Synonymous with German quality & reliability this Ansmann branded Li-Ion digital camera battery is a cost effective & reliable alternative to the Canon NB-10L original battery pack. Specifically designed to replace the Canon NB-10L, this high performance Li-Ion battery pack also features built-in circuit protection for added safety. Specifications: 7.4 V / 850 m Ah. Fits the following cameras: Canon Powershot SX40 HS Please Note: The above compatibility list may not be exhaustive. This battery requires charging before use.