This battery has a capacity of 2300 mAh, so it is possible to shoot up to 2200 shots at normal temperatures on a single battery charge. The battery is also more compact and lighter in weight than previous battery models. The battery communicates with the EOS-1D Mark III, so that you can always check the remaining capacity (marks in six levels and percentage in 1% increments), shutter count, and recharge performance (3 levels) on the camera's power source info screen.

NOTE: This battery is compatible with the 1D X, but it is not recommended for maximum output from battery life.