Nitecore UM20 charger

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  • Save $ 400

A battery charger made to last as long as you have batteries, the UM20 is Nitecore's two slot charger with a small LCD screen to show how full your batteries are. And how long they spent charging. The UM20 will charge the two batteries independently of each other, so you don't have to worry about a CR123A making an 18650 not finish charging.

On the UM20 are two USB ports, one where an extra long cable can be wound for portable charging and connecting to computers on the bottom, and one on top that can be used to connect shorter cables, such as phone chargers. The UM20 can charge phones and batteries at the same time, through a high power adapter. Though a low one, it can prioritize phones then batteries or batteries then phones. The UM20 can also send data between a phone and laptop without damaging any data. Nitecore's UM20 is a high grade multitasker, and you owe it to yourself to pick one up.


  • Manufacturer's page: Nitecore UM20
  • USB powered Li-ion battery charger
  • High definition LCD displays real time charging status
  • Features USB output charging
  • Integrated intelligent power management system
  • Intelligently detects input power
  • Intelligently distributes charging power
  • Priority Mode offers either battery or USB charging
  • Enables data transfer via USB
  • Features optimized charging program for IMR batteries
  • Intelligently selects charging current based on battery capacity
  • Features rear USB cable winder
  • Constructed from fire retardant materials
  • Features reverse polarity protection
  • Designed for optimal heat dissipation
  • Certified by RoHS, CE, FCC and CEC
  • Insured worldwide by Ping An Insurance (Group) Company of China, Ltd.


  • Input voltage: Micro USB DC 5V
  • Output voltage: 4.2V±1%/5V
  • Output current: 1000mA/500mA
  • Compatible with: Li-ion/IMR: 18650, 18490, 18350, 17670, 17500, 16340 (RCR123A), 14500, 10440
  • Dimensions: 100mmx56mmx35mm
  • Weight: 77.2g (without batteries or power cord)

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