The Fischertechnik Accu Charger is controlled by a micro-controller and provides reliable protection against overcharging. Features: - Very short charging time (maximum 2 hours) - Powerful NiMH rechargeable battery pack with fuse for protection against a short circuit - 8.4V - 1500mAh. Specifications: - Age: 8 Years and older - Item size: 7 x 22.7 x 14.7 cm What's in the box Fischertechnik Accu Charger