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Nitecore UMS4 Intelligent USB Four-Slot Superb Charger for Li-ion, Ni-Cd, and Ni-MH

Nitecore UMS4 Charger Front view
Nitecore UMS4 Charger laying flat at an angle to see the channels
Nitecore UMS4 Charger Box contents - includes charger and cord
Nitecore UMS4 Charger with batteries inserted - batteries not included just showing how many different sizes can fit at once
Nitecore UMS4 Charger retail box
Nitecore UMS4 Charger manufacturer feature slide
Nitecore UMS4 Charger manufacturer max output of 4000mA slide
Nitecore UMS4 Charger manufacturer slide about fast charging
Nitecore UMS4 Charger manufacturer slide stating the charging mode specifically for IMR batteries
Nitecore UMS4 Charger manufacturer slide describing the benefits of an LCD screen
Nitecore UMS4 Charger manufacturer slide describing internal resistance and battery health detection modes
Nitecore UMS4 Charger alternate view 10
Nitecore UMS4 Charger alternate view 11
Nitecore UMS4 Charger alternate view 12
Nitecore UMS4 Charger alternate view 13
Nitecore UMS4 Charger alternate view 14
Nitecore UMS4 Charger alternate view 15
Nitecore UMS4 Charger alternate view 16
Nitecore UMS4 Charger alternate view 17
Nitecore UMS4 Charger alternate view 18
Nitecore UMS4 Charger Front view
Nitecore UMS4 Charger laying flat at an angle to see the channels
Nitecore UMS4 Charger Box contents - includes charger and cord
Nitecore UMS4 Charger with batteries inserted - batteries not included just showing how many different sizes can fit at once
Nitecore UMS4 Charger retail box
Nitecore UMS4 Charger manufacturer feature slide
Nitecore UMS4 Charger manufacturer max output of 4000mA slide
Nitecore UMS4 Charger manufacturer slide about fast charging
Nitecore UMS4 Charger manufacturer slide stating the charging mode specifically for IMR batteries
Nitecore UMS4 Charger manufacturer slide describing the benefits of an LCD screen
Nitecore UMS4 Charger manufacturer slide describing internal resistance and battery health detection modes
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Description

Nitecore UMS4 Intelligent USB Four-Slot Superb Charger

Smart Charging At Its Best

The Nitecore UMS4 Charger is a four-slot smart charger with intuitive features and intelligent charging programs. The QC input of the UMS4 allows for a maximum output of 4,000mA which will quickly recharge your batteries with efficiency and with minimal discharge. If you're only using a single slot, thats no problem, the single slot maximum output of Nitecore UMS4 Charger is 3,000mA which will charge 80 percent of a 3,500mAh battery in 55 minutes, giving you plenty of time to charge up for your next use. Other smart features of this device is the Internal Resistance and Battery Health Detection which will alert you to the state of your battery. The UMS4 also provides real-time charging information, such as battery voltage, charging current and duration, so you can monitor the status of your battery.

Temperature Conscious

The Nitecore UMS4 Charger is designed to prevent overheating of both your batteries and the charger itself. With a built-in fin design at the edges of the charger, the UMS4 is able to bring a cooling performance that will disperse heat rapidly. Plus, the UMS4 has intelligent temperature regulation that prevents the charger from overheating and will ensure a stable charging process. These features, combined with the durable and fire retardant materials that make up the UMS4, will protect you and your batteries from danger. Not to mention that the energy saving function, which is when the charger dims after 3 minutes of inactivity, will ensure that the UMS4 is always ready to use and won't waste any charge of its own.

Features:
  • Intelligent USB Four-Slot Superb Charger
  • QC 2.0 Input available
  • Capable of charging 4 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/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 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


Specifications:
  • Input - DC 5V/2A 12V/1.5A
  • Output - 4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%
  • QC Mode - 3,000mA*1 (MAX), 2,000mA*2 (MAX), 1,000mA*4 (MAX)
  • Standard Mode - 2,000mA*1 (MAX), 1,000mA*2 (MAX), 500mA*4 (MAX)
  • Compatible With:
    • 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, 26500, 26650, 26700
    • Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D
  • Dimensions - 6.26" x 4.21" x 1.61" (159mm x 107mm x 41mm)
  • Weight - 9.01oz (255.4g)
Specifications
Charge Channels:4
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
Brand:Nitecore
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Product Weight:9.01oz
Product Dimensions:6.26" (L) x 4.21" (W) x 1.61" (H)
UPC:6952506492824
MPN:UMS4
Country of Origin:China
Downloads
Reviews
4.1
7 Reviews
5
57% (4)
4
14% (1)
3
14% (1)
2
14% (1)
1
0% (0)
By Christopher
Texas
Great Base charger
September 28, 2022
Really like the display readout
By Edward
Fairmont, MN
some issues w/ USM4
September 3, 2022
I use a USM4 version [2000mA] almost daily for NI-MH AA and AAA, mostly for lights. Batteries pop into slots #1-3 easily but not slot #4 - tricky to make the connection by cocking battery at a slight angle. Resistance value doesn't make sense to me as it may or may not change [usually decreases but sometimes not] during or after charging. I now step down the power on AA & AAA as the [intelligent] setting can "cook" some batteries and get them too hot to hold in your hand. Any battery discharged below .9V triggers an error message and charging will not proceed [I use my older [dumb] D2 to kick it up past .9V]. Other than those annoying glitches, this is a workhorse as I sometimes need all four slots at once.
By Glen
Nightcore UMS4
August 30, 2022
Information on screen can be hard to understand on some functions but that could just be me nobody ever accuse me of being a brain
By Jack
Colorado
21700 and more
August 18, 2022
Perfect fit for 21700s 18650s, etc.
By at25526
WV
Nitecore UMS4 Intelligent USB Four-Slot Charger
May 11, 2022
great 4 bay charger to accomodate newer (bigger) sized batteries. 26650 and 21700 easily fit, as well as the "older-sized' batteries like CR123. Smart enough to charge Ni-MH 1.2v rechargeables too.
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Nitecore UMS4 Intelligent USB Four-Slot Superb Charger for Li-ion, Ni-Cd, and Ni-MH

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