Energizer ENB-C2L Digital Replacement Battery NB-2L for Canon PowerShot G7, G9, S40, S50, S60, S70 and S80 (Black) Replaces the Canon NB-2L Li-ion Battery Battery Specs: 7.4V and 650 mAh Compatible with Canon PowerShot G7/G9/S40/S50/S60/S70/S80 & similar camera models Can be used with original lithium-ion battery charger This Li-ion battery is 100% memory-free and will not suffer from the inconvenient memory effects that are typically associated with similar battery types.