.plist
  6. Add the following key to under <key>capabilities</key>
    Code: 
    <key>gas-gauge-battery</key>
<true/>
  7. Save the file M68AP.plist in PLedit.exe and exit.
  8. Using WinSCP or SSH, copy M68AP.plist from your computer to /System/Library/CoreServices/SpringBoard.app/ on your iPhone 3G and overwrite the original file.
  9. Execute the following command from WinSCP or from a SSH terminal window:
    Code: 
    killall SpringBoard
Click to expand...
 
so, would this be better to run than the program?

Im guessing since its run like this it wont use any battery life?
 
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