The Canon LP-E4 lithium-Ion battery pack is the perfect power source for select Canon cameras. Has a battery capacity of 2300mAh and voltage of 11.1v charged using the LC-E4 battery charger. The battery pack is rechargeable, allowing for multiple usage. The battery can hold its charge well and does not suffer from memory effect. Moreover, Lithium- Ion batteries offer the best energy to weight ratios of any battery technologies, ensuring that the batteries remain small and lightweight. Compatible with Canon EOS-1D Mark III, EOS-1Ds Mark III, EOS-1D X, EOS-1D C, EOS-1D Mark IV Digital Camera.