Does anyone here have any experience with aftermarket batteries for the GBA SP? There are a lot of generic 3rd party options (that appear to fall into really only a couple or three actual manufacturing variants) and reviews on Amazon are mixed. There's one brand name option from Batteries Plus (Rayovac) and one DIY variant but you have to buy the cells and circuit board separately, and you ultimately don't save much cash unless you are manufacturing them to sell/give to others. I would ideally like a budget option that doesn't suck, but this is a difficult space to navigate
Does anyone have any experience in this area they could share?
(Ziggy, any interest in getting into the battery assembly business?)