--- product_id: 92483471 title: "Nitecore UMS2 Intelligent Dual-Slot Quick USB-C Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340 14500 18650 21700 20700 AA AAA and More Batteries, with Organizer" brand: "nitecore" price: "¥10041" currency: JPY in_stock: true reviews_count: 9 category: "Nitecore" url: https://www.desertcart.jp/products/92483471-nitecore-ums2-intelligent-dual-slot-quick-usb-c-battery-charger store_origin: JP region: Japan --- # 4000mA max dual-slot fast charge Real-time LCD battery health & status Supports Li-ion/Ni-MH/Ni-Cd/IMR batteries Nitecore UMS2 Intelligent Dual-Slot Quick USB-C Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340 14500 18650 21700 20700 AA AAA and More Batteries, with Organizer **Brand:** nitecore **Price:** ¥10041 **Availability:** ✅ In Stock ## Summary > 🔌 Power up smarter, faster, everywhere you go! ## Quick Answers - **What is this?** Nitecore UMS2 Intelligent Dual-Slot Quick USB-C Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340 14500 18650 21700 20700 AA AAA and More Batteries, with Organizer by nitecore - **How much does it cost?** ¥10041 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/92483471-nitecore-ums2-intelligent-dual-slot-quick-usb-c-battery-charger) ## Best For - nitecore enthusiasts ## Why This Product - Trusted nitecore brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Screen Insight 📊:** Stay informed with an intuitive LCD that displays battery health, charge status, and mode in real-time—no more guessing. - • **Turbocharge Your Power ⚡:** Delivers up to 4000mA total current for lightning-fast dual-slot charging with QC2.0+ USB-C compatibility. - • **Travel-Ready Organizer 🧳:** Includes a sleek dual-battery organizer case, perfect for professionals on the move who demand order and efficiency. - • **Intelligent & Safe Charging 🤖:** Automatically adjusts voltage and current to maximize battery lifespan while protecting your investment. - • **Universal Battery Whisperer 🔋:** Seamlessly charges a wide range of battery chemistries and sizes from 16340 to 21700, plus AA/AAA—one charger to rule them all. ## Overview The Nitecore UMS2 is a compact, intelligent dual-slot USB-C battery charger delivering up to 4000mA total current for rapid charging. Compatible with a broad spectrum of battery types and sizes including Li-ion, Ni-MH, Ni-Cd, and IMR, it features an LCD screen providing real-time battery health and charging status. Designed for professionals and travelers, it includes an organizer case and smart charging technology that optimizes performance and battery longevity. ## Description Buy Nitecore UMS2 Intelligent Dual-Slot Quick USB-C Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340 14500 18650 21700 20700 AA AAA and More Batteries, with Organizer: Battery Chargers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Really Impressive Charger, Big Upgrade from My Old One, Speedy, Easy, and Informative! - As someone who hadn’t upgraded their 18650 charger in quite a while, this UMS2 feels like a huge step up. The design is sleek and compact, yet it delivers an impressive amount of information, showing not just charge status and level, but also how long it’s been charging, the total capacity charged, the rate, and even the battery’s health. It’s packed with intelligent features, automatically detecting battery size, type, and optimal voltage, and adjusting the charge rate based on power input. You can still fine-tune settings manually if you want, which is a nice touch if needed. The USB-C connection makes it more universally compatible (though note it doesn’t come with a wall plug), and the included 2-battery organizer case is a nice bonus. Charging speed is much faster and more consistent than my older LUC D2, and the spring-loaded battery bays are smooth and easy to adjust for different sizes. The wide compatibility with various battery types and material builds makes it a very versatile tool for home use. My only minor wish is for an auto-off feature, but otherwise it’s silent, efficient, and very well-designed, at a great price for the value. Hopefully it holds on just as long as my old charger as well! So far, I’m thoroughly impressed and would definitely recommend! Review: Great! - Works well and charges my batteries fast. I had an old charger from the same brand and it used to charge my batteries from 2-3 hours and this one can do it from 1.5-2 hours. I’m happy with my purchase, thanks! ## Features - FAST AND EFFICIENT CHARGING- Reach a maximum total of 4000mA for two slots, 3000mA for one slot when pairing with a 9V QC2.0+ output USB power source. Reach a maximum 1000mA charging current per slot when paring with a standard 5V/2A USB source. - LCD DISPLAY- Reports key realtime information such as battery health, charging status and charging mode. - INTELLIGENT CHARGING- Automatically selects appropriate charging current and voltage to protect the batteries and prolong its lifespan - BATTERY TYPES & SIZES - Compatible with various battery types (li-ion/imr/lifep04/ni-cd/ni-mh) and common battery sizes including (18650, 16340,14500, rechargeable AA, AAA). - PERFECT FOR TRAVEL AND EDC - This bundle includes an organizer to keep you organized when you are on the go. