The high-capacity Opteka LP-E12 rechargeable lithium-ion 2000mAh battery is a replacement for Canon LP-E12 Battery. It features lithium technology, which ensures maximum battery life and maximum power. It also features no memory effect that lets you recharge partially drained batteries without reducing performance. Beware of low quality knockoffs on eBay, they can often damage your camera. Opteka Batteries are Guaranteed. Works for the following: Canon EOS-M & EOS Rebel SL1 (100D)