2pcs 3.7V 4200 mah WGP Button Top Rechargeable Battery for LED Flashlight Bike Bicycle Headlamp Electric Tools;

Brand new top quality product.
High discharge performance Lithium Rechargeable Battery (NOT AA or AAA size).
It's button top rechargeable battery (not flat top battery)
More than 500 charge-discharge cycles.
Note:On first charge, it gives less nominal 4200 mAh. It will take almost 10 cycles of charging, discharging for reaching maximum capacity would may be up to 4200 mAh.

Specification:
Dimension :Button Top (NOT Flat Top) 66+/-1 mm long, 18+/-1mm diameter
Voltage:3.7V
Capacity 4200mAh
Material: lithium cobalt
Charge voltage:4.2v±0.05v
Max Continuous Discharge: 10A
Application：Particularly suitable for flashlight, electric tools, electric bicycles, electric vehicles. torch, digital camera and other digital products.
Standard voltage is 3.7V, the voltage of full charge & empty condition is 4.2v & 2.5v respectively

Package:2 x rechargeable battery