Specification: Name 21700 Rechargeable Battery Brand Shockli Capacity 4550m Ah Continuous / Max Discharge Current 22A/30 A Internal resistanceless than 20 m Nominal voltage 3.7 V Head type Flat top Protected No Rechargeable battery Yes Rechargeable timeup to 500 times Standard charge 0.3A~2A (Recommend 0.5A~1.5A)/ 4.2V+/-0.05 V Working voltage 2.75
- 4.2 V Charging time 5.5 hours (Charge current 1.0A) Customer Instructions: Ideal for: High power flashlight Package Included:2 X 21700 battery 1 X 21700 plastic case 1 X wrapper