Efest SLIM K4 USB Battery Charger

Efest SLIM K4 Battery Charger | Efest Battery Charger The Efest SLIM K4 USB Charger is conveniently portable and user-friendly. LED indicators indicate when the changer is in standby mode; charging; or is fully charged. It charges the batteries automatically within a matter of seconds and is designed with both CC and CV-safe battery charge modes. The slots and monitors charge independently. USB-C port reduces the heat while charging. Superior craftsmanship is evidenced by springs made of piano wire; steel cathode with low resistance and hard chromium plating to achieve a more precise charging voltage; and 15,000+ spring testing for quality assurance. Device Details: Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 22650, 26500, 26650 Made with Quality Piano Strings Simple No Button Design Battery Life LED Indicator Light Quad Slot Battery Charger Automatic 2.0A Charging for One Battery Automatic 1.0A Charging for Two Batteries Automa