Charge your batteries smarter, faster, and safer with the UMS2.
Intelligent USB-C Dual-Slot Charger
- Fast Charging: Up to 3,000mA per slot with QC 2.0.
- Smart Detection: Automatically adjusts for IMR, Li-ion, Ni-MH, and more.
- Real-Time LCD: See charging status, battery health, and more at a glance.
- Safe and Reliable: Overcharge, short circuit, and temperature protection.
- Compact & Travel-Friendly: Lightweight design for on-the-go charging.
Effortless charging. Every time.
Charge Faster, Be Ready Sooner - Speed changes everything. The Nitecore UMS2 charges your batteries up to 80% in just 55 minutes, thanks to its advanced Quick Charge 2.0 technology. With a powerful 3,000mA output per slot, it’s built for those who don’t have time to wait. Whether you’re recharging for an outdoor adventure or powering up for your next project, the UMS2 gets you back to what matters—fast.
See Everything, Control Everything - Charging has never been this smart. The UMS2’s intelligent LCD display gives you real-time insights at a glance. Monitor your battery’s health, voltage, internal resistance, and more. Need to customize the charge? Take control with manual adjustments for current and cutoff voltage. It’s all the information and precision you need, right at your fingertips.
One Charger, Every Battery - From everyday AA batteries to powerful Li-ion cells, the UMS2 charges them all. It works seamlessly with an array of battery types and sizes, adapting effortlessly to your gear. Flashlights, cameras, tools—if it’s rechargeable, the UMS2 powers it. Simplify your setup with one charger that truly does it all.
Fast. Smart. Universal.
Safe Charging, Every Time - Power should never come at the cost of safety. That’s why the UMS2 is built with advanced protections to keep your batteries—and you—safe. Overcharge? Prevented. Short circuits? Handled. Even over-discharged batteries can be revived, giving them a second life. The UMS2 ensures every charge is safe, stable, and worry-free.
Built for Everywhere You Go - AThe UMS2 is as durable as it is portable. Crafted from fire-retardant PC material, it’s made to last. Its lightweight, compact design makes it easy to carry, whether you’re heading to the office or out into the field. Wherever you need power, the UMS2 delivers.
Compatible Batteries
| TYPE | MODEL | WORKS? |
| 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 | Yes |
| Ni-MH/Ni-Cd | AA, AAA, AAAA, C, D | Yes |
*RECOMMENDED CABLE
Make sure you get a USB-C cable that can support up to 18W charging speeds.TECHNICAL SPECS
| Input | DC 5V/2A 9V/2A 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) Standard Mode: 2,000mA*1 (MAX) 1,000mA*2 (MAX) |
| Dimensions | 152mm x 73mm x 40mm (5.98"x2.87"x1.57") |
| Weight | 157.7g (5.56 oz) (Charging cable not included) |
| Download Instruction Manual (PDF) | |
What's In The Box
- 1x UMS2 Charger
- 1x USB-C Cable
Our 60-Day Ironclad Guarantee
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We believe in this product so strongly that we're giving you a 60 days money back guarantee!
If you're not 100% satisfied with your purchase, ship the entire package back to us with your Order #number and we'll give you a full refund!
What happens after payment?
- You'll receive a purchase receipt via email after payment.
- Your order will be processed within the next working day and we'll email you a tracking number once your package has been shipped.
When will I receive my lights?
- Local shipping will take 4-6 working days to your door via courier.
- International shipping will take 10-14 working days.
Returns and warranty
- If our lights don't work the way they should, let us know and we'll do our best to get you sorted. 1~3 year replacement warranty.
Do you know that we can deliver same day, and have a large selection of lights for every need?
If you can't find what you are looking for, or need them on a specific date, do reach out to our team and we would be happy to assist you!