BATTERY RCR123A 550 mAh 3.7V OLIGHT (OLG-927185)

The main power source for the Olight S1R II EDC flashlight, this Olight IMR 16350 for S1R II is packed with power and will get the most out of your light. This battery features stable IMR chemistry that provides a 3.7 volt charge, allowing the S1R II to achieve peak output levels. Not short on capacity, the Olight IMR 16340 has a 550mAh capacity that will keep the S1R II running longer and stronger.

Specifications:
Battery size: 16340
Battery chemistry: lithium-ion
Nominal voltage: 3.7V
Nominal capacity: 550mAh
Maximum discharge current: 5C

Dimensions:
Length - 1.57 "(40 mm)
Diameter - 0.62 "(16 mm)
Weight: 0.634 oz. (18g)

This battery is the official recommended power source for the S1R II.