WARNING: This product contains nicotine. Nicotine is an addictive chemical.


Your Cart is Empty

Efest Slim K2 Battery Charger

The Efest SLIM K2 Two-Slot Battery Charger is a dual slotted battery charger, designed to charge high-amp battery cells in a quick and rapid fashion. Integrating an intelligent battery detection, the SLIM K2 will start charging batteries within seconds of contact with the terminals, providing a 1000mAh recharging speeds to each of the independent bays.

Quick Links:

Efest Slim K1 Battery Charger
Efest LUC V4 Smart Charger


  • Made from Fire Retardant PC Material
  • Dual Slot Charger
  • Independently Charging and Monitoring
  • Intelligent Two Bay Battery Charger
  • Piano Wire Spring - Tensile Test
  • Convenient LED Battery Charge Indicator Light
  • Spring-Loaded Sliding Battery Charging Platform
  • Auto-Detect Charging Function
  • Low Voltage Activation Function
  • Input: DC 5V/2A
  • Reverse Polarity Protection
  • Over-Charging Protection
  • Short-Circuit Protection
  • Activation Recovery Function
  • Stops Charging Automatically
  • Quality Certification
  • MicroUSB Port
  • Compatible with 20700, 26650, 18650, 18500, 18350, 17340, 16340, 14500, 10440, 26500
  • • Certified by RoHS, CE


  • 1 Efest Slim K2 Two-Slot Battery Charger
  • 1 MicroUSB Cable
  • 1 User Manual