The ACCU-R6/2400-EG/B4 is a rechargeable battery manufactured by the Energizer brand. It is a 6 cell, 24V, 2400mAh rechargeable NiMH battery designed for use in motorized devices and robotic applications. It is also used in hobbyist applications such as radio control cars, boats, and airplanes. The battery has built-in overcharge, over discharge, and short circuit protection, and is RoHS compliant.