I bought the samsung galaxy s2 last week and have had problems with the battery since the day I bought it. The battery icon on the screen does not tell me how much battery is left - it is always full, and so I have no way of knowing when the phone is about to die. When the battery does die, the phone shuts off completely, i cannot make anything show on the screen, so I plug in the charger and a battery icon with a yellow triangle and exclamation mark appears. After I have left it like this for a couple of hours, the only way I can turn the phone back on is to take out the battery and put it in again, and it seems to be fully charged, though still only lasts 9hrs and I have to do it all again.
Is there something I should be doing?? Any help would be greatly appreciated as the nearest telstra shop to me is 400km away so I won't be able to get back there within the 30 days before the warranty runs out, and I will be stuck with this phone for the next 24 months!
There is another thread on here running about the same issue. If you use the search function you may find it. I can't remember the outcome but it is probably firmware version related...