This is the newest, High-Drain cell from Efest.  Released in 2017, the new 20700 size cell offers more power and greater capacity than the common 18650 cells which are typically used in vaping. Many devices are becoming compatible with both 20700 and 18650 size cells with a simple adapter. This new sized cell may set the standard for all high-drain cells to come.

These Efest cells are similarly rated to the iJoy 20700 cells, with a Mooch Certified 30A Continuous Discharge Rate (CDR), and an Accurately rated 3100mAh Capacity.