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The Nitecore UMS4 charges four batteries at once from any USB power source, with each slot running on its own and up to 3,000 mA into a single cell.
It reads what you drop in - Li-ion, IMR, LiFePO4, NiMH or NiCd, from 10440 up to 26650 plus AA, AAA, C and D - and picks the right voltage and charge mode by itself. The LCD shows live voltage, current, capacity and an internal-resistance health reading for every slot.
Plug it into a QC wall adapter, a truck USB port or a power bank and it keeps a crew's light and meter batteries topped off.
Reverse polarity, short circuit and overtime protection, plus over-discharged cell activation, make it safe to leave running on the bench overnight.
Features:
Charges 4 batteries at once; each slot controlled independently
Up to 3,000 mA in a single slot (QC input); 4 x 1,000 mA with all slots full
Auto-detects Li-ion / IMR / LiFePO4 and NiMH / NiCd chemistry and picks the voltage and charge mode
CC, CV and -dV/dt charging modes, with automatic stop when full
LCD shows real-time charging data and battery internal resistance (health)
Manual selection of cut-off voltage and charging current
Reverse polarity, short circuit and overtime charging protection
Activates over-discharged cells and restores Li-ion batteries
USB-C input, QC 2.0 compatible, for use at the bench or on the road
Durable, fire-retardant PC housing with heat-dissipating design
Kit Includes:
UMS4 charger
USB charging cable
Specifications:
Input: DC 5V/2A, 12V/1.5A, 18W max
Output Voltage: 4.35V / 4.2V / 3.7V / 1.48V
Output Current (QC input): 3,000 mA x 1, 2,000 mA x 2, 1,000 mA x 4
Output Current (standard input): 2,000 mA x 1, 1,000 mA x 2, 500 mA x 4
Li-ion / IMR / LiFePO4 Sizes: 10440, 14500, 14650, 16340 (RCR123), 16500, 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 25500, 26500, 26650, 26700
NiMH / NiCd Sizes: AA, AAA, AAAA, C, D
Dimensions: 159 x 107 x 41 mm (6.26 x 4.21 x 1.61 in)
Weight: 255.4 g (9.01 oz), cable not included
Certifications: RoHS, CE, FCC, CEC
Model: UMS4
UMS4 User Manual
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