The Fenix ARE-X1 V2.0 Single-Channel Smart Charger has a maximum charging current of 1500mA and a digitally-controlled computer chip that will help extend your battery life. It features a battery level indicator that displays both the charging and discharging status. This compact battery charger has five levels of protection, including over-charge, short circuit, over-current, over-voltage, and reverse polarity. You can use the USB Type-C port to charge or discharge. This charger is compatible with many battery types, including the standard 18650 and 21700 size batteries.