Uniross Super Compact multi battery charger with 4x AA ( 2000 mAH ) NiMH Rechargeable Batteries [ UCU004A ] Advances Features Easy Charge: by USB-C or Micro-USB Charge: AA / AAA / 9V Quick & Optimized charging Features Safety Features Battery Technology Nickel Metal Hydride (NiMH) Wrong polarity protection Yes Compatibility AA, AAA, 9V Block Short circuit protection Yes Charging Indication LED Light Alkaline cell detection Yes Charging Slots 4 *(9V 2 Pieces) Bad cell detection Yes Number of Channels 6 Minus Delta V cut-off Yes Input Source Micro-USB: 5VDC 1A USB-C: 5VDC 2A Sound Indication No Charging current Ni-MH: 1-2pcs: AA-300mA Ni-MH: 1-2pcs: AAA-120mA Ni-MH: 1-2pcs: 9V Block-35mA Timer Control Yes Discharge Function No Temperature control Yes Power Bank Function No Measurements Included Dimension (mm) 67 x 27 x 112 USB-A to Micro-USB cable [22cm] Weight (g) 60 User Manual For More Info. Click Here For More Uniross Product Click Here