Amazon.com : UltraPro NP-40 Rechargeable 1300mAh High-Capacity Replacement Battery with Rapid Travel Charger for Select Casio Digital Cameras Including EX-Z850 EX-Z1000 EX-Z1050 EX-Z1080 EX-Z1200 : Digital Camera Batteries : Electronics
Amazon.com : Synergy Digital Camera Battery, Works with Casio Exilim EX-Z40 Digital Camera, (Li-Ion, 3.7V, 1300 mAh) Ultra Hi-Capacity Battery : Electronics