Casio Exilim EX-Z35 Battery - Replacement for Casio NP-80, NP-82 Digital Camera Battery (800mAh, 3.7V, Lithium-Ion) - Walmart.com
Amazon.com : Synergy Digital Camera Battery, Compatible with Casio Exilim EX-Z700 Digital Camera, (Li-Ion, 3.7V, 1300 mAh) Ultra High Capacity, Replacement for Casio NP-40 Battery : Electronics
Casio Exilims with 2.5 times battery life: Digital Photography Review
Casio Exilim EX-Z85 Digital Camera Battery Charger Mini Battery Charger Kit For Casio NP-60C Battery - Replacement For Casio EX-Z80 Charger - (110/220v with Car & EU adapters) - Newegg.com