Nitecore UMS2 charger (Nitecore, SKU: UMS2) is an intelligent dual-slot charger designed for Li-ion, IMR, LiFePO4, Ni-MH and Ni-Cd rechargeable batteries. Two independently controlled slots allow different batteries to be charged simultaneously, while the LCD displays charging current and time, voltage, charged capacity, internal resistance and battery health, among other information. When powered by a QC 2.0 compatible source, the maximum charging current in one slot is 3,000 mA.

Key features

• two independently controlled charging slots
• maximum charging current of 3,000 mA for one battery in QC Mode
• simultaneous charging of two batteries at up to 2,000 mA per slot in QC Mode
• automatic detection of battery type and capacity and selection of the appropriate charging current
• manual adjustment of charging current and cut-off voltage
• LCD displaying charging parameters and progress
• internal resistance measurement and battery health assessment
• activation of over-discharged Li-ion batteries and restoration function for IMR batteries
• reverse polarity, short-circuit and overtime charging protection
• housing made of durable, fire-retardant PC material

Set contents

• Nitecore UMS2 charger
• USB power cable

Technical specifications

• manufacturer: Nitecore
• model: UMS2
• type: intelligent dual-slot charger
• number of slots: 2
• slot control: independent
• input: DC 5 V / 2 A or 9 V / 2 A
• maximum input power: 18 W
• output voltages: 4.35 V ± 1%, 4.2 V ± 1%, 3.7 V ± 1% or 1.48 V ± 1%
• maximum current in QC Mode: 3,000 mA × 1 or 2,000 mA × 2
• maximum current in Standard Mode: 2,000 mA × 1 or 1,000 mA × 2
• manual current adjustment range: 100–3,000 mA in QC Mode
• supported rechargeable battery types: Li-ion, IMR, LiFePO4, Ni-MH and Ni-Cd
• compatible Li-ion / IMR / LiFePO4 sizes: 10440, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 25500, 26500, 26650 and 26700
• compatible Ni-MH / Ni-Cd sizes: AA, AAA, AAAA, C and D
• dimensions: 152 × 73 × 40 mm
• weight: 157.7 g, excluding the cable

The Nitecore UMS2 enables controlled charging of many popular rechargeable battery types, while its independent slots and clear display make the entire process easier to monitor.