4200mAh | 3.7 Volt Li-Ion Rechargeable Battery| 18650 | for DIY or Solar Gadgets or Device



Battery Type: 18650 rechargeable
Chemistry: Li-ion
Nominal Capacity: 4200mAh
Minimum Capacity: 4200mAh
Nominal Voltage: 3.6V
Charge Voltage: 4.2V
Internal resistance (mΩ):50-61
Max. Discharge Current: 5A
Pulse Discharge: 10A
Charging current by charger: 1A (recommended) 2A (maximum)

– 1 rechargeable 18650 Li-ion battery

Note: Batteries are shipped from factory with partial charge to meet optimum storage conditions. Fully charge before use.
Warnings: Do not expose battery to heat or throw in to water. After extended periods of storage, it may be necessary charger the battery to obtain the maximum performance every three months. Keep the battery out of reach of children.


3.7 VOLT Li-iON 18650 BATTERY 4200 mAh

Diameter : 18+/-0.2mm
Height : 67.5+/-0.5mm
Weight : approx. 48g
Voltage : average 3.7V
Cut-off voltage : 3.0V
Internal impedance : less or equal to 80 milli-ohm
Cycle performance : 90% of initial capacity at 1000 cycles
Cycle life : > 500 cycles
Charge : current = 0.5C mA, voltage = 4.2V, end current = 0.01mA
Discharge : current = 0.5C mA, end voltage = 3.0V
Max. charging current: 1C mA
Max. discharging current 1C mA (for continuous discharge)


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