Don't get caught with low battery power. For powerful image making, you need power! Lithium-ion batteries ensure that you won't run out. Lithium-ion doesn't require being fully run down to be recharged with peak performance. So no more guessing how close you are to the end of the battery, and worry no more about shortening the battery life with frequent recharges. The BP-915 compact lithium-ion battery pack has no memory, so you can charge at any time without the worry of lowering battery life expectancy.