Charge your batteries with the Efest iMate R4 Charger. The Efest iMate R4 Charger is a quad slot charger which can charge up to one single 18650 battery at a fast 3.0A charging rate or up four 18650 batteries at a 1.0A charging rate.
The LED indicator light indicates when your battery is charging and when the battery is fully charged. Each slot is monitored independently to provide the most efficient charge.
The iMate R4 Charger features reverse polarity, short circuit, and overcharge protection for increased safety. The iMate R4 Charger can charge many different types of 3.6V/3.7V lithium batteries commonly used in electronic cigarettes, flashlights, electric tools, and is powered by a USB Type-C port.