Capacity: 3.9, test 45mins Nominal voltage: 1.5V Super heavy duty battery R6P Size: AA, R6P, and UM-3 Feature:<ul> High capacity for appliances with high-energy consumption Better discharge rate capability Low internal resistance</ul> Chemical structure:<uL> Cathode: high density manganese dioxide Anode: zinc gel Electrolyte: potassium hydroxide </ul> Packing: <ul> Blister packing Shrink packing-or bulk Color box available</ul> OEM orders are welcome