Nitecore UM4 Battery Charger

The Nitecore UM4 Charger is a four-slot smart charger that will quickly charge batteries of varying capacity and sizes efficiently. With a single slot max output of 1,500mA, it is possible to charge up to 80% of a 3,500mAh battery in 2 hours - you will always have batteries to use that are charged without losing any power to overheating or overcharging. Not to mention, with the four-slots, this charger is able to charge all four batteries independently from each other and you can control the batteries charging modes on the built-in LCD screen. The Nitcore UM4 Charger has a specially optimized charging program for IMR batteries. The program ensures the cut-off voltage is within safe limits and, unlike chargers without these capabilities, the UM4 will extend the lifespan of the batteries.
Features:

• Intelligent USB Four-Slot Charger

• QC 2.0 input available

• Capable of charging 4 batteries simultaneously and controlling each slot independently

• Up to 1,500mA 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 and automatic selection of the appropriate voltage and charging mode

• Automatic selection between 3 charging modes (CC, CV, and -dV/dt)

• Energy-efficient LCD display for real-time charging information

• Capable of manually selecting the charging cut-off voltage and the charging current

• Automatic termination of large/small capacity batteries and automatic selection of appropriate charging current

• Automatic termination upon charging completion

• Reverse polarity protection and short circuit protection

• Over-discharged battery activation

• Li-ion battery restoration

• Overtime charging protection

• Automatic detection of battery internal resistance and display of battery health

• Made from durable and fire-retardant PC materials

• Optimal heat dissipation design

• Certified by RoHS, CE, FCC, and CEC

Specifications:

• Input - DC 5V/2A 9V/2A 18W (MAX)

• Output - 4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%

• QC Mode - 1,500mA*1 (MAX), 1,500*2 (MAX), 750mA*4 (MAX)

• Standard Mode - 1,500mA*1 (MAX), 1,000mA*2 (MAX), 500mA*4 (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

• Dimensions - 6.26" x 4.21" x 1.61" (159mm x 107mm x 41mm)

• Weight - 8.21oz (232.8g)

Package includes:

• Nitecore UM4 Quick Charger

• User Manual

• Warranty Card