Opteka LP-E12 LPE12 2000mAh Ultra High Capacity Li-ion Battery Pack for Canon EOS M M2 Rebel SL1 100D DSLR Digital Camera Ultra high power 2000mAh Extended shots - Up to 35% more then original Lithium Ion 7.2v Works for the following: Canon EOS-M & EOS Rebel SL1 (100D) 2 Year Performance Guarantee