Amazon.com : Synergy Digital SDNP20 Lithium-Ion Battery - Rechargeable Ultra High Capacity (3.7V 630 mAh) - Replacement for Casio NP-20 Battery for Casio Exilim EX-M1, EX-M2, EX-S1, EX-S1 PM, EX-S100 : Electronics
Battery And Charger For Casio Np-20 Np20 And Exilim Ex-z60,ex-z70, Ex-z75,ex -z77,ex-s500,ex-s600,ex-s770,ex-s880 Digital Camera - Digital Batteries - AliExpress
Casio NP-20 Lithium-ion Battery (3.7v 630mAh) for Exilim Series Digital Cameras