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
Original Casio NP-20 Battery for EX-Z3 EX-Z7 EX-M1 EX-M20 EX-S4 EX- S20 EX-S500 | eBay