Nitecore UM2 USB Charger

The Nitecore UM2 USB Charger is a versatile and efficient charging solution that provides a total maximum output of 3000 mA, allowing you to charge your batteries quickly and efficiently. The single-slot maximum output is 1500 mA, providing fast charging for individual batteries. The charger is equipped with an LCD display that provides real-time charging information, including battery voltage, charging current, and charging time. This allows you to monitor the charging progress and make informed decisions.

With a USB charging port, the UM2 can be used to charge your batteries on the go, making it a convenient option for outdoor activities or travel. The charger features intelligent charging mode selection, automatically detecting the battery type (Li-ion or Ni-MH/Ni-Cd) and applying the appropriate charging parameters. This ensures safe and optimized charging for all compatible battery types. The UM2 is equipped with an energy-saving function that automatically enters a low-energy standby mode when charging is complete, helping to reduce energy consumption and maximize efficiency.

The charger is compatible with Li-ion and Ni-MH/Ni-Cd batteries, supporting sizes such as 18650, 21700, AA, and AAA. The automated detection feature ensures hassle-free and reliable charging for various battery types.

The Nitecore UM2 USB Charger offers versatility, efficiency, and convenience for all your charging needs. With its comprehensive charging features, intelligent mode selection, and compatibility with various batteries, this charger is an essential tool for keeping your batteries powered and ready for use in any situation.

Product Features in Detail

Intelligent USB dual-slot charger
The new NITECORE UM2 is a QC input available, intelligent USB dual-slot charger, with a total max output of 3,000 mA and a single slot max output of 1,500 mA and is capable of charging 2 batteries simultaneously and controlling each slot independently. It only takes 2 hours to charge 80% of a 3,500mAh battery.

LCD screen display
The LCD screen can display a real-time information of Charging Current, Battery Voltage, Charged Volume and Charging time. It can enable an automatic detection of battery power level and automatic selection of the appropriate voltage and charging mode and automatic selection between 3 charging modes (CC, CV and -dV/dt). The charging parameters can be set manually to meet various charging needs.

Optimized IMR battery charging 
The specially designed Micro USB port is compatible with various mobile power source, solar panel and USB adaptors to ensure endless power supply. UM2 incorporates an optimized IMR battery charging program, which is able to monitor the entire charging process, ensuring that the cut-off voltage is always within safe limits to extend the lifespan of the batteries. The UM2 is compatible with 3.6V/3.7V Li-ion rechargeable batteries, 3.8V Li-ion rechargeable batteries, 1.2V Ni-MH/Ni-Cd rechargeable batteries and 3.2V LiFePO4 batteries.

Multiple safeguards
Multiple safeguards ensure the safe charging process, including anti-short circuiting and reverse polarity protection, overtime charging protection, over-discharged Li-ion battery activation and over-discharged IMR battery restoration. Apart from being constructed from durable and fire retardant PC materials, the built-in temperature regulation system is designed to prevent the overheat and to ensure the stability of the charging process. If there is no action to the buttons or batteries in 10 minutes, the screen will automatically go dim to save energy.