Nitecore UMS4 Four-Bay USB-C Battery Charger

Charge up to four removable rechargeable batteries with an LCD readout for each slot. UMS4 supports several battery chemistries and lets you adjust current and charging cut-off voltage when needed.

Features

• Four independently controlled slots.
• LCD shows voltage, current, charged capacity and charging time; internal-resistance assessment provides a battery-health indication.
• Automatic charging completion, reverse-polarity and short-circuit protection.
• USB-C input with QC 2.0 fast-charge support.

Specifications

• Input: 5 V / 2 A or 12 V / 1.5 A; 18 W maximum.
• QC mode maxima: 3 A with one battery, 2 A each with two, or 1 A each with four.
• Standard mode maxima: 2 A with one battery, 1 A each with two, or 0.5 A each with four.
• Charging cut-off options: 4.35 V, 4.2 V, 3.7 V and 1.48 V.
• Dimensions: 159 × 107 × 41 mm; weight: 255.4 g without cable.

Battery compatibility

Supports appropriate IMR/Li-ion/LiFePO4 cylindrical rechargeable cells, including 14500, 16340, 18650, 21700 and 26650, plus Ni-MH/Ni-Cd AA, AAA, AAAA, C and D. Check the manual for the complete size list and charging settings. LiFePO4 and 3.8 V Li-ion cells require manual voltage selection. Do not charge disposable alkaline or primary lithium cells, damaged batteries or incompatible chemistries.

Power and contents

UMS4 charger and USB charging cable. Batteries and mains adapter are not included. Maximum charging rates require a compatible QC power source and depend on cell size, capacity and selected settings. A USB-C connector alone does not guarantee QC fast charging.

Delivery

Supplied by FlashlightGo from China. Estimated UK delivery: 7–15 business days after dispatch.

Buying help

Charging and compatibility guide — compare connections, power and your setup before choosing. For advice about this product, send us your device model and the option you are considering.