The only build-it-yourself USB-rechargeable battery kit available for the original Gameboy Advance (AGB-001)!
- 850mAh battery provides 6-7 hours of play time per charge
- Play and charge at the same time
- Native GBA low-battery warning light compatibility (20-40 min warning time)
- Detailed assembly instructions
- Optional light pipe add-on, for charging status LEDs (+ $2.49)