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Nitecore UMS2 Intelligent USB Dual-Slot Superb Charger for Li-ion, Ni-Cd, and Ni-MH

Front view of Nitecore UMS2 battery charger
Front view of Nitecore UMS2 battery charger
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Nitecore UMS2 Intelligent USB Dual-Slot Superb Charger

Maximum Power and Performance

The Nitecore UMS2 Charger is a smart battery charger that will quickly and easily bring your batteries back up to performance standard. With a maximum output of 4,000mA, the UMS2 will efficiently charge your batteries in a quick manner, with a single slot being able to charge batteries back up to 80 percent in 55 minutes. Plus, with its intuitive charging capabilities and equipped LCD display, the UMS2 will alert you to any and all aspects of your battery. The Internal Resistance and Battery Health Detection will alert you to the internal resistance of that battery as well as its current condition. This feature will allow you to determine how useful these batteries will be and will enable you to make precise decisions about the longevity and lifespan of your rechargeable batteries.

Intuitive Design

The Nitecore UMS2 Charger features an intuitive and simple design that will prevent any harm from succumbing to your batteries. The UMS2 features an energy saving function that if there is no activity with the buttons or batteries within 10 minutes, the LCD screen will dim to save energy. Not to mention, that the design of the USM2 utilizes intelligent temperature regulation that will prevent the charger from overheating and ensure stable charging. The fin designs on the Nitecore UMS2 Charger will provide an enhanced cooling performance to disspate heat at a fast rate and avoid possible hazards, so you will never have to worry about your batteries or the state of your UMS2.

  • Intelligent USB Dual-Slot Superb Charger
  • QC 2.0 input available
  • Capable of charging 2 batteries simultaneously and controlling each slot independently
  • Up to 3,000mA 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 appropirate 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
  • Automatic detection of battery internal resistance and display of battery health
  • Made from durable and fire-retardant PC materials
  • Optimal heat dissipation design
  • Certified by RoHS, CE, FCC, and CEC

  • Input - 5V/2A 9V/2A 18W (Max)
  • Output - 4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%
  • QC Mode - 3,000mA*1 (MAX), 2,000mA*2 (MAX)
  • Standard Mode - 2,000mA*1 (MAX), 1,000mA*2 (MAX)
  • Compatible With:
    • IMR/Li-ion/LiFePO4: 10440, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18500, 18650, 18700, 20700, 21700, 22500, 26500, 26650, 26700
    • Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D
  • Dimensions - 5.98" x 2.87" x 1.57" (152mm x 73mm x 40mm)
  • Weight - 5.56oz (157.7g)
Charge Channels:2
Supported Chemistries:IMR, Li-Ion, LiFePO4, Ni-Cd, Ni-MH
Compatible Battery Sizes:10440, 14500, 14650, 16340 / RCR123A, 16500, 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 25500, 26500, 26650, 26700, AA, AAA, AAAA, C, D
Charge Current:4000mA
Batteries Included:No
Product Certifications:CE, CEC, FCC, RoHS
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Product Weight:5.56oz
Product Dimensions:5.98" (L) x 2.87" (W) x 1.57" (H)
Country of Origin:China
4 Reviews
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By Steve
Montvale, VA
Awesome Charger from Nitecore!
March 31, 2021
I needed a charger for 21700 Batteries and this one Does the Job Perfectly! Nice Display and compatible with Many Batteries!
By Dale
Long Beach, Mississippi
Quality Charger
January 26, 2021
This is the first multi capable battery charger I have ever used. It is very simple to use and the display provides useful data. If you need a charger capable of charging a variety of batteries without the need to change any settings, this is your charger.
By Steve
Chesterfield, MO
Nitecore charger
May 15, 2020
Used for 21700 batteries. Worked as expected.
By Joe
High speed
June 11, 2019
I purchased the UMS2 and the UM2. I like both chargers. The displays are very useful and display accurate information. I definitely prefer the UMS2 for the added charge speed when charging individual cells. Some prefer a slow charge, which these can be programmed to do. Quality charger at a low cost
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Nitecore UMS2 Intelligent USB Dual-Slot Superb Charger for Li-ion, Ni-Cd, and Ni-MH

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