Casio Genuine Original NP-20 Li-ion Battery for Exilm EX-S100 EX-S2 EX-S3 EX-Z3 EX-M2 EX-Z4 EX-S20 EX-S600 EX-Z4U S770 Z700 Series
Amazon.com : Kastar NP-20 / NP20 Battery Charger Compatible with Cas Exilim EX Series Cas Exilim NP-20 NP20 Battery for Exilim EX-M1, EX-M2, EX-M20, EX-S1, EX-S2, EX-S3, EX-S20, EX-S10 : Digital Camera