Lithium Li-Ion 3.7V 16340 CR123 850mAh Rechargeable Battery

This is a Lithium Li-Ion 3.7V 16340 CR123 850mAh Rechargeable Battery with a button top to the positive terminal.
16340 3.7V Battery for general application including led torches and lasers.

Specifications:
16340 850mAh 3.7V Battery
Battery: 16340 or CR123
Nominal Voltage: 3.7V
Nominal Capacity: 850mAh
Type: Li-ion, Rechargeable
Charging Method: CC/CV 4.2V
Discharge Voltage: 2.7V
Energy: 3.145Wh
Battery Size: 16.50 mm x 33.75 mm
Min. Rated Capacity: 825mAh
Standard Charging Current CC: 400mA
Rapid Charging Current: 800mA
Continuous Discharge Current: 3A
Weight: 20g
Connection: Button Top, flat base
Battery Protection Circuit: No