I bought my extended life battery for $39 off Amazon. It comes with a couple of covers so that it will fit in the slims. You just can't buy good batteries cheaply unfortunately.bacteria wrote: As to the battery - same issue as you had, the one I got designed for the PSP 2000 or 3000 slim didn't want to close in the case, removed the top of the battery and it did, even bent the battery terminals to ensure they maintained good contact with the PSP and the PSP still didn't want to know before. Guess the PSP battery has a validation chip in it to only run official batteries, even if the battery in question is suitable otherwise.
BTW - if you look on Amazon as the link above suggests - you only also seem to see pics of the rip-off Chinese PSP memory cards....
Where to buy proper ones, cheaply? Ideas?
I was lucky that I scored another new slim battery from someone on Craigslist for $5 one time.



