Efest SLIM K2 Charger $6.27

Here’s a cheap deal for the Efest SLIM K2 Charger. It features a powerful yet portable design, quick charging, compatibility with many different types of batteries, LED battery life indicator, and several safety features to keep you safe while you charge.

  • USA Deal: $6.27 get-this-deal Use coupon code CVDS15 at checkout

  • Worldwide Deal: $10.79 get-this-deal Use coupon code CVD2019 at checkout (10% off sitewide except clearance)


The Efest Slim K2 is a high-quality transportable two-bay  charger that is built with a micro USB port for power. It supports 1.0A charging with 2 batteries in the bay and is able to take 3.6V or 3.7V batteries in wide range of sizes.

This charger is made with reverse polarity protection, an activation function, an auto-detect charging system,  short circuit protection and overcharge protection. The springs in the bays use piano wire to result in effortless sliding action upon battery installation and removal. Each bay is monitored separately whenever batteries are inserted. And,  a convenient LED light shows the charge level of the battery in each slot.


Features & Specifications

  • Compatible Batteries:
    • 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 26500, 26650
  • AC Input Power: 100V – 240V 50Hz/60Hz
  • DC Input Power: 5V 1A
  • 1A CC Current: 1000mA ± 10%
  • Standby Current: <20mA
  • CV Cut-Off Current: <100mA
  • Cut-Off Voltage: 4.2V ± 0.05V
  • Activation Current: 50mA – 100mA
  • Auto Recharge Voltage: 4.10V ± 0.10V
  • Operation Temperature: 0℃ ~ 40℃
  • Storage Temperature: -40℃ ~ 70℃

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Griffin Goodwin