Nitecore UM2 Dual Cell USB Battery Charger

  • $39.00
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The NITECORE UM2 Charger is a dual slot battery charger that is capable of charging two batteries simultaneously. Individual slots can be controlled separately if warranted.


An LCD screen is featured, which displays real-time information on voltage, current, charging volume and charge time. The user can enable automatic detection of battery power level and automatically selects charging mode (CV, CC & -dV/dt). Furthermore, the charge settings can be set manually to meet your individual needs.


The Nitecore UM2 charger is compatible with 3.6V/3.7V Li-ion rechargeable batteries, 3.8V Li-ion rechargeable batteries, 1.2V Ni-MH/Ni-Cd rechargeable batteries & 3.2V LiFePO4 batteries.


Several safety precautions ensure the safety of your charging process. These include but are not limited to anti-short circuit, overtime protection, reverse polarity protection, over-discharge & over-discharge IMR battery restoration protection.


  • Intelligent USB Dual-Slot Charger
  • QC 2.0 Input available
  • Capable of charging 2 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
  • 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 circuit protection
  • 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
  • Certifed by RoHS, CE, FCC, and CEC


  • Input - DC 5V/2A 9V/2A 18W (Max)
  • Output - 4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%
  • QC Mode - 1,500mA x 2 (MAX)
  • Standard Mode - 1,000mA x 2 (MAX)
  • Compatible Batteries:
    • IMR/Li-ion/LiFePO4: 10440, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 25500, 22650, 25500, 26500, 26650, 26700
    • Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D
  • Dimensions - 152mm x 73mm x 40mm
  • Weight - 148.3g


1 x USB cable
1 x Manual
1 x UM2 Charger

Customer Reviews

Based on 2 reviews
kevin jarvis

Nitecore UM2 Dual Cell USB Battery Charger

Ross Sayers
Nitecore UM2 Dual Cell USB Battery Charger

The perfect battery charger for most of the new applications on the modern market . It is very intelligent and does what it designed to do .