Nitecore UMS2 · Dual-Slot USB-C Fast Charger with LCD
$36.60
- Model: Nitecore UMS2
- Slots: 2 independent charging bays
- Max charging current: up to 3,000 mA on a single slot or 2,000 mA × 2 (with suitable QC/USB-C power supply)
- Total max output: 4,000 mA
- Chemistries: Li-ion / IMR / LiFePO₄ and Ni-MH / Ni-Cd (3.8 V Li-ion and LiFePO₄ require manual voltage setting)
- Input: DC 5 V⎓2 A or 9–12 V⎓2 A (QC 2.0 / USB fast charge, up to 18 W) via USB-C
- Display: LCD with real-time voltage, current, charged capacity, internal resistance and time
- Safety: Reverse-polarity, short-circuit, overcharge, over-time and thermal protection
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Description
Nitecore UMS2 • 2-Bay USB Fast Charger with Intelligent LCD Display
The Nitecore UMS2 is a fast, intelligent dual-slot USB charger for Li-ion/IMR/INR,
LiFePO4 and Ni-MH/Ni-Cd cells. With a clear LCD display, automatic cell detection,
user-selectable charging currents, and independent channels, it delivers outstanding versatility in a compact and travel-ready design.
High-speed, intelligent charging
With QC/PD USB input support, the UMS2 can deliver up to 3A per slot or
6A combined output when using a high-power wall adapter. Each channel operates independently, allowing you
to charge two batteries of different sizes and chemistries simultaneously. The intelligent LCD display provides real-time
feedback for voltage, current, charged capacity (mAh),
time elapsed, and cell health.
Safety features include over-charge protection, reverse-polarity detection,
short-circuit protection, and thermal monitoring. UMS2 automatically selects the optimal
current and algorithm for each cell, or allows manual current adjustment for advanced users.
Cell compatibility
- Li-ion / IMR / INR (3.6/3.7V): 10340, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650,
14500, 14650, 16340 (RCR123A), 16500, 16650, 17350, 17500, 17650, 17670, 18350, 18490, 18500, 18650,
18700, 20700, 21700 (unprotected & most protected), 22650, 25500, 26500, 26650 - LiFePO4 (3.2V): supported (manual mode recommended)
- Ni-MH / Ni-Cd (1.2V): AAA, AA, A, SC (as size permits)
Specifications
| Model | Nitecore UMS2 |
| Slots | 2 independent charging bays |
| Input | USB (5V⎓2A / 9V⎓2A QC/PD supported) |
| Max charging current | Up to 3A single slot (6A total) |
| Supported chemistries | Li-ion/IMR/INR 3.6/3.7V; LiFePO4 3.2V; Ni-MH/Ni-Cd 1.2V |
| Display | LCD showing V / mA / mAh / time / slot status |
| Charge termination | CC/CV (Li-ion/LiFePO4); ΔV/dt for Ni-MH/Ni-Cd |
| Protections | Over-charge, reverse-polarity, short-circuit, thermal |
| Dimensions | ~ 125 × 60 × 36 mm |
| Weight | ~ 150 g (without cable/cells) |
| Included | USB cable; user manual |
Always confirm battery chemistry and orientation before charging, place the charger on a stable, non-flammable surface with good
ventilation. Never leave charging batteries completely unattended.
Product-specific notes: For maximum charge speeds, use a QC/PD wall adapter (18W or higher).
Extra-long protected 21700 cells may be a tight fit depending on protection length.
Additional information
| Weight | 0.148 kg |
|---|---|
| Brand | |
| Charger Output (A) | 3.0A Max |
| Input Voltage | 5V USB |
| Compatibility | Li-Ion, Ni-MH |
| Charging Slots | 2 |
1 review for Nitecore UMS2 · Dual-Slot USB-C Fast Charger with LCD
Only logged in customers who have purchased this product may leave a review.
Nathan Wood –
Fast, feature-packed, great brand at a reasonable price. Thanks for the fast shipping!