NITECORE UMS4 Intelligent USB Four Slot Battery Charger

Power up your batteries!

Juice up your batteries in the NITECORE UMS4 Intelligent USB Four Slot Battery Charger. Constructed with well-thought-out features, it delivers superior charging performance to keep up with your active lifestyle. This battery charger boasts a QC input capable of producing a total max output of 4000mA, an LCD display for real-time charging information and a USB charging port for outdoor charging.

QC Input
QC Input enables a total max output of 4000mA with a single slot max output of 3000mA. This means it only takes 55 minutes to charge 80% of a 3500mAh battery.

Specially Optimized Charging Program for IMR Batteries
The IMR battery charging program is able to monitor the entire charging process, ensuring that the cut-off voltage is always within safe limits. This ultimately extends the lifespan of batteries.

Internal Resistance and Battery Health Detection
When the charger is on and the battery is installed, the UMS4 will automatically detect and display the internal resistance and battery health. When ‘Poor’ is shown, this indicates that the battery should be replaced.

Real-Time Charging Information
Short press the V button to cycle through different charging information. Information includes charged volume, charging time, charging current, battery voltage, charging mode, cut-off voltage and battery type.

Intelligent Charging Mode Selection
UMS4 will automatically select between 3 charging modes (CC, CV and -dV/dt) according to the battery type and capacity.

Manual Charging Settings
The charging parameters can be set manually to meet various charging needs. Long press the C button to enter the charging setting mode. Charging voltage options include 3.7V / 4.2V / 4.3V. You can also choose between current settings 300mA - 3000mA.

Multiple Input Sources
The UMS4 is compatible with various mobile power sources, solar panel and USB adaptors to ensure endless power supply.

Over-Discharged IMR Battery Restoration
When an over-discharged IMR battery is inserted, the screen will show ‘EE EE’. In this case, long-press the V button to enter Restoration Mode. After restoration, the charging process will continue.

Over-Discharged Li-ion Battery Activation
The UMS4 is capable of reactivating over-discharged Li-ion batteries with a protective circuit. After battery installation, UMS4 will test and activate the battery before charging. When a battery is detected as damaged, the screen will show ‘EE EE’.

Anti Short-Circuit and Reverse Polarity Protection
If the batteries are inserted with reversed polarities or are short-circuited, the screen will flash to show ‘EE EE’.

Intelligent Temperature Regulation
The built-in temperature regulation system is designed to prevent overheating and to ensure the stability of the charging process.

Unique Cooling Fins
The cooling fins on the UMS4 are designed to enable extreme cooling performance to dissipate heat rapidly and to avoid possible hazards.

Authenticity and Safety Guarantee Validation
A 16-digit validation and a validation QR code is printed on all authentic NITECORE charger packaging boxes. Click here to validate your NITECORE charger’s authenticity.

NITECORE UMS4 Intelligent USB Four Slot Battery Charger Features:

• QC 2.0 input available
• Capable of charging 2 batteries simultaneously
• Controls each slot independently
• Up to 3000mA charging speed in a single slot
• Compatible with Li-ion and Ni-MH/Ni-Cd batteries with automatic detection
• Automatic detection of battery power level
• Automatic selection of appropriate voltage and charging mode (LiFePO4 and 3.8V Li-ion batteries excluded)
• Automatic selection between 3 charging modes (CC, CV and -dv/dt)
• Energy-efficient LCD display for real time charging information
• Capable of manually selecting charging cut-off voltage and charging current
• Automatic detection of large/small capacity batteries and automatic selection of appropriate charging current
• Automatic termination upon charging completion
• Reverse polarity and short circuit protection
• Over-discharged battery activation
• Li-ion battery restoration
• Overtime charging protection
• Automatic detection of battery internal resistance
• Displays battery health
• Made from durable, fire retardant PC materials
• Optimal heat dissipation
• Certified by RoHS, CE, FCC and CEC
• Insured worldwide by Ping An Insurance (Group) Company of China, Ltd.

NITECORE UMS4 Intelligent USB Four Slot Battery Charger Specifications:

• Input: DC 5V/2A 12V/1.5A
  18W (MAX)
• Output voltage: 4.35Vplus or minus 1% / 4.2Vplus or minus 1% / 3.7Vplus or minus 1% / 1.48Vplus or minus 1%
• Output current:
  
  • QC Mode: 3,000mA1 (MAX) 2,000mA2 (MAX) 1,000mA4 (MAX)
  • Standard Mode: 2,000mA1 (MAX) 1,000mA2 (MAX) 500mA4 (MAX)
• Compatible with: 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

NITECORE UMS4 Intelligent USB Four Slot Battery Charger Product Data Sheet