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Efficiency at its finest, the Efest Slim K2 Charger is a 2-bay charger with a lightning-fast 1A CC current. Awesome features are running amok through this charger: reverse polarity, over-charging detection, and short circuit protection.


The Efest Slim K2 Charger comes equipped with a steel cathode with low resistance and hard chromium plating processing for a precise charge and is also locked and loaded with a piano wire spring for a smooth slide for your batteries (tested over 15,000 times for quality control!). Two LED light indicators on top show the status of your charge as this charger supports any 3.6V/3.7V lithium battery.


Charge up your batteries in the best way possible with the Efest Slim K2 Charger!




Fast charging mode 1.0A

Portable design with high-quality piano strings

Battery Life LED Indicator light

Reverse polarity protection

Activation function

Auto detect charging function

Over charging protection

Short circuit protection

Single Slot 5V/1A Micro USB Charger




AC Input Power: AC 100~240V 50/60Hz

DC Output Power: DC 5V 1A

DC Input Power: DC 5V 1A

Operation Temperature: 0C ~ 40C

Storage Temperature: -40C ~ 70C

Fit to 3.6v or 3.7v lithium battery in different sizes



What’s In The Box:


Slim K2 Charger body

USB cable

Warranty card

Operation manual


Shipping Weight 0.2000kg

Great product and great value

By: on 13 December 2018
Best value for money and great customer service from sellers


By: on 19 February 2018
Just as described. Shipping was phenomenal.

Excellent Product.

6 December 2017
Highly recommend for fast charging. Compact enough to carry for travelling. Cheers vape4life on fast delivery

Doesn’t fully charge

3 December 2017
I bought this a month ago and wasn’t getting a full day out of my battery’s, my mate charged my battery for me and now I get a day and a half out of them. I suggest pay extra and buy the next version up

Slim K2 Charger

13 September 2017
As always Vape4life never disappoints me. Shipping is fast and product is good. best charger for $10. Highly recommend this charger.

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