Specification: Name 18650 Rechargeable Battery Brand Shockli Capacity 3600m Ah Continuous / Max Discharge Current 20A/30 A Internal resistanceless than 30 m Nominal voltage 3.7 V Head type Flat top Protected No Rechargeable battery Yes Rechargeable timeup to 500 times Standard charge 0.3A~3A (Recommend 0.5A~1.5A)/ 4.2V+/-0.05 V Working voltage 2.75
- 4.2 V Charging time 4.5 hours (Charge current 1.0A) Customer Instructions: Ideal for: moderate 20A current device (2 X 18650 UP to 120W). Recommend 50W- 100 W Ideal for: High powerful flashlight, contact good if used end to end in series for flashlight Must charge battery fully before first use Package Included:2 X 18650 battery 1 X 18650 plastic case