Efest Slim K2 Intelligent Battery Charger


MSRP: $17.99
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Efest Slim K2 Intelligent Battery Charger


The Efest Slim K2 Intelligent Battery Charger is its widespread reputation of being a dynamic charger and more importantly, occupying a sleek body for easy portability.   The Slim K2 is a dual-slot battery charger, so you're able to charge two batteries simultaneously at an aggressive speed.  The beauty behind the capability of this charger is that you're able to charge different battery types in each port of the charger. While charging a single battery, the Slim K2 provides a charging current of 1A and re-powers the battery effortlessly and quickly. Not to be outdone, the top of each slot on the charger contains an active LED battery level indicator to provide the consistent status of each battery’s charge. The Slim K2 Charger is also equipped with features like Reverse-Polarity Protection, Short-Circuit Protection, and Overcharge Protection, to ensure the protection of your charger and the batteries.



  • AC Input: 100V – 240V (50/60Hz)
  • DC Input: 5V (1A)
  • DC Output: 5V (1A)
  • Auto-Recharge Voltage: 4.10V
  • 1A CC Current: 1000mA
  • Cutoff Voltage: 4.2V
  • Standby Current: <20 mA
  • Activation Current: 50mA – 100mA
  • Compatible with: 10440, 16340, 14500, 14650, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 22650, 26500 and 26650



Note: Batteries are sold separately.