The Powertac 2600mAh 18650 battery with PCB protection. Carefully designed to power any 3.6V device that needs high energy density and low weight. Specifications: Unique and New! With PCB protection! Li-Ion 18650 cylindrical rechargeable batteries with Internal Voltage protection PCB! Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25V. Unique PCB design and patent pending. 3.6V 2600mAh high capacity High energy density and lower weight than other rechargeable batteries Manufactured under ISO9001-2000 to assure quality Battery tested based on International Electrotechnical Commission (IEC) standard to ensure capacity, quality and life time. Capacity* Nominal 2600 mAh, Minimum 2450 mAh Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25V. UNIQUE INTERNAL PCB! Nominal Voltage: Average 3.6V Cut-off Voltage: 3.0V Internal Impedance: less or equal to 180 milliohm (with PTC) Cycle Performance: 90% of initial capacity at 400 cycles Cycle life: > 500 cycles Charge: Current = 0.5C mA Voltage = 4.2 V End Current = 0.01 mA Discharge: Current = 0.5C mA End Voltage = 3.0V Max. Charging current: 1.5C ma Max. Discharging current 1.5C ma (for continuous discharge) Operating temperature range: -4F-122F / -20C-50C Dimensions: Diameter 18+/-0.2 mm Height 66+/- 0.2mm Weight (Typical) Approx. 46 g
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