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Efest Slim K2 USB Vape Battery Charger

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Charge your batteries with the Efest Slim K2 Charger. This new charger from Efest has a fantastic portable design yet is made from high quality materials at a cost-efficient price.

This dual bay battery charger features an easy to read LED battery indicator, so you can quickly and efficiently see when your batteries are fully charged. It can also intelligently charge different types of 3.6V/3.7V lithium batteries at an output of 1A! This smart charger has numerous safety features such as; reverse polarity, short circuit and overcharge protection built into its hardware to make for a perfectly safe and even charging experience.

Compatible with 10440, 18500, 14500, 18650, 16340, 26500, 17340, 26650, 18350, 20700 & 21700 batteries, this kit is a must have for anyone with an external battery mod. Always check your batteries are compatible with the K2 before charging.


  • AC Input Power - 100~240V 50-60Hz
  • DC Input Power - DC 5V 2A
  • DC Output Power - DC 5V 2A

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