The Fenix ARE-D1 is a single-channel smart charger, built for different types, and different size, rechargeable batteries, whether it be Li-ion, Ni-MH or Ni-Cd. Supports Micro USB charging and USB discharging to keep your other devices charged too. A high-definition LCD screen clearly displays the charging, discharging and battery status. The charger also includes multiple built-in protection circuits that protect against short circuits, over-current, over-voltage and reverse polarity. BATTERIES NOT INCLUDED.