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Nitecore UM2 Intelligent USB Charger – Multi – Li-ion, LiFePO4, Ni-MH, Ni-Cd Charger

Nitecore UM2 Intelligent USB Charger – Multi – Li-ion, LiFePO4, Ni-MH, Ni-Cd Charger


The World’s Most Advanced Fully-Automatic USB Digital Multi Charger.

It’s as simple as insert, detect and charge.

Charge different battery types Li-ion,Ni-MH, Ni-Cd 26700, 26650, 26500, 25500, 22650, 22500, 21700, 20700, 18700, 18650, 18500, 18490, 18350,  17700, 17670, 17650, 17500, 17350, 16650, 16500, 16340 (RCR123), 14650, 14500, 10440, AA, AAA, AAAA, C

If Out Of Stock Then Please CLICK HERE For Current Price & Availability



Product Description

Nitecore UM2 Intelligent USB Charger – Multi – Li-ion, LiFePO4, Ni-MH, Ni-Cd Charger


The Nitecore UM2 is a universal smart charger compatible with almost all cylindrical rechargeable batteries, thus eliminating the need to own several chargers.
The UM2 automatically detects Li-ion, Ni-MH and Ni-Cd batteries, and through manual selection is also capable of charging LiFePO4 batteries.
Intelligent charging circuitry selects the optimal charging mode (CC, CV and dV/dt) for a given battery and each of the UM2’s two microcomputer-controlled charging slots then monitors and charges the battery independently.
Furthermore, an integrated digital LCD screen clearly displays charging progress, voltage, current and time while an intelligent automatic power-off function terminates current when charging is complete.

The new NITECORE UM2 is a QC input available, Intelligent USB dual-slot charger, with a total max output of 3,000 mA and a single slot max output of 1,500 mA and is capable of charging 2 batteries simultaneously and controlling each slot independently.
It only takes 2 hours to charge 80% of a 3,500mAh battery.
The LCD screen can display a real-time information of Charging Current, Battery Voltage, Charged Volume and Charging time.
It can enable an automatic detection of battery power level and automatic selection of the appropriate voltage and charging mode and automatic selection between 3 charging modes (CC, CV and -dV/dt).
The charging parameters can be set manually as well to meet various charging needs.
The specially designed Micro USB port is compatible with various Mobile Power Source, Solar Panel, Powerbanks and USB Adaptors to ensure endless power supply.
UM2 incorporates an optimized IMR battery charging program, which is able to monitor the entire charging process, ensuring that the cut-off voltage is always within safe limits to extend the lifespan of the batteries.
The UM2 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 and 3.2V LiFePO4 batteries.

Multiple safeguards ensure the safe charging process, including anti-short circuiting and reverse polarity protection, overtime charging protection, over-discharged Li-ion battery activation and over-discharged IMR battery restoration.
Apart from being constructed from durable and fire retardant PC materials, the built-in temperature regulation system is designed to prevent the overheat and to ensure the stability of the charging process.
If there is no action to the buttons or batteries in 10 minutes, the screen will automatically go dim to save energy.


  • Intelligent USB Dual-Slot Charger
  • Charge 2 Different Battery Sizes or Chemistry at once!
  • Capable of charging 2 batteries simultaneously and controlling each slot independently
  • Intelligent charging mode selection
  • Capable of manually selecting the charging cut-off voltage and the charging current
  • Can Manually Set Charging Parameters
  • Automatic detection of large / small capacity batteries and automatic selection of appropriate charging current
  • Automatic detection of battery power level and automatic selection of the appropriate voltage and charging mode
  • Automatic Detection of Battery Chemistry (Lithium Ion, Ni-MH, Ni-CD)
  • Automatic Detection of Battery Voltage and mAh
  • Automatic termination upon charging circuit protection
  • Automatic selection between 3 charging modes (CC, CV, and -dV/dt
  • Features 3 charging modes
    * – Constant Charge Current (CC),
    * – Constant Charge Voltage (CV),
    * – Trickle Charge
  • Up to 1,500mA charging speed in a single slot
  • Total max output of 3000 mA with single slot max output of 1500 mA
  • Energy saving function
  • Energy-efficient LCD display for real-time charging information
  • USB charging port for outdoor charging
  • QC 2.0 Input available
  • 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
  • Compatible with Li-ion and Ni-MH /Ni-Cd batteries with automated detection


The Nitecore UM2:
The world’s most advanced fully-automatic digital USB charger.
It’s as simple as insert, detect and charge.

