The Shoot LP-E8 Rechargeable Lithium-ion Battery Pack has a capacity of 1120mAh, making it possible to shoot many photographs with your Canon EOS Rebel T2i, T3i, T4i or T5i digital camera on a single battery charge.  The battery is also compact and lightweight.  There is no memory

The Shoot LP-E8 Rechargeable Lithium-ion Battery Pack has a capacity of 1120mAh, making it possible to shoot many photographs with your Canon EOS Rebel T2i, T3i, T4i or T5i 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.