High-quality cell with long lifespan and high cycle stability. Protection/PCB with short circuit, overcharge, and deep discharge protection. Designed for use in flashlights, LEDs, battery carriers, etc. Keeppower 18650 lithium-ion battery with PCB protection. Please check the dimensions of the cell before purchasing! Due to the built-in electronics, the cell is not suitable for every application! Height and diameter are larger than a standard 18650 cell without PCB.

Cell: Panasonic NCR 18650 A
Capacity: 3100 mAh
Min. Capacity: 2950 mAh
Nominal Voltage: 3.7 V
Charge End Voltage: 4.2 V ± 0.05 V
Discharge End Voltage: 2.75 V
Calculated Internal Resistance: 0.10 Ohm
Positive Terminal Raised (Button Top)
Max. Discharge Current: 2C = 6.2 A
Chemistry: LiCoO2 (ICR)
Integrated Protection Circuit PCB: 10 A
Charging Method: CC-CV
Diameter: 18.60 mm ± 0.15 mm
Height: 69.5 mm ± 0.15 mm
Weight: 49 g ± 1 g

Test Results: Lygt-Info
Safety Notes: Please note that removing or damaging the protection electronics (PCB) can lead to a short circuit, fire, or explosion.

Additional Features: Lithium-ion batteries are thermally stable and do not suffer from memory effect. They operate on the basis of lithium and are characterized by a high energy density.

Technical Data for "Keeppower 18650 - 3100 mAh, 3.7 V Li-Ion Battery Protected":
Normal Charge Current: 1650 mAh/3h
Operating Temperature Charging: 0 °C - 45 °C
Operating Temperature Discharging: -20 °C - 60 °C

Notes: Charging lithium-ion batteries requires a special charger that charges the batteries using a specific charging method (CCCV = constant current, constant voltage). The batteries must not be charged above a voltage of 4.2 volts, as this poses a risk of fire and explosion. It is advantageous to charge the batteries only up to about 4.1 volts, as this significantly increases the lifespan and number of charge cycles (potentially up to doubling).