A spare battery is an essential accessory. No power, no pictures!
Increase your shooting capacity with this powerful BP-727 Lithium-ion rechargeable battery for Canon digital cameras. More powerful than your standard battery, this spare high-capacity BP-727 will not put constraints on how you want to shoot. Plus, this rechargeable battery is Memory Free. It can be charged at any time without hard, even if it already has a partial charge, and can be typically charged over 1000 times.