NP-20 3.7V 1050mAh Li-ion rechargeable battery Compatible with Casio: Exilim EX-M1, Exilim EX-M2, Exilim EX-M20U, Exilim EX-Z77, Exilim Card EX-S1, Exilim Card EX-S100, Exilim Card EX-S2, Exilim Card EX-S20U, Exilim Card EX-S2PW, Exilim Card EX-S3, Exilim Card EX-S500, Exilim Card EX-S500EO, Exilim Card EX-S500GY, Exilim Card EX-S500WE, Exilim Card EX-S600, Exilim Card EX-S600D, Exilim Card EX-S770, Exilim Card EX-S880, Exilim Zoom EX-Z3, Exilim Zoom EX-Z4U, Exilim Zoom EX-Z60, Exilim Zoom EX-Z60SR, Exilim Zoom EX-Z70, Exilim Zoom EX-Z75