Keep your power ready with the Nitecore UMS4 4-Slot USB Fast Charger, engineered for speed, safety, and versatility. With charging speeds up to 3000mA per slot, the UMS4 can quickly and efficiently recharge a wide range of batteries, including popular sizes like 18650, 21700, and AA Ni-MH/Ni-Cd.
The intelligent charging system automatically detects battery power levels and applies the ideal voltage and current for each slot, while allowing manual adjustments for specialty cells. A bright LCD display provides real-time charging details such as voltage, current, battery type, charged volume, and health status.
Built-in safety protections guard against short circuits, overcharging, and improper insertion. Compact and versatile, the UMS4 works with USB adapters, power banks, and even solar panels, making it the ultimate charging companion for at home or in the field.
Key Features:
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Charges up to 4 batteries simultaneously with independent slot control
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Quick Charge mode delivers up to 3000mA in a single slot
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LCD display with real-time charging information
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Compatible with IMR, Li-ion, LiFePO4, Ni-MH, and Ni-Cd batteries
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Works with USB adapters, power banks, and solar panels
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Built-in short circuit, overcharge, and reverse polarity protections
Specifications Table
| Feature |
Details |
| Input |
DC 5V/2A, 12V/1.5A, 18W (Max) |
| Output Voltages |
4.35V ±1%, 4.2V ±1%, 3.7V ±1%, 1.48V ±1% |
| Output Current (QC) |
3000mA ×1 (Max), 2000mA ×2 (Max), 1000mA ×4 (Max) |
| Output Current (Std) |
2000mA ×1 (Max), 1000mA ×2 (Max), 500mA ×4 (Max) |
| Battery Compatibility |
IMR/Li-ion/LiFePO4: 10440–26700; Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D |
| Dimensions |
6.26" × 4.21" × 1.61" |
| Weight |
9.01 oz |
| Included |
Nitecore UMS4 Charger, Micro USB Cable |
