NP-20 NP20 Battery For CASIO Exilim EX-Z77 7.2 MP DIGITAL Camera + Charger | eBay
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