Slim K2 USB Battery Charger - Efest

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Charger Efest Slim K2 USB Battery Charger

Slim K2 USB Charger from Efest is a dual-slot Lithium-Ion charger with micro USB input and charges batteries at 1A. Each slot is monitored independently to provide the most efficient charge. LED indicator informs when your battery is charging and when the battery is fully charged. It features reverse polarity, short circuit, overcharge protection and many more safety features. Chargers all popular batteries such as 18650 - 21700.


  • Compatible with: Li-ion 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 26500, 26650
  • Charging rate: 2 x 1A, 1 x 1A
  • Auto voltage cutoff: 4.20V±0.05V
  • Operation temperature: 0˚C - 40˚C
  • Input: Micro USB DC 5V 2A
  • Output:
    • 4.35V±1%
    • 4.2V±1%
    • 3.7V±1%
    • 1.48V±1% 500mA×2
    • 1000mA ×1


Package Content

  • Efest Slim K2 USB Battery Charger
  • Micro USB power lead
  • User manual
  • Warranty card

Standard Delivery: $7.99 (3-5 Days)

Express Delivery: $14.99 (1-3 Days)

We will pack and organize postage of your order within one - two business days of receiving your payment.

We process orders during the following times:

9am to 2pm AEST on weekdays excluding weekends and major Australian public holidays.

Click here to view all our Shipping Information

Very Important To Keep Note

In order to make a return request, it is important that you:

keep your receipt as proof of purchase date, keep your device packaging as it has the serial number.

We cannot accept returns without a receipt or the product’s original packaging. This warranty does not cover tanks, glass, atomisers (coils) or e-liquid. We also do not cover buyer’s remorse.

A warranty will be considered void if the product has been tampered with in any way, used with parts other than those sold and supplied by North Vapes, or damaged accidentally or through improper use, normal wear and tear, acts of GOD, negligence or abuse.

Click here to view our Warranty & Returns Policy