Efest Slim K2 Dual Battery Charger
This two station battery charger can charge up to two batteries at a time, perfect for your 18650s but also compatible with a range of other sized cells (see below).

Features a small LED screen that shows the current charge level of each battery and comes complete with USB to micro USB charging cable.

Safe charging mode, automatic over-charging protection and reverse polarity protection function.

Full list of compatible 3.6V/3.7V rechargeable lithium batteries- 10440, 14500, 16340, 17340, 18350, 18490, 18500, 18650, 26500, 26650, 20700, 21700.

Also available as a single station or four station charger.