Game Boy Advance Uses AA Batteries — No Built-In Charger

GBA runs on 2× AA batteries. No internal rechargeable battery, no charging circuit.

Power Options

• Alkaline AAs: ~15–20 hrs (original GBA), ~10–15 hrs (SP frontlit)
• NiMH rechargeable AAs (Eneloop, etc.): ~10–15 hrs/charge, 500+ cycles — best value
• Lithium AAs: ~30+ hrs, non-rechargeable, expensive
• AC Adapter (AGS-002 for SP / AGB-002 for original): Wall power — does not charge batteries

Model Notes

• GBA (AGB-001): Horizontal, 2×AA, no light
• GBA SP (AGS-001): Clamshell, frontlit, 2×AA, charge port for AC adapter only
• GBA SP (AGS-101): Backlit, same power
• Game Boy Micro: Built-in Li-ion (non-user-replaceable), charges via proprietary USB

For SP: Eneloop AAs + external smart charger = modern best practice. Original GBA: same.