Nitecore UMS4 Four – Cell Charger

The Nitecore UMS4 charger can charge 4 batteries simultaneously and control each slot independently. It takes only 55 minutes to charge an 80% capacity 3500 mAh battery. The LCD screen can display real-time information about the battery’s status-“Good” or “Bad”-as well as internal resistance, charging current, battery voltage, charge capacity, and charging time. It supports automatic detection of the battery’s charge level and automatic selection of the appropriate voltage and charging mode, as well as automatic selection among 3 charging modes (CC, CV, and -dV/dt). Charging parameters can be set manually to meet various charging needs. The specially designed USB-C port is compatible with various mobile power sources, solar panels, and USB adapters to ensure uninterrupted power supply. The UMS4 includes an optimized IMR battery charging program that monitors the entire charging process, ensuring that the cut-off voltage always remains within safe limits to extend battery life. The UMS4 is compatible with 3.6V/3.7V lithium-ion rechargeable batteries, 3.8V lithium-ion rechargeable batteries, 1.2V Ni-MH/Ni-Cd rechargeable batteries, and 3.2V LiFePO4 batteries. Numerous safety measures ensure a safe charging process, including automatic detection of the battery’s internal resistance, short-circuit and reverse polarity protection, overcharge protection, reactivation of a deeply discharged lithium-ion battery, and recovery of a deeply discharged IMR battery. In addition to being made of durable and fire-resistant PC materials, the built-in temperature control system is designed to prevent overheating and ensure a stable charging process. If there is no button or battery activity within 3 minutes, the screen will automatically dim to conserve power.

Nitecore UMS4 Charger Specifications

• Input: DC 5V/2A, 12V/1.5A, 18W (MAX.)
• Output Voltage: 4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%
• Output Current (QC Mode): 3,000mA*1 (MAX) 2,000mA*2 (MAX) 1,000mA*4 (MAX)
• Standard mode: 2,000 mA*1 (MAX) 1,000 mA*2 (MAX) 500 mA*4 (MAX)
• Compatible with: IMR/Li-ion/LiFePO4: 10440, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18,700, 20,700, 21,700, 22,500, 22,650, 25,500, 26,500, 26,650, 26,700 Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D