DescriptionFSAW18650A: AW Lithium 18650 3.7V 2200mAh BatteryFOURSEVENS
This is the AW battery cell rated for high current. It is the top of the line in rechargeable cells, which is why FOURSEVENS recommends AW Brand batteries as their secondary line (rechargeable). This battery is rated at 2200mAh and up to 4.2V when fully charged, normal output is 3.7V. Use with the FOURSEVENS Single-Bay Smart Charger for best results.
Please Note: there are bumps on the NEGATIVE terminal of these cells. This is in place to facilitate them being used in series. Be sure of your polarity when installing in the flashlight as any flashlight these may be used in will NOT have reverse polarity protection.