Battery 18650 3400mAh 3.7V [ULTRASPIRE Ultra Spire] Lumen 400 2.0 600 4.0 850Duo exclusive battery

Ultra Spire's light "LUMEN Series".
It can be used with Lumen 400 2.0 / 600 4.0 / 850duo.

* Of course, you can use it in other series.
* It can also be used for products from other companies' manufacturers (eg, red lens MH10/NEO10R, etc.), but we will not guarantee the operation.

■ Size: 18.1-18.55φmm
■ Rated voltage: 3.7V
■ Capacity: 4.2V-4.3V
■ Charging mode: C.C/C.V
■ Charging method: Standard charging 0.2c
■ Charging time: Standard charging 4-6 hours (inside the lighting unit)
■ Discharge end voltage: 2.75V
■ Superjust voltage: 4.2V-4.3V/cell
■ Over-discharged cut-off voltage: 2.5V-4.5V/cell
■ overcurrent: 2.5-5.0A
■ Operation temperature (charging): 0 to 45 ° C
■ Operation temperature (discharge): -20 ~+60 ° C
■ Storage: -5 ~+35 ℃
■ Cycle time: 500 cycle