Rechargeable battery mod for the Game Boy Advance console.
Slight modification required to the battery compartment, please see photos.

Like other similar mods you will need to cut a slot for the USB-C charger port in the battery cover to charge without removing the cover.

Battery cover can be used without cutting a hole as long as you don't mind removing the cover to charge.

USB-A to USB-C compatible only. Not compatible with USB-C to USB-C cables.

Does not support play and charge.

Red Blue light= Charging
Red = Fully charged

PCB color may vary.

BATTERIES ARE DANGEROUS! DO NOT PUNCTURE OR CUT!  ​​​