Duratrax NiMH 8.4V 5000mAh Stick Standard Plug FEATURES: Sport pack for cars, buggies, trucks, boats and more that require a 7-cell 8.4V stick pack configuration REQUIRES: Charger capable of charging NiMH batteries, such as the DuraTrax Onyx series or the Great Planes TRITON series REQUIRES: Charger capable of charging NiMH batteries, such as the DuraTrax Onyx series or the Great Planes TRITON series