3.6 volts; 2,600 mAh; Li-SOCI2 (Lithium Thionyl Chloride); High power;Length: 5.50"Width: 2.75"Height: 0.70"Note: Due to the existence of lithium batteries, additional shipping charges or restrictions may apply. Shipping restrictions may require a ship method that is limited to GROUND and this may impact time in transit and available delivery locations.;