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07JN49XYM | | Amperage | 3000 Amps | | Brand | Nitecore | | Color | Black | | Compatible Devices | 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, Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D | | Connector Type Used on Cable | USB | | Current Rating | 2 Amps | | Customer Reviews | 4.4 out of 5 stars 844 Reviews | | Input Voltage | 5 Volts | | Item Dimensions D x W x H | 2.87"D x 5.98"W x 1.57"H | | Item Weight | 5.56 Ounces | | Manufacturer | NITECORE | | Mfr Part Number | UMS2+ORG | | Model Number | UMS2 | | Number of Ports | 2 | | Output Voltage | 4.35 Volts | | Product Dimensions | 2.87"D x 5.98"W x 1.57"H | ## Product Details - **Brand:** Nitecore - **Color:** Black - **Item Weight:** 5.56 Ounces - **Output Voltage:** 4.35 Volts - **Product Dimensions:** 2.87"D x 5.98"W x 1.57"H ## Images ![Nitecore UMS2 Intelligent Dual-Slot Quick USB-C Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340 14500 18650 21700 20700 AA AAA and More Batteries, with Organizer - Image 1](https://m.media-amazon.com/images/I/71AZAgj3CpL.jpg) ## Questions & Answers **Q: My ums2 keeps going into reboot loop when at times inserting a 18650 battery; tried 2 brands of batteries; multiple usb cables; defective?** A: Have you tried a more powerful (output) USB adapter? If the issue persists, contact us (the seller) and we will have the issue resolved swiftly. **Q: Will this unit charge a protected 21700 battery? I know it will accept the unprotected battery.** A: Yes. It can charge both protected and unprotected 21700 battery. **Q: Does this unit have a discharge function?** A: No, it does not have a discharge function. **Q: Does it test for battery capacity?** A: No. It does not display the capacity of the battery. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Really Impressive Charger, Big Upgrade from My Old One, Speedy, Easy, and Informative! *by C***. on August 15, 2025* As someone who hadn’t upgraded their 18650 charger in quite a while, this UMS2 feels like a huge step up. The design is sleek and compact, yet it delivers an impressive amount of information, showing not just charge status and level, but also how long it’s been charging, the total capacity charged, the rate, and even the battery’s health. It’s packed with intelligent features, automatically detecting battery size, type, and optimal voltage, and adjusting the charge rate based on power input. You can still fine-tune settings manually if you want, which is a nice touch if needed. The USB-C connection makes it more universally compatible (though note it doesn’t come with a wall plug), and the included 2-battery organizer case is a nice bonus. Charging speed is much faster and more consistent than my older LUC D2, and the spring-loaded battery bays are smooth and easy to adjust for different sizes. The wide compatibility with various battery types and material builds makes it a very versatile tool for home use. My only minor wish is for an auto-off feature, but otherwise it’s silent, efficient, and very well-designed, at a great price for the value. Hopefully it holds on just as long as my old charger as well! So far, I’m thoroughly impressed and would definitely recommend! ### ⭐⭐⭐⭐⭐ Great! *by A***. on June 11, 2026* Works well and charges my batteries fast. I had an old charger from the same brand and it used to charge my batteries from 2-3 hours and this one can do it from 1.5-2 hours. I’m happy with my purchase, thanks! ### ⭐⭐⭐⭐⭐ Great *by N***Y on May 28, 2026* Amazing charger ## Frequently Bought Together - Nitecore UMS2 Intelligent USB Dual-Slot Quick Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340 14500 18650 21700 20700 AA AAA and More Batteries, with Organizer - Nitecore NL2150HPi Customized Battery, only Comparable i Series Tactical Flashlights (P10i, P20i, P20iX, P23i, P30i, P35i, i4000R etc.) - Nitecore HC35 2700 Lumen USB Rechargeable L-Shape Detachable Headlamp Flashlight, add NL2150 and LumenTac Organizer --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/92483471-nitecore-ums2-intelligent-dual-slot-quick-usb-c-battery-charger](https://www.desertcart.jp/products/92483471-nitecore-ums2-intelligent-dual-slot-quick-usb-c-battery-charger) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-31*