Multi Battery Power Pack offers both enhanced handling capabilities as well as extended battery life while shooting. It accepts one additional EN-EL15 lithium-ion battery pack to increase the camera's battery life. The design of the grip improves shooting in the vertical orientation and also provides an overall more ergonomic structure for holding the D750. An additional shutter release button, AE/AF lock button, multi selector, and main- and sub-command dials are all incorporated into the grip's design to benefit more natural and intuitive handling.