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3G battery life with 3.1.3


Jul 26, 2009
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Since updating my iPhone to 3.1.3 a couple of days ago, & jailbreaking via Spirit, I've noticed my battery life has dramatically decreased.

My iPhone was previously jailbroken with redsn0w & would easily last the day at work (& would be on 10-20% by the time I got home at 7pm) with regular Facebook, twitter access etc. Since Updating & using Spirit, I'm still using about the same amount of data, but my battery is pretty much done by 1-2pm.
I have the same apps as before (well, less infact) & do not have any background apps running at all, so am unsure as to why the battery is dying so quickly compared to before.

Is anyone else experiencing this at all, & are there any cunning battery saving tips that anyone knows of (& please don't say 'use the phone less') :-D