These are high quality, rechargeable 20700 batteries from Efest, rated to have a 3100mAh capacity and a discharge rate of 30A. These batteries are only for use in mods that explicitly state compatibility with these batteries.
Please note that 20700 batteries are not compatible with 18650 mods.
Check out our Battery Safety Guide for tips on keeping your batteries in tip-top condition.
30A Max Discharge Current