Battery Chargers & Batteries
Battery Chargers & Batteries
Battery Chargers & Batteries
Battery Chargers & Batteries
Battery Chargers & Batteries
Efest (also written EFEST) makes smart battery chargers for 18650, 20700, 21700 and other lithium-ion cells, from the one-bay Slim K1 to the four-bay LUC V4 Elite.
At VSS you can shop the Efest LUC V4 Elite, the Lush Q2, and the Slim K1, Slim K2 and Slim K4 chargers.
Efest LUC V4 Elite
The LUC V4 Elite has four bays and an HD LCD display that shows charging current, voltage and battery status. It charges Li-ion cells at 0.25A, 0.5A, 1A or 2A (four at 1A or two at 2A), also takes NiMH and Ni-Cd sizes like AA and AAA, and has a 5V/1A USB output. It plugs in with the included 12V/2A power adapter.
Efest Lush Q2 and Slim Chargers
Lush Q2
two bays, 0.5A, 1A or 2A charging and an LED display, with an AC adapter in the box.
Slim K1
one bay at up to 1A, powered by micro-USB. A white LED means charging and a blue LED means done.
Slim K2
two bays that charge at 1A, with a micro-USB input and LED status lights.
Slim K4
four bays at up to 1A, with a USB-C input and LED charging lights.
The Slim K1 and K2 list cells from 10440 to 26650, including 18650 and 20700. The Slim K4 and the LUC V4 Elite also take 21700. Compare more battery chargers.
Efest FAQ
Which Efest chargers take 21700 batteries?
The LUC V4 Elite and the Slim K4. The Slim K1 and K2 list 18650 and 20700 but not 21700.
Which Efest charger charges fastest?
The LUC V4 Elite and the Lush Q2 both offer 2A charging. The LUC V4 Elite can charge two cells at 2A at once.
Can the LUC V4 Elite charge AA batteries?
Yes. It takes NiMH and Ni-Cd A, AA, AAA, SC and C cells, plus Li-ion sizes from 10440 to 26650.
Which Efest chargers run on USB power?
The Slim K1 and Slim K2 use micro-USB, and the Slim K4 uses USB-C.
Need cells to go with your charger? Shop vape batteries.