Internal features: Microporous barrier protects delicate internal elements Pressure relief valve activates in the event od a rapid temperature increase Built-in PTC to inhibit high current surges Innovative anode design with high temperature resistanceExternal features: Equipped at both ends with a nickel plated stainless steel protector ensuring high impact resistance, good electrical conductivity and oxidation resistance Tough plastic circuit board protector Coated with durable metallic film to guard against abrasion All batteries have high-performance protected circuit. Automatically protects against overcharge, over discharge and short-circuiting Utilizes a high quality battery protection IC from Seiko instruments Japan Utilizes two high-power MOS FETs in the current regulation module for better efficiency and superior output Capacity: 3600mAh Voltage: 3,6VOutput: 8A Charging Current: Maximum 2A (1A current is recommended) Weight: 49,9g Length: 69,7 +/ 0,3mm Diameter: 18,5mm +/ 0,2mm