Nitecore UMS2 Intelligent 2 Bay Battery Charger


In stock

  • Capable of charging 2 batteries simultaneously
  • Each of the 2 battery slots monitors and charges independently
  • LCD Display for Real-Time Charging Information

$63.55 $99.91

In stock

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Nitecore UMS2 Description

The UMS2 Charger is a high-quality battery charger designed for use with rechargeable lithium-ion batteries. This charger features two independent charging slots, which allows you to charge two batteries at the same time. The UMS2 Charger is compatible with a wide range of lithium-ion batteries, including 18650, 20700, 21700, and more.

The UMS2 Charger is incredibly easy to use, thanks to its simple and intuitive interface. The charger features an LCD screen that displays real-time charging information, including the charging status, battery voltage, and charging current. The charger also includes a number of safety features, such as overcharge protection, over-discharge protection, and short circuit protection, which ensure that your batteries are charged safely and efficiently.

This charger is designed with convenience in mind, featuring a compact and lightweight design that makes it easy to take with you wherever you go. The UMS2 Charger is perfect for use at home or on the go, making it an essential accessory for anyone who uses rechargeable lithium-ion batteries. With its advanced features and simple, user-friendly design, the UMS2 Charger is an excellent choice for anyone looking for a high-quality battery charger.


The NITECORE UMS2 Intelligent USB dual-slot charger is designed to recharge batteries fast, safe and with superior efficiency. The UMS2 reaches a maximum total output of 4000mA when used with a 2A output USB power adapter. When powered or connected to a quick charge (QC) power adapter, the charger will display “Quick Charge” with the single slot achieving a max output of 3000mA.


A bright LCD front and centre reports crucial real-time information. Including battery health, charged volume, charging time, battery voltage, charging current, battery type, cut-off voltage and current charging mode. The UMS2 charger also offers an advanced energy-saving function that activates and dims the LCD display after 10 minutes if no interaction is detected.


The UMS2 contains intelligent charging technology capable of automatically detecting and applying an appropriate charging current/voltage whilst also allowing the user to manually adjust the charging current/voltage for specialized battery types. The UMS2 supports numerous battery types (li-ion/imr/lifep04/ni-cd/ni-mh) and the widest variety of common battery types.

Nitecore UMS2 Specification

• Capable of charging 2 batteries simultaneously
• QC Input Available
• Single slot Max Output of 3000 mah
• Features three charging modes (CC, CV and -dV /dt)
• 55 minutes to charge 80% of a single 3500mah battery
• Each of the 2 battery slots monitors and charges independently
• Optimized charging design for IMR batteries
• Automatically detects battery status and selects correct voltage
• The USS2 is able to recover depleted IMR batteries
• LCD Display for Real-Time Charging Information
• Internal Resistance and Battery Health Detection
• Compatible with USB adapters, power banks, solar panels and more
• Built in safety protections to prevent short circuits, overcharging, and improperly inserted batteries
• Over-Discharged IMR battery Restoration
• Anti-Short Circuiting and reverse Polarity Protection
• Made from durable ABS (fire retardant / flame resistant)
• Certified by RoHS, CE, FCC, CEC and KC

Nitecore UMS2 Compatibility

IMR / Li-ion / LiFePO4 Batteries
• 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
• C
• D

Weight0.4999 g

Customer Reviews

Based on 1 review
Great battery charger

Quite a sophisticated charger which definitely does its job. Unfortunately I didn't realise that 26650 batteries have different terminals (flat), so I ordered the wrong ones 😵‍💫