The all-new highly advanced smart charger.
It’s as simple as insert, detect, and charge.


  • 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*2 (MAX)
  • Standard Mode – 1,000mA*2 (MAX)
  • Compatible With:
    ◦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 – 5.98″ x 2.87″ x 1.57″ (152mm x 73mm x 40mm)
  • Weight – 5.23oz (148.3g)


Nitecore UM2 User Manual CLICK HERE


  • AAA
  • AA
  • C
  • D
  • 10440
  • 14500
  • 14650
  • 16340
  • RCR123
  • C123 (A)
  • CR2
  • 16500
  • 16650
  • 17335
  • 17350
  • 17500
  • 17650
  • 17670
  • 17700
  • 18350
  • 18490
  • 18500
  • 18650
  • 18700
  • 20700
  • 21700
  • 22500
  • 22650
  • 25500
  • 26500
  • 26650
  • 26700



What if you can power batteries of all sizes and chemistries with just ONE charger?
What if this charger takes very little time to fully charge a battery?
What if this charger can intelligently protect batteries and avoid improper charging?

We make all those real. Nitecore is the world’s fastest-growing specialist of smart charger. Our products are designed to accommodate pro-level users in different trades and fields. We aim to create the fully automatic charger series with the fastest charging way, the most intelligent checking functions, the highest level of compatibility and safety in use. They are so smart that you can leave the batteries unattended during the entire charging process.

Our products have been sold to more than 100 countries and regions across the globe through our international distribution network. Because they agree our design principles: it must be efficient, versatile, easy-to-use, safe and durable. We want to create something make you “wow”.

We have accumulated years of experience of innovations, researches and testing, and have employed cutting-edge technologies into the making of our chargers and batteries.
Our intelligent and ultra-compatible charger collection provides automatically adaptive charging system for batteries of various chemistries and different sizes, including Li-ion, Ni-MH, Ni-Cd and LiFePO4. The USB charging system provides a flexible refilling solution of smartphones and tablet PCs. The batteries in the collection make sure that you have enough backup power to keep working for extended hours without discontinuation.

These state-of-art smart chargers and batteries are just warm-up. Our goal is to provide an all-in-one solution for all of your devices. Whatever you would like to charge come in mind, just go for Nitecore.


Li-ion / Lithium-Ion
– LiFePO4
– Ni-MH
– Ni-Cd

SIZES; – 26700, 26650, 26500, 25500, 22650, 22500, 21700, 20700, 18700, 18650, 18500, 18490, 18350,  17700, 17670, 17650, 17500, 17350, 16650, 16500, 16340 (RCR123), 14650, 14500, 10440, AA, AAA, AAAA, C

For Rechargeable BatteriesCLICK HERE

## Manufacturers Nitecore Code ## UM2 ##
Distributor Warranties Apply on All ‘New’ Product, Unless Stated Otherwise.


Yes, we ship our products worldwide, (except Prohibited Items). For order requests outside New Zealand please send an export enquiry request
(CLICK HERE) so we can quote you, along with options for shipping.

NOTE; Importation requirements – Laws vary for every country, it is YOUR RESPONSIBILITY to ensure that you can LEGALLY import the said product you want to order. Also, each specific country we export to have their own customs duties, customs vat / tax etc., and applicable additional freight and clearing charges. Please enquire with your local customs department to verify tariff heading, tariff codes, and possible import duties charges etc., that you may incur.

CRAFTYS accepts NO RESPONSIBILTY for Legality or Additional Charges for your Importation.


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