The Surefire high-performance 3.6V 18650 lithium ion rechargeable battery with MICRO-USB port for ease of charging no charging cradle needed. When plugged into a power source, two LED indicators display the current charge state: Red for charging and Green for fully charged. 8-10A discharge rate for dependability in high drain devices such as LED flashlights.
Specifications:

Nominal Voltage	3.6V
Rated Capacity mAh	3.5
Configuration
Charge Time	5-8 hrs
Style
Includes
ANSI NEDA
Chemical Composition	Li-Ion
Size
Rechargeable	Yes
Quantity