On my European unlocked i9100 running gingerbread, my battery fully recharged in less than 2 hours *while I was using it.* Since the ICS upgrade (using Kies), it takes about 4 hours to charge it if I'm using it string the charge period.
Has anyone else noticed this?
Also, my phone now runs much hotter than it did on gingerbread. Will this damage something in the phone?
I'm not sure my battery drains any faster than before, but then, I've turned of several of the optional effects that drain batteries. e.g. haptic feedback, animated transition from one homescreen to the next, that sort of thing.