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Nitecore  |  SKU: CHG-NITE-UMS4

Nitecore UMS4 USB Four-Slot USB-C Fast Charger, for 18650, 21700 Batteries

$38.95
Shipping calculated at checkout.

Shipping Time

Usually ships within 24hrs

Description

Quick and Efficient Charging

Introducing the NITECORE UMS4 Intelligent USB-C multi-slot charger designed to recharge your batteries fast, safe and efficiently. The UMS4 will reach a maximum total output of 4000mA when using a 2A output USB-C power adapter. When the charger is powered or connected to quick charge (QC) power adapter, the screen will show “Quick Charge” and the single slot will achieve a max output of 3000mA.

LCD Display with Real-time Charging Information

A brightly lit LCD display reports real information including battery health, charging time, charged volume, charging current, battery voltage and type, cut-off voltage and charging mode. The UMS4 offers an energy saving function that activates and dims the LCD display in 10 minutes, when there is no action to the buttons or batteries.

Intelligent USB-C Charging

The UMS4’s intelligent charging technology automatically detects and applies the appropriate charging current/voltage while allows users to manually adjust the charging current/voltage for specialized battery types. The UMS4 supports various battery types (li-ion/imr/lifep04/ni-cd/ni-mh) and common battery sizes including (18650, 16340,14500).

Specifications
Input DC 5V/2A 12V/1.5A / 18W(MAX)
Output 4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%
Output Current QC Mode 3,000mA*1 (MAX) 2,000mA*2 (MAX) 1,000mA*4 (MAX)
Output Current Standard Mode 2,000mA*1 (MAX) 1,000mA*2 (MAX) 500mA*4 (MAX)
Compatible Battery Types: 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
Compatible Battery Types: Ni-MH/Ni-Cd AA, AAA, AAAA, C, D
Dimensions L-6.26"xW-4.21"xH-1.61"
Weight 9.01oz

Included in the Box
  • NITECORE USM4 Charger
  • USB charging cable

Select a Video:

Customers praised this four-slot fast charger for its informative display showing battery health, voltage, and charge status. "Works great at charging my 18650's and my 21700's," said shoppers. Fast charging and USB-C power were highlighted. However, some noted USB port detachment issues, inconsistent resistance readings, and overheating with Ni-MH batteries.

Charger (positive)Batteries (positive)Service (positive)Display (positive)Charging (positive)
  • 5 stars: 87 (86%)
  • 4 stars: 11 (11%)
  • 3 stars: 2 (2%)
  • 2 stars: 1 (1%)
  • 1 star: 0 (0%)
A
Anonymous
Charger is much superior than previous older style 21700 chargers

Charger is much superior than previous older style 21700 chargers. It provides great informational in-situ detail of battery health and state of charge.

C
Chris Z.
Nitecore USM4 charger

Aesthetically pleasing unit! Used it after receiving charger. Worked well.
Glad to have bought this instead of a different brand.

W
William

Works great at charging my 18650’s and my 21700’s

d
donald m.
It shipped quickly and is high quality

It shipped quickly and is high quality. Very happy with purchase.

D
Dwayne O.
Great charger for AA & AAA batteries as well.

This charger is the only one that can get rechargeable AA & AAA up to 1.5 volts.

W
William A.
Nitecore UMS4 is an outstanding lithium battery

Nitecore UMS4 is an outstanding lithium battery charger

D
David P.
Fast service

Fast service. Fixed my dead charger.

U
Ugh138
USB port Detaches

I've owned 3 of these and the USB charging port has become detached from the PCB on all of them and can no longer charge!!!

K
Keith B.
Great charger!

Seems solid, provides useful information most other chargers don’t, and has done a good job of automatically detecting the battery chemistry type.

My only RFE would be to report the actual measured internal resistance rather than a pass/fail (good/poor) indication.

R
RON L.
Excellent product

Excellent product, and service

N
N.P.

Works great but it does charge slower with four and gets a little warm if you put two it charges much faster

S
Stephen F.
It fits what I need to charge

It fits what I need to charge. It works well and easy to operate It does do all the charging I use are 18650 and 21700 with button and flat top batteries it also charge Nitecore 21700 6000 mah battery with button. It fits perfect. I am happy with UMS4 cell slot. Quality is excellent made

W
William W.
Very nice charger works

Very nice charger works good

R
Ray

Quick shipping and works great!

R
Russell S.
Bright display

Bright display. Charge is fast.

B
Brian

Very easy to use charger with easy to read display.

R
Robert R.
Fast charging.

Fast, convenient charging for 18650 and 21700 batteries.

J
Joe P.
Easy to use

Easy to use and it lets me know its charging status.

K
Kevin
A well designed piece of kit.

I like the way information about the charging is displayed.
I like the number of battery types that can be charged.
I like the usb c connector being used as the power source.
I like compact size o the charger.

L
Larry
Great quick charge

Great quick charge.

J
Joseph
bad. Arss charges

Theas charger are bad arss

D
Derek C.
Usb c

Upgrading to the usb c port was an excellent upgrade to a great charger, the previous models micro b port would get too flimsy, the new usb c feels much sturdier.

M
Mark J.
UMS4 USB CHARGER.

Excellent trouble free charger/works exactly as advertised!

N
Nicholas C.

Awesome

N
Nathan B.
Nice

Only had for two weeks but so far works great

P
Peter C.
Works great

Took me a while to understand how to charge my batteries directions either lacking or I just wasn’t understanding but once I got the hang of it it’s awesome fast charging and very good information on the display

M
Mike
Great charger but..

My only minor gripe is worth one star: it uses a micro usb cable. I would love the USB-C so I can finally get rid of these nuisance cables. Unfortunately their other charger that does use USB-C is not compatible with 21700 batteries. When/if they upgrade this charger to 2024 tech I'll be first in line to purchase. Fingers crossed and waiting.

N
Noah

Simple to use, charges fast. I like it

J
Joe A.B.
Awesome charger

My previous charger I have ( pink) a 4 slot by Nitecore still works. It only needs a new cord and it’s been about 4 years and still darn good. The new one is great tellsI love you if your batteries are in good shape, it also has quick charge which is a blessing in it self, and other pertinent things it tells you which I’ll have to study on.i love Nitecore products.
Oh, buy the charger. I use mine for my vape batteries.

A
Anonymous
Nitecore UMSS4 Four-Slot Charger

Great product.

R
Rdm21740
Awesome but needs updating

This is an awesome charger but it’s s time it needs to be updated to use a USB-C cable
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