The Efest Slim K2 smart charger is a two-bay battery charger, designed to recharge multiple types of vape batteries. Compact in size, the K2 can charge two batteries at the same time with a recorded 1A charge output.
When charging, two mounted LED indicators display the charge level of your batteries, glowing blue when fully charged. When not in use we recommend you unplug and store the K2 safely. There are multiple safety protections built into the Efest K2 Charger, these include: reverse polarity protection and overcharge protection.
A full list of compatible batteries can be found in the user manual, these include: 18500 batteries, 18650 batteries and 20700 batteries. Always check your batteries are compatible with the K2 before charging.