The Efest Slim K2 charger is a portable 2 port intelligent charger with a fast 1.0A charge that was made to charge different sized batteries and comes with multiple protections so you can charge safely.
The Slim K2 charger may be petite but it is constructed with the highest quality. The spring is crafted from piano wire and has been tested to spring 15,000+ times. Steel cathode brings low resistance and hard chromium plating is implemented to provide a more precise charging voltage.
Fast charging: 1.0 amp charge
Accommodates 3.6V and 3.7V lithium batteries in different sizes