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Nitecore UM20 USB Charger


Nitecore UM20 USB Charger


Nitecore UM20 USB Charger

With two USB charging port, the UM series is capable of charging Li-ion batteries and an external device simultaneously. It also allows you to prioritize the charging of the batteries or the device by setting the Priority Mode when you in a power failure crisis. On the front, a crystalline LCD displays charging status and battery power levels at real time.


  • Powers Li-ion batteries and an external device simultaneously
  • USB charging input and output
  • Data transfer
  • Intelligent charging program
  • LCD display presents charging status
  • Fire retardant materials
  • Insured worldwide
  • Compatible with: 18650/18490/18350/17670/17500/16340/14500/10440
  • Intelligent CC/CV charging
  • Automatically stops charging upon charging completion
  • Activates 0V batteries
  • Reverse polarity protection
  • Spring loaded slider designed to accomodate batteries
  • Adjust charging power based on detected battery capacities.
  • Display Battery levels.


  • Input Voltage: Micro USB DC 5V
  • Output: 4.2V ± 1% / 5V
  • Output Current: 1000mA / 500mA
  • Dimensions: 3.94" x 2.2" x 1.38"
  • Weight: 2.72oz

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