Two Ultrafire® brand 18350 rechargeable batteries for powering the Survival Laser I, 1.4, II/IISE, III, RH, V or GX. Note: Not for use with Survival Laser R. Note: 18350 batteries have a higher capacity than most RCR123A batteries and will permit longer total run times. These batteries are also slightly longer than RCR123A (16340) batteries and the host tailcap may not screw on completely.
Capacity: 1200mAh (manufacturer rating)
Voltage: 3.7V (4.2V at full charge)
Protection circuit: No