Casio Exilim EX-H15 Digital Camera Battery Replacement battery for the Casio NP90, Lithium-Ion (Li-ion) 3.7V (1950mAh) - This Synergy Digital battery is fully compatible with the original Casio NP90 Battery.: Amazon.co.uk: Electronics
High Capacity – Rechargeable Battery for Casio Exilim EX-Z50, EX-Z500, EX-Z55, EX-Z57, EX-Z600, EX-Z650, EX-Z700, EX-Z750, EX-Z850 Camera - Replacement for Casio NP-40 Battery: Amazon.co.uk: Electronics & Photo
2x Replacement Camera Battery for Casio Exilim EX-N50 Exilim EX-N5 | eBay
Casio Exilim EX-S10 Battery and Charger - Exilim EXS10 Digital Camera and chargers
ANSMANN Li-Ion 3.7V Camera Battery Replacement For NP-40 [Pack of 1] Compatible with BenQ & Casio Cameras Including Benq DC E 510, Casio Exilim EX-FC100 & Many More - 5 Year Warranty: