• High capacity 21700 3.7V 4000mAh lithium battery suitable for solar devices, power tools and electronics. Flat top design ensures stable voltage, longer runtime, rechargeable durability and dependable everyday energy supply.

- Long Cycle Life
- No Memory Effect
- High energy density
- High Rate Charge/Discharge
- Green Energy and Pollution-Free
- Good consistency, low self discharge
- High working voltage for single battery cells
- High level of safety, vision Lithium ion batteries catch no fire and cause no explosion in breaking experiment, with acupuncture, smash, drop, and so on

Item:Specification

1.Brand:DOUBLEPOW

2.Product NameLi-ion Rechargeable Battery

3.Model:DP-21700

4.Capacity Type:Full High Capacity in 10% International Tolerance

5.Nominal Voltage:3.7V

6.Size:21*70mm

7.Operation Temperature:Charging: 0~45°C,Discharging: -20~60°C

8.Cycle Life:≥1200 times

9.Protection Function:Over Charge, Over Discharge, Over Current, Short Circuit, etc.

10.Application:Power Tools,LED Lights,Flashlight,ect.

11.Net weight:90g