EFEST SLIM K4 USB-C Charger [ 1 pc ]


SLIM K4 USB-C Charger (Battery not included)

Discover the Efest SLIM K4 USB-C Charger, a 4-bay intelligent charger with Type-C powering, accepting a myriad of battery sizes with rapid charge function. Constructed from flame retardant ABS materials, the SLIM K4 USB-C Charger allows for rapid and safe charging thanks to the Type-C Port at the back, providing up to 2000mAh when used with 2 bays, relegating 1000mAh for each bay. When all four bays are used, charging is reduced to 500mAh per slot. Certified by FCC, RoHS, and CE, the Efest SLIM K4 is loaded with safeties and protections that will keep the charger, installed batteries, and user safe from failure.


  • Flame Retardant ABS Material
  • Intelligent Protection Chipset
  • 4-Bay Charging Ports
  • LED Charging Indicator Lights
  • Made from Fire Retardant PC Material
  • Piano Wire Spring - Tensile Test
  • Spring-Loaded Sliding Battery Charging Platform
  • Auto-Detect Charging Function
  • Standard Mode: 1000mA*1 MAX
  • Input: DC 5V/1A
  • Activation Recovery Function
  • Stops Charging Automatically
  • Low Voltage Smart Activation Recovery Function
  • 0V Activation Recovery Function
  • Short Circuit Protection
  • Over-Charging Protection
  • Over-Discharging Protection
  • Reverse Polarity Protection
  • 0V Activation Recovery Function
  • Hardware & Software Double Protection
  • Type-C Port
  • Compatible with 10440, 14500, 16340, 17340, 18350, 18500, 18650, 26500, 26650, 20700, 21700
  • Certified by FCC, RoHS, CE

    Includes :

    • 1 EFEST SLIM K4 Charger
    • 1 User Manual

    Below are some important safety cautions for Vapes :

    • If using a mechanical mods, know the amperage limit of your battery, don’t out too much of strain on it.
    • Batteries with torn wrapper need to be replaced.
    • Don’t leave your batteries in your car.
    • Don’t keep your batteries on your pocket with loose change or keys.
    • Do keep your batteries in approved batteries case when not in use.
    • Keep your battery charger in a place where you can keep your eye on it.
    • Excessive heat (over 80F) and cold(less than 40F) are bad for batteries.
    • Battery eventually wear out, and need to be replaced every 3-6 moths, depending on use and battery quality


     We are not responsible for any injury or damage that may occur with improper use or mishandling of Li-ion (Lithium-ion), LiPo (Lithium-ion Polymer), and other rechargeable batteries. Please ensure that the user has sufficient knowledge in the use and care of rechargeable batteries before using this product. Always charge batteries on clean, fire-proof surfaces. Never leave charging batteries unattended. Do not use any batteries or chargers with visible damage. Always store and transport rechargeable batteries in a safe, non-conductive container in a controlled environment. Dispose of all batteries and chargers properly according to local laws and mandates.

    EFEST SLIM K4 USB-C Charger [ 1 pc ]

    • Brand: Efest
    • Product Code: Efest

    Tags: EFEST, SLIM, K4, USB-C, Charger