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.Battery Compatibility:Li-ion batteries: 10440, 14500, 16340, 18650, 21700, 26650Ni-MH or Ni-Cd batteries: AA, AAA, CVoltage:4.2V/3.65V: 10440, 14500, 16340, 18650, 21700, 26650 (Li-ion)1.5V: AA, AAA, C (Ni-MH/Ni-Cd)Current:0.5A/1.0A/2.0A: 10440, 14500, 16340, 18650, 21700, 26650 (Li-ion)0.5A/1.0A: AA, AAA, C (Ni-MH/Ni-Cd)Weight: 2.2 oz. (61.3g) excluding cableSize: Length: 4.7 (120mm) Width: 1.5 (38mm) Height: 1.2 (30mm)