Gameboy Advance GBA battery cover with usb type-c hole and support for charger module TP4056

thingiverse

This thing is a cover that allows you to create a custom rechargeable battery for the Gameboy Advance. PRINT SETTINGS: I printed this cover in vertical with supports, infill doesn't matter. BATTERY ASSEMBLY: The battery I used is a 1150 mAh li-ion battery that fits perfectly in the space for the original batteries (link: https://amzn.eu/d/0v9TzpL), and the charger module is an USB type-c TP4056 board (link: https://amzn.eu/d/3VRCdhc). I cut out the connector (please note that you CAN NOT cut both wires together, but you have to do one wire at a time) and I soldered the + and - wires to the TP4056 board (B+ and B-), then I soldered two wires on the GBA motherboard's power poles and soldered them to the TP4056 (OUT+ and OUT-). I also soldered a diode (1N4007) between the motherboard's positive pole and the positive output of the TP4056 (OUT+) because the voltage is too high (GBA accept a max voltage of 3.2V instead of the 3.7V of the battery). I recommend to NOT use the GBA when it is in charge.