The Canon NB-8L Rechargeable Lithium-ion Battery Pack , has a capacity of 1000mAh, making it possible to shoot many photographs with your Canon Powershot digital camera on a single battery charge. The battery is also compact and lightweight. There is no memory effect, so you can recharge partially drained batteries without reducing performance.
Specifications:
Chemistry Lithium-Ion
Capacity 740mAh
Output Voltage 3.6V
Dimensions 1.39 x 0.3 x 1.6" (35.56 x 7.62 x 40.64mm)