Nitecore UM4 Intelligent 4-slot battery USB smart charger

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131109
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product overview
product overview
  • Made From Durable And Fire-Retardant PC Material
  • QC 2.0 Input Available
  • Capable Of Charging 4 Batteries Simultaneously And Controlling Each Slot Independently
  • Up To 1500mA 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
  • Intelligent USB Four-Slot Charger

The Nitecore UM4 4-Slot Intelligent USB Battery Charger is a fast and efficient USB charger that can charge up to four batteries with the option to control each bay independently. The charger has a maximum output of 1500mA in a single slot.

The Nitecore UM4 charger is fast and efficient. A USB charger that can charge up to four batteries with the option to control each bay independently. The charger has a maximum output of 1500mA in a single slot - please note, this is only achievable if using a 9V 2A QC 2.0 charging adapter.

The charger will automatically select from 3 charging modes when the battery is inserted, according to the battery type and capacity. Alternatively, the charging parameters can be set manually to meet various charging needs; long-press the 'C' button to enter the charging setting mode. 

Note: This is only achievable if using a 9V 2A QC 2.0 charging adapter.


Key Features of the Nitecore UM4 4-Slot Intelligent USB Battery Charger

  • Capable of charging 4 batteries simultaneously and controlling each slot independently
  • Energy-efficient LCD for real-time charging information
  • Capable of manually selecting the charging cut-off voltage and the charging current
  • Automatic termination of large/small capacity batteries and automatic selection of appropriate 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
  • Optimal heat dissipation design

The charger features a charging programme specially optimised for IMR batteries

Which monitors the entire charging process, ensuring that the cut-off voltage is always within safe limits to extend the lifespan of the battery.

The Nitecore UM4 has a useful LCD which relays real-time charging information.

A short press on the 'V' button will cycle through details on the charged volume and charging time, charging current and battery voltage, battery type, cut-off voltage and charging mode.

The charger offers over-discharged IMR battery restoration.

When an over-discharged IMR battery is inserted, the screen will show 'EE EE'; simply long-press the 'V' button to enter restoration mode. The screen will also display 'EE EE' if a short-circuited battery is inserted or the cell is the wrong way round. 

The Nitecore UM4 is compatible with

The following IMR, Li-ion, LiFePO4 batteries and the following NiMH and NiCd

Nitecore UM4 4-Slot Intelligent USB Battery Charger Compatibility

The Nitecore UM4 4-Slot Intelligent USB Battery Charger is compatible with a range of batteries such as the IMR, LI-ION and LiFePO4. For a list of compatible products


  • MPN - UM4
  • GTIN - 6952506492794
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Input DC 5V/2A 9V/2A
18W (MAX)
Output Voltage 4.35V1%
4.2V1%
3.7V1%
1.48V1%
Output Current QC Mode:
1,500mA (MAX)
1,500mA x2 (MAX)
750mA x4 (MAX)
Standard Mode: 1,500mA(MAX)
1,000mA x2 (MAX)
500mA x4 (MAX)
Certified by RoHS
CE
FCC
CEC
Made from Durable and fire-retardant PC materials
3 Charging modes CC
CV
-dV/dt
Compatible with Li-ion
Ni-MH
Ni-Cd
Ni-MH
Ni-Cd

Nitecore UM4 4-Slot Intelligent USB Battery Charger Compatibility

IMR
LI-ION
LiFePO4
10440
14500
14650
6500
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
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What’s In The Box
  • Nitecore UM4 4-Slot Intelligent USB Battery Charger
  • Standard Power Cord
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