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I just have Backgrounder, Quicksms, Sbsetting and Makeitmine installed and battery life as normal to when it wasn't Jailbroken.

Edit: battery drain increased for some reason.
 
my iPhone 4 took 10 hours last night from 2am til 12am, after i removed it from the charger (while i slept) to drop from 100% to 99% and this is post jailbreak.

My battery life was pretty much the same the night before: pre-jailbreak.
 
Or you could just chuck it.

MyWi is a battery drainer, even when you're not using it. Of course, it's worse when you are.

How does it drain battery life when its not running at all and its not in the background?
 
Mines better if anything, 24 mins use and 3 hours 33 mins standby and I'm on 99%. Although I only just ran my battery down completely for the first time yesterday (JB'd as I was charging) so I dunno if that made a difference. Much better than my first i4 though, that dropped like 20% overnight, same as this one did before I ran it down.
 
mine seems to be running down faster...

installed
winterboard (minimal use)
bitesms
intelliscreen
makeitmine

nothing heavy..?
hmmm...
 
There are a few threads like this - some say it drains quicker, some say it doesn't. Nobody has been able to work out what it is, but mine certainly drains faster.
 
I had issues with the percentage running down faster than normal. I could figure out what it was. I recalibrate the battery about two weeks before the jailbreak was released so I didn't think that's what it could be.

I was wrong. Maybe something to do with the jailbreak messed with the battery meter's accuracy or it could have been a coincidence, I'm still not sure. What I do know is I let the battery run all the way down and charge the phone overnight with airplane mode on. I unplugged the iPhone at 10:30am yesterday and today at 11:05am I'm at 89%.

My phone seems back to normal. This is what I have installed:

SBSettings/Activator
OpenSSH
PrivaCy
Quickreply for SMS
GV Mobile+
MobileTerminal 426
AT&T Carrier Logo for iPhone 4

I deleted SpringFlash during my battery testing since some noticed an issue. I think I'll be trying that one again now that things are much better with my phone.
 
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