Efest Slim K4 USB-C Charger

The Efest Slim K4 USB Type-C Charger is an intelligent, four-bay, lithium battery charger for vapes, with a Type-C USB charging port. The SLIM K4 Charger can charge four batteries at once and is designed with some smart functions, such as:

• auto-detect charging
• monitors and charges each slot independently
• low voltage smart activation recovery
• 0V activation recovery.

It is a safe battery charger to charge your electronic cigarette (e-cigarette) external batteries with its built-in intelligent protection chip.

Charge practically any size Lithium Ion (Li-ion) IMR 3.6V/3.7V batteries, including: 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 26500, 26650, 20700, 21700.

The LED indicator will show you the status of charger. The indicator light will turn

• blue in standby mode/full charged
• white while charging.
  

Please note:

• A USB port with at least 2A output is recommended.
• See our battery safety blog post for information on safely using your e-cigarette batteries.

Features & Specs

• Compatible with: Li-ion 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 26500, 26650
• Charging rate: 4 x 0.5A, 3 x 0.5A, 2 x 1A, 1 x 1A
• Auto voltage cutoff: 4.20V±0.05V
• Operation temperature: 0˚C - 40˚C
• Input: Type-C USB DC 5V 2A
• Output:
• 4.35V±1%
• 4.2V±1%
• 3.7V±1%
• 1.48V±1%

Package content

• Efest Slim K4 USB-C Charger
  
• Type-C USB power lead
• User manual
• Warranty card

This product does NOT contain nicotine