NITECORE NL189 3400mAh 12.6Wh 3.6v Protected Button-top 18650 Rechargeable Li-ion Batteries for High Drain Devices.

Nitecore NL189 3400mAh 18650 Rechargeable Battery18650 Li-ion Rechargeable Battery 3400mAh 3.7v. Integrated battery overcharge/discharge protection circuits, High discharge performance Li-ion Rechargeable Battery. Actual measure capacity is approximately 3400mAh which is 62% more that a common 18650 rechargeable battery.FeaturesMore than 500 charge discharge cycles.Purpose designed for high performance equipment.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 - FEE in the current regulation module for better efficiency and superior output.Certified by CE, UL and ROHS Internationally insured by Ping An Insurance (Group) Company of China, Ltd.Internal Safety featuresA. Micro porous barrier protects delicate internal componentsB. Pressure relief valve activates in the event of rapid temperature increase.C. Built-in PTC to inhibit high current surges.D. Innovative anode design with high temperature resistance.External safety featuresA. Equipped at both ends with a nickel plated S.S protector ensuring high impact resistance, good electrical conductivity and oxidation resistance.B. Tough plastic circuit board protectorC. Coated with durable metallic film to guard against abrasion.SpecificationNL189Capacity: 3400mAhVoltage: 3.7vCharging Current: Maximum 2A (1A current recommended)Weight: 47.6gDiameter: 18.4mmLength: 69.2mmBundle ContentNitecore NL189 high capacity 3400mAh 18650 Li-ion rechargeable battery.