Efest SLIM K2 Intelligent Charger

Sale price$6.99
In stock


Energize your devices with the Efest SLIM K2 Intelligent Charger, an expertly designed dual-channel charger that combines efficiency with user-friendly features. This compact USB-powered device is perfect for fast and reliable charging, offering two channels with a 1A output each to swiftly power up your 3.6V/3.7V lithium batteries. The SLIM K2 incorporates advanced features such as LED charging indicators, low voltage smart activation, and reverse polarity protection to ensure your batteries are charged safely and effectively. Ideal for daily use across various devices, it is backed by a three-year warranty, providing peace of mind with each charge.

  • Dual Charging Capability: Charges two batteries simultaneously at 1A per channel, reducing charging time and keeping your devices ready to go.
  • Smart Activation Function: Revitalizes batteries with low voltage smart activation, ensuring optimal battery health and longevity.
  • LED Charging Indicators: Each channel is equipped with its own LED indicator, providing real-time charging status at a glance.
  • Comprehensive Safety Features: Includes reverse polarity protection to safeguard against incorrect battery insertion and automatic stop feature to prevent overcharging.
  • Wide Compatibility: Ultra-compatible with a diverse range of lithium battery sizes from 10440 to 26650, catering to most electronic charging needs.

Efest SLIM K2 Intelligent Charger Compatible with: Ultra-compatible with a variety of 3.6V/3.7V Lithium batteries – 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 20700, 21700, 26500, 26650

Technical Info:
  • Input – AC 100V-240V 50/60Hz or DC 5V 1A
  • Output – 4.2V +/-.05V or DC 5V 1A
  • Battery Output Cutoff Voltage : 4.20V ± 0.05V
  • Auto Recharge Voltage: 4.10V ± 0.10V
  • SIZE/TYPE COMPATIBILITY - 18650 20700 21700
  • 18650
What's in the box:
  • Efest SLIM K2 battery charger
  • USB cable with Type-C USB Port: 5V2A
  • User Manual and warranty card
  • Scratch-off validation serial number

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