I've just found my old PSP-3003 at the bottom of a box, and am happy to find out that since it made its way there, it's now hackable! I was less happy to find out that the battery has swollen since it was put away, now I'm looking for a replacement. Unfortunately a lot of the third party replacements out there seem to have unbelievable capacities that lead me to believe they could be at best incorrect, and at worst, dangerous. Are there any third party replacements out there folks would recommend? EDIT: Preferably available in the UK!