Efest | Slim K4 USB-C Charger

Efest | Slim K4 USB-C Charger

Sale price$24.95
Pickup available at Itsvaping - Tuggerah Usually ready in 2 hours

Efest | Slim K4 USB-C Charger

Itsvaping - Tuggerah

Pickup available, usually ready in 2 hours

168 Pacific Highway
Shop 4
Tuggerah NSW 2259

In stock

The Efest Slim K4 USB-C Charger is an intelligent, four-bay, lithium battery charger for vapes, with a Type-C USB charging port. The SLIM K4 Charger can charge four batteries at once and is designed with some smart functions, such as:

  • auto-detect charging
  • monitors and charges each slot independently
  • low voltage smart activation recovery
  • 0V activation recovery.

It is compatible with Lithium IMR 3.6V/3.7V batteries: 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 26500, 26650, 20700, 21700.

The LED indicator will show you the status of charger. The indicator light will turn

  • blue in standby mode/full charged
  • white while charging.

Please note: 

  • a 2A USB port is recommended.
  • Batteries are NOT included. 
  • Batteries available here
  • See our battery safety page for information on safely using your e-cigarette batteries.


  • Four-bay charger can charge up to four batteries simultaneously
  • Compatible with many battery sizes, including 18650, 20700, 21700 & 26650
  • Charging speed: 4 x 0.5A, 3 x 0.5A, 2 x 1A, 1 x 1A
  • Automatically stops charging
  • Reverse polarity protection
  • Input: Type-C USB DC 5V 2A
  • Output: DC 4.20V±0.05V 0.5A*4/0.5A*3/1A*2/1A*1


1 x Efest Slim K4 USB-C Battery Charger
1 x Type-C USB cable
Warranty card
User manual