EZOPower batteries will ensure optimum performance saving you time and money. This Replacement Canon LP-E12 Lithium-Ion Battery is made specifically for your Canon EOS M Digital SLR Camera and to meet or exceed the original manufacturer specifications. You can rely on EZOPower battery expertise and your camera can rely on this battery to keep it powered up and connected. The battery is also compact and lightweight. There is no memory effect, so you can recharge partially drained batteries without reducing performance. This battery features Lithium Ion technology, which ensures maximum battery life and maximum power. Also, Li-Ion batteries are lightweight and can be charged or discharged at any time without developing so called "memory effect", so they never lose their ability to hold a full charge.