Our Vaper Level system makes it easier for you to find the right vape products for you. Each product page is tagged with a recommended experience level which is colour coded and easily recognisable. View out full guide to find out what level you are!
Absolute beginners looking for a simple device to make the switch from smoking.
Moderate experience with vaping, confidence: changing coils and requiring adjustable settings.
Experienced and knowledgeable vapers needing advanced features or rebuildables.
6 Protection levels
Compatible with 18650, 26650, 20700 21700 batteries
USB-C powered
Introducing the Efest K4 Slim, a high-performance USB-C charger catering to four battery cells with swift charging capabilities. Compatible with various battery sizes, this sleek charger ensures a quick recharge moments after cell installation. The standby mode and fully charged status are indicated by a vibrant blue light, while the white light signals that the battery cells are properly set.
With an auto-detect charging current ranging from 1.0A to 0.5A for different configurations, the K4 Slim ensures safe charging throughout.Each slot is independently monitored and charged, and the charger incorporates a low-voltage smart activation recovery function. Remarkably lightweight and portable, the Efest K4 Slim is your ideal companion for efficient and safe battery charging.
Efest
18650, 26650, 20700, 21700
Easy LED Indicator display, USB C Connection
Overcharge, Short circuit, Reverse polarity, Over discharge, 0V recovery function, Hardware/software double protection
1 to 2 Cells at 1 AMP, 3 to 4 Cells at 0.5 AMP
RoHs, CE
Get free delivery in UK when you spend £20 or over*.
Plus same-day shipping before 3pm.
Order online & collect from our Birmingham Minworth store on the same day*.
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All major cards also accepted.
Changed your mind?
Return unopened products to us in 14 days for a refund*
