This high capacity rechargeable lithium-ion battery is a replacement for the Casio NP-40 (Part# NP40DBA). It features lithium technology, which ensures maximum battery life and maximum power. It also features no memory effect that lets you recharge partially drained batteries without reducing performance. Compatible with Casio Casio Exilim EX-P600, EXP600, EX-Z30, EXZ30, EX-Z40, EXZ40, EX-Z50, EXZ50, EX-Z500, EXZ500, EX-Z600, EXZ600, EX-Z850, EXZ850, Pro EX-P505, EXP505, Pro EX-P600, EXP600, Pro EX-P700, EXP700, EX-Z50, EXZ50, EX-Z55, EXZ55, EX-Z57, EXZ57, EX-Z750, EXZ750 & Similiar models using the Casio NP-40 battery.