Canon LP-E12 – Camera Lithium Battery. The Canon LP-E12 Lithium-Ion Battery Pack features a 7.2V output and an 875mAh capacity. Charge it using the Battery Charger LC-E12 (not included). The Canon LP-E12 Lithium-Ion Battery Pack for EOS-M Mirrorless Digital Camera is a rechargeable lithium-ion battery pack. It powers the EOS-M Mirrorless Digital Camera.