Efest Slim K1 Charger



The Efest Slim K1 battery charger is an excellent, space-saving, and cost-efficient universal battery charger.

Safety Advice:

It is important to understand the safety measures for Lithium-ion batteries. Incorrect use of these batteries may cause it to leak, produce heat, catch fire or even explode.

Lithium-Ion batteries should never be kept loose in your pocket or purse.

4 in stock

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On orders over £40.00

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The Efest Slim K1 battery charger is an excellent, space-saving, and cost-efficient universal battery charger. It’s perfect for both travel and home use. It features a micro USB slot which allows it to charge other electric devices, such as phones, flashlights, and e-cigs. It provides separate bays which allow the use of different types of rechargeable batteries and prevents overcharging.

The Efest Slim K1 features a LED indicator that shows the charge level of each bay and indicates when the batteries are fully charged.

Several safety features have been included, such as reverse polarity and short circuit protection. This compact charger is described as perfection with a plug. Battery chargers have gradually improved, but Efest has pulled out all the stops to manufacture the perfect charger to make your life easier and more productive. Whether you are at home or away, the Efest Slim K1 is a must-have for anyone who wants to recharge different batteries quickly and efficiently.


  • Fast charging mode: 1.0A
  • Fits 3.6V or 3.7V Lithium batteries of different sizes
  • Reverse Polarity protection
  • Activation function
  • Auto-detect charging function
  • Over-charging protection
  • Short circuit protection
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