I have a PSPGo and the battery on it seems to be going as it doesn't last much more than an hour before needing to be recharged.

I have looked everywhere and cannot find a place to buy PSPGo internal batteries. I know I have to open the unit to replace it but it's only a couple screws and I've already taken it apart to have a look.

Why does no one seem to carry this part? There are tons of batteries for all teh other models, and lots of there "external" batteries, but I really just want a direct swap replacement without having to send my Go back to Sony.

Is there anywhere to get one?