If your Game Boy Advance SP needs a new charger or you want USB charging lead to use on this go then we should have just what your looking for with loads of Gameboy & Advance accessories.
Screen Protector Film For Gameboy, Color, Advance & Advance SP Consoles
2 Player Game Link Cable For Nintendo Gameboy Color
Nintendo GameBoy Colour Replacement Battery Cover (GBC)
Battery Contact Spring Terminal Replacement Part for Nintendo Gameboy Colour GBC
Gameboy Colour Replacement Screen Plastic Lens (GBC)