The Nitecore UM2 Charger is an intelligent USB Quick Charger for IMR batteries with 2-slots and a 3000mA max output current. It charges 2 Li-ion batteries independently and is up to 1000mA in a single slot. The Nitecore UM2 will automatically detect your battery's charge level and provide appropriate voltage and charging time to ensure the safety and longevity of battery life. Together with a LCD display and unique cooling fin design, the Nitecore UM2 is a necessity in making sure your rechargeable batteries last.
The Nitecore UM2 Charger is an intelligent USB Quick Charger for IMR batteries with 2-slots and a 3000mA max output current. It charges 2 Li-ion batteries independently and is up to 1000mA in a single slot. The Nitecore UM2 will automatically detect your battery's charge level and provide appropriate voltage and charging time to ensure the safety and longevity of battery life. Together with a LCD display and unique cooling fin design, the Nitecore UM2 is a necessity in making sure your rechargeable batteries last.
There are no live offers for Nitecore UM2 Intelligent 2-Slot Battery USB Smart Charger right now. The all-time low we recorded was $15.69 on 21 Dec 2025. Set a price alert to hear when it's back in stock.
Prices last updated 8 Sept 2026.
Nitecore UM2 Intelligent 2-Slot Battery USB Smart Charger
The Nitecore UM2 Charger is an intelligent USB Quick Charger for IMR batteries with 2-slots and a 3000mA max output current. It charges 2 Li-ion batteries independently and is up to 1000mA in a single slot. The Nitecore UM2 will automatically detect your battery's charge level and provide appropriate voltage and charging time to ensure the safety and longevity of battery life. Together with a LCD display and unique cooling fin design, the Nitecore UM2 is a necessity in making sure your rechargeable batteries last.
The Nitecore UM2 Charger is an intelligent USB Quick Charger for IMR batteries with 2-slots and a 3000mA max output current. It charges 2 Li-ion batteries independently and is up to 1000mA in a single slot. The Nitecore UM2 will automatically detect your battery's charge level and provide appropriate voltage and charging time to ensure the safety and longevity of battery life. Together with a LCD display and unique cooling fin design, the Nitecore UM2 is a necessity in making sure your rechargeable batteries last.
Last updated at 09/08/2026 22:02:32
Nitecore UM2 USB Universal 2-Port Smart Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 26650 22650 21700 20700 18650 18490 18350 17670 17500 17335 16340 RCR123
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Nitecore UM2 Dual-Slot USB Battery Charger for 18650, 18490, 18350, 17670, 17500, 16340(RCR123), 14500, 10440
Delivery between 10–21 Sept $9.70
Nitecore UM2 2 X Penlite Charger (AA/AAA) w/ Indicator
Delivery $72.48
Nitecore UM2 Intelligent 2-slot battery USB smart charger
Delivery between Fri – Tue $10
Original Nitecore UM2 USB Battery Charger QC with 3-Pin Adapter Intelligent Charger
Nitecore UM2 Intelligent USB Dual-Slot Charger
Delivery $22.40
Nitecore UM2 Intelligent 2-Slot USB Battery Charger with LCD, 3000mA QC Output
Delivery between 15–18 Sept $8.95
Nitecore UM2 Dual Cell USB Battery Charger
Free delivery between 14–22 Sept
Nitecore Um2 Intelligent 2-slot Battery Usb Smart Charger
Delivery $9.95
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Nitecore UM2 Intelligent 2-slot battery USB smart charger
Delivery between Thu – Tue $9.95
originally posted on imrbatteries.com
I use this one at work. Have only used it a couple times, but it comes in really handy when I need a couple of batteries charged quickly. Was a little sceptical at first because I didnt realize that it used a USB power supply and does not plug I to 110 vac, but i have a few USB chargers that are a higher wattage and use them for these chargers, and they get the job done in a reasonable amount of time.
originally posted on imrbatteries.com
I needed a charger that actually stated that it would handle 70mm tall batteries. I have used some in the past that said that but they damaged the batteries physically from putting them in to charge. This one is great though. It has more than enough room for those batteries and it does a great job.
originally posted on imrbatteries.com
Fantastic charger. The LCD display is perfect for checking battery status at a quick glance. IMR has great selections and even better prices. This Nitecore charger bank works great. Try to find a 3A USB wall adapter to take advantage of the quick charge feature as well.
| Target platform | Battery chargers |
| Compositions | Plastic |
| Amperage | 2A |
| Voltage | 5V |
| Color characteristics | Black |
Nitecore UM2 USB Universal 2-Port Smart Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 26650 22650 21700 20700 18650 18490 18350 17670 17500 17335 16340 RCR123
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Nitecore UM2 Dual-Slot USB Battery Charger for 18650, 18490, 18350, 17670, 17500, 16340(RCR123), 14500, 10440
Delivery between 10–21 Sept $9.70
Nitecore UM2 2 X Penlite Charger (AA/AAA) w/ Indicator
Delivery $72.48
Nitecore UM2 Intelligent 2-slot battery USB smart charger
Delivery between Fri – Tue $10
Original Nitecore UM2 USB Battery Charger QC with 3-Pin Adapter Intelligent Charger
I use this one at work. Have only used it a couple times, but it comes in really handy when I need a couple of batteries charged quickly. Was a little sceptical at first because I didnt realize that it used a USB power supply and does not plug I to 110 vac, but i have a few USB chargers that are a higher wattage and use them for these chargers, and they get the job done in a reasonable amount of time.
I needed a charger that actually stated that it would handle 70mm tall batteries. I have used some in the past that said that but they damaged the batteries physically from putting them in to charge. This one is great though. It has more than enough room for those batteries and it does a great job.
Fantastic charger. The LCD display is perfect for checking battery status at a quick glance. IMR has great selections and even better prices. This Nitecore charger bank works great. Try to find a 3A USB wall adapter to take advantage of the quick charge feature as well.
This Nitecore UM2 may take a while to charge larger batteries but at IMR's bulk price it is pretty convenient to have multiple chargers and fully charged batteries ready to go. I bought this charger specifically because it fits the new 21700 button top battery and the list of batteries compatible with this charger is very long. Chargers were at my door two days after placing my order using the least expensive shipping option. Chargers were new in standard Nitecore packaging and well packed for shipping. Great product, great price, great service. By the way, Nitecore's New P30 flashlight throws one heck of a beam on a single 21700 or 18650.
You put a discharged battery in it and a couple of hours later it's charged up. What else can I say? . . It's nice to have an LED screen with charging and battery status info but, now that I've charged a couple of dozen batteries with it, I can't figure out what the info is useful for.
I have a good charger, but it won't charge the 21700 batteries for my Armour Pro, so I bought one that would. Unlike my other one, not only will this one charge the li-on batteries for my vape rigs, it will also charge AA & AAA rechargeable batteries.I do wish it had included a wall adapter for the USB charger, but that's a minor thing.
Bought the double battery charger and it works perfectly. It charges LI-ION and NMHD batteries at same time. Plan on using with solar panel during hurricane season.
lots of ways to charge, discharge, monitor etc. if you don't want to do all those things, just pop one or two LiOns in and pick them up in a couple of hours fully charged and ready to go. I have not used all of the features yet, like bring back from dead and deep cycle, but I know that when I need it, this little (inexpensive) contraption will have my back.
| Target platform | Battery chargers |
| Compositions | Plastic |
| Amperage | 2A |
| Voltage | 5V |
| Color characteristics | Black |
