Nitecore UM4 Intelligent USB Charger


Product Highlights:

  • 4 Bay Charger
  • Multiple Charging Speeds – 1.5A x 1, 1.0A x 2, 0.5A x 4 /// QC Mode – 1.5A x 1, 1.5A x 2, 0.75A x 4
  • Comfortably fits size 20700 and 21700 batteries
  • Bright digital LCD display shows real time charging information
  • Built in safety protections to prevent short circuits, overcharging, and improperly inserted batteries

Package Contents:

  • Nitecore UM4 Battery Charger
  • Standard USB Power Cord
  • User Manual


  • Intelligent USB 4 Slot ChargerQC
  • 2.0 input available
  • Capable of charging 4 batteries simultaneously and controlling each slot independently
  • Up to 1,500mA charging speed in a single slot
  • Compatible with Li-ion and Ni-MH/Ni-Cd batteries with automatic detection
  • Automatic detection of battery power level and automatic selection of the appropriate voltage and charging mode (LiFePO4 and 3.8V Li-ion batteries excluded)
  • Automatic selection between 3 charging modes (CC, CV and dV/dt)
  • Energy-efficient LCD display for real-time charging information
  • Capable of manually selecting the charging cut-off voltage and the charging current
  • Automatic detection of large/small capacity batteries and automatic selection of appropriate charging current
  • Automatic termination upon charging completion
  • Reverse polarity protection and short circuit protection
  • Over-discharged battery activation
  • Li-ion battery restoration
  • Overtime charging protection
  • Made from durable and fire-retardant PC materials
  • Optimal heat dissipation design
  • Certified by RoHS, CE, FCC and CEC

Out of stock