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  • See the Nitecore UM4 USB Battery Charger. This smart four-slot charger can charge 4 batteries simultaneously with control for each individual slot, independently. It features automatic detection of battery power levels and can automatically select the best voltage and charge mode.


    It has 3 different charging modes (CV, CC and -dV/dt). The charging parameters can be set to manual mode, so you can select and meet your own charging preferences.


    The UM4 charger is simple to use.


    It 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.


    Numerous safety precautions are included to ensure safety. Some of these include automatic battery internal resistance detection, reverse polarity protection, anti-short circuit protection and over-time charge protection.



    Capacity: Four Slots (4 Battery Bays)

    Intelligent, Adaptable & Smart Technologies Inbuilt

    Charging Speed: 1500mA (In A Single Slot)

    Input: DC 5V / 2A V / 2A 18W (Max)

    Output: 4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%

    QC Mode: 1500mA*1 (Max), 1500mA*2 (Max), 750mA*4 (Max)

    Standard Mode: 1000mA*1 (Max), 1000mA*2 (Max), 500mA*4 (Max)

    QC 2.0 Input Available

    Can Charge 4 Batteries Simultaneously
    Can Control Each Battery Slot Independently

    Compatible Battery Types: Li-ion & NiMH/Ni-Cd Batteries

    Automatic Detection Of Battery Power Levels

    Automatic Selection Of Best Voltage And Charge Mode

    Automated Selection Between 3 Charge Modes (CV, CC & -dV/dt)

    LCD Display (Real Time Charging Information)
    Energy Efficient

    Capable Of Manual Selection Of Charge Cut-Off Voltage & Charge Current

    Automatic Detection Of Small / Large Capacity Batteries & Automatic Selection Of Best Charging Current

    Automatic Termination When Charging Is Complete

    Reverse Polarity Protection
    Short-Circuit Protection

    Over-Time Charging Protection

    Over-Discharged Battery Activation

    Li-ion Battery Restoration

    Automatic Detection Of Battery Internal Resistance And Displays Battery Health

    Construction Materials: Durable & Fire-Retardant PC Materials

    Optimised Heat Dissipation Design

    Weight: 255.4g

    Dimensions: 6.26" x 4.21" x 1.61"


    Compatible Batteries:


    IMR / Li-ion / LiFePO4:

    10440, 14500, 14650, 16500, 16340(RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 25500, 26500, 26650 & 26700


    Ni-MH / Ni-Cd: AA, AAA, AAAA, C & D



    1 Nitecore UM4 Battery Charger

    1 USB Cable

    1 User Manual

    NITECORE UM4 Four Bay USB Battery Charger

    Only 2 left in stock
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