This is a generic, equivalent one, 100% compatible. This Replacement Li-Ion rechargeable battery is designed to compatible with Nintendo Game Boy Advanced SP GBA BT-M12 AGS-001 AGS-101 AGS-003.

Specifications:
* Product Type: generic/equivalent
* Chemical Composition: Li-Ion
* Voltage: 3.7V
* Capacity: 850mAh
* Condition: new, 1 Year Warranty!
* Use Integrated microchip which can prevent overcharge and over-discharge.
* No memory effect, batteries can be charged or discharged at any time without harm.

Replace Part Numbers:
BT-M12, BAT-GBASP-1LI

Compatible Models:
AGS-001,
AGS-003,
AGS-101,
AGS-A-BP-USA,
C/AGS-A-BP-USA,
SAM-SPRBP(A),
GBA-SP,
Game Boy Advanced SP

Package Included:
1 x Replacement Battery for Nintendo Game Boy Advanced SP GBA BT-M12 AGS-001 AGS-101 AGS-003 3.7V 850mAh