iphone 4 help
my iphone 4 jailbreaked with redsnow worked no problem for months
It had 80% battery life then suddenly my iphone shut off by itself.
I tried to turn it on again and it pops up this battery with "Charger + Lightning Bolt" under it.
I left it in the charger to see if it would charge and after about 5-10 minutes, my iphone booted up again with 5% battery life
What happened O.O??? this never happened to me before
Possibly this is a hardware issue.
Try to "recondition the battery" - Apple has instructions for this they are linked at Apple - Batteries
If that doesn't work, take it in under warranty asap.