Genuine Casio NP-20 Lithium Rechargeable Battery - Same Day Shipping | eBay
ProMaster NP-20 Lithium Battery (Casio NP-20)
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