Trustfire 21700 4000mah_x000B__x000B_ 40a unprotected flat top

The TrustFire IMR 21700 Battery is a high drain rechargeable battery designed for high-drain devices.
With a 4000mAh nominal capacity, the TrustFire IMR 21700 battery will provide power, longevity and the flat-top design will align to your device’s safety needs.
The TrustFire 21700 Rechargeable Li-ion Battery (4000mAh, 3.7V) equals the power of 2400 AA batteries.
FEATURES
Rechargeable Li-Ion Battery
No Memory Effect
Long Life Battery
Rechargeable 1000 Times
Low Self Discharge
Unprotected
Charge Time Approximately 5-7 hours dependent on quality of charger
21700 Designation, model
3.7 Volts
4,000 mAh
40A
14.8Wh
Flat Top
70.7mm Length
21.5mm Diameter
75 grams

What’s in the box
1 x Trustfire 21700 4000mAh 40A FT