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🔌 Charge smarter, faster, and safer — never miss a beat with NITECORE UMS2!
The NITECORE UMS2 is a cutting-edge intelligent dual-slot battery charger featuring a maximum 4000mA output, real-time LCD display for detailed battery diagnostics, and broad compatibility with multiple rechargeable battery chemistries and sizes. Designed for professionals and enthusiasts alike, it offers independent slot control, rapid charging (80% in 55 minutes for 3500mAh batteries), and comprehensive safety features including temperature regulation and reverse polarity protection. Its USB-C input supports versatile power sources, making it the ultimate portable charging solution.
| ASIN | B0C77KK1HN |
| Customer Reviews | 4.3 4.3 out of 5 stars (86) |
| Date First Available | June 6, 2023 |
| Item Weight | 9.6 ounces |
| Manufacturer | SYSMAX Innovations Co., Ltd. |
| Product Dimensions | 5.91 x 1.57 x 2.99 inches |
D**R
Great portable battery charger.
This will charge any rechargeable battery that will fit in the slot and if you are a geek it provides enough information while charging since i try not to fully charge my batteries. My main use for this charger is for the 21750 battery in the newer high performance flashlights.
M**O
Informative screen
Great stuff! One charger to charge them all
R**G
Excellent
Works great.
B**N
Used for the olight flashlight mini warrior 2
I am using this to charge my olight batteries,. perfect match!
D**.
Update: Noticeable High Pitch "Humming Sound" after A Month of Use
Not yet sure if this charger will be working as I expected. I purchased this charger since the description saying that I have the option to lower the charging speed at 100mA. Because of the 4-slot (UMS4) model "Lowest at 300mA", I had no other option and bought this. Good thing is the manufacturer promises "One Year Warranty". Will Update this review after a certain time of use. Update: I've noticed that there's continuous noticeable high pitch "Humming Sound" when charging. I researched & found it's because of the "Extended period of Use" such as "6 Yrs Later". I purchased it just a month ago - it's quite disappointing. Requested "Return" right away. Will try UMS4 paying $10 more. Hope that one is good & "Quiet".
J**B
Micro USB
Perfectly fine but would be better if it used USB C rather than micro USB.
G**.
excelente producto, carga super rapido y trae conexión USB C , recomendado
C**W
Workhorse. Plain and simple.
My last one lasted for 6 years, everyday..every single day. Until it started to hum. Upgraded and got the current model. So far, so good. I wondered if the usb-c cable would supply enough power..ya it does! Love it. 10/10 would recommend and totally buy again. Anything else is inferior in my opinion. But hey, that's just a theory...a CHARELSTON CHEW THEORY.
F**O
Llego muy bien! Sirve a la perfección, ya tengo varios de esta marca y no fallan! Vino con conexión usb-c
C**N
Funziona benissimo, ottima.
R**.
Works OK, but not really as well featured as the D2 I bought this charger to replace; not mains powered for starters and doesn't have an option to dim the display.
Y**E
Très bien
G**I
Con un buon caricatore si attiva la modalità quick charge che è anche modificabile (1500mA default) su batterie litio. Carica velocemente e in sicurezza. Attraverso la misura della resistenza interna segnala in quale condizione si trova la batteria. Ottima anche la carica di NI-MH con modalità Dv-Dt. Costa un po' ma li vale tutti
Trustpilot
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