Nitecore UM4 Charger
Technical 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)
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
Nitecore UM4 Charger
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Description
The Nitecore UM4 charger has a maximum output of 3,000mA (1,500mA per single slot), when used with a quick charge power source (9V/2A). At 1,500mA it takes approximately 2 hours to fully charge a 3500mAh 18650 battery. Each Nitecore UM4 is supplied with a USB lead only, so the quick charge power source is required to be purchased separately.
The UM4 incorporates an optimised IMR battery charging program, which is able to monitor the entire charging process., ensuring that the cut-off voltage is always within safe limits.
An LCD display shows real time charging information for the two bays including: charged volume, charging time, charging current battery voltage and battery type. UM4 will automatically select between 3 charging modes (CC, CV and -dV/dt) according to the battery type and capacity.
Other features include over-discharged IMR battery restoration as well as over discharged Li-ion battery activation.
Compatible with the following battery types:
IMR/Li-ion/LiFePO4: 10440, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 25500, 22650, 25500, 26500, 26650, 26700
Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D
All Nitecore chargers supplied by Flashaholics are direct from the factory and guaranteed to be genuine with scratch off validation codes on the box.