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An on the go Quick charge USB Universal battery charger can be plugged into anywhere, worldwide!
The Nitecore UM4 is an intelligent, QC 2.0 compatible USB charger with two charging slots and LCD display.
With the UM4, Li-ion, Li-ion IMR, NiMH/NiCd and LiFePO4 batteries can be charged. Nitecore UM4 charger detects the battery type, determines the battery state, the charge status of the battery and automatically sets the correct charging method.
The standard charging current is 500 mA. However, this can be increased manually, depending on the battery type, up to 1A and in QC mode up to 1.5A.
Deep-discharged lithium-ion batteries can be reactivated in the UM4 (please observe the instruction manual).
Technical details
Input voltage: DC 5V/2A 9V/2A 18W (Max).
Output voltage: 4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%
QC mode: 1,500mA*1 (MAX), 1,500mA*2 (MAX), 750mA*4 (MAX)
Standard mode: 1,500mA*1 (MAX), 1,000mA*2 (MAX), 500mA*4 (MAX)
Compatible with the following battery types:
Li-ion, IMR, LiFePO4: 10440, 14500, 14650, 16500, 16340(RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490,
18500, 18650, 18700, 20700, 21700, 22500, 25500, 26500, 26650, 26700
Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D
Dimensions: 152 mm x 73 mm x 40 mm.
Weight: 148.3g (without the cable)",
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{
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{
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"url": "https://www.batteryjunction.com/brands/shop-by-brand/nitecore/nitecore-um4-intelligent-usb-four-slot-charger",
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{
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{
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"title": "Nitecore UM4 USB Universal 4-Port QC Smart Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 26650 22650 21700 20700 18650 18490 18350 17670 17500 17335 16340 RCR123 14500 10440 AA AAA AAAA C D Batteries",
"brand": "Nitecore",
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"url": "https://www.amazon.com/dp/B07KT1RPVR?tag=atariguidz-20",
"description": "Nitecore UM4 High-Quality 4-Way Li-Ion Charger with LCD Display
An on the go Quick charge USB Universal battery charger can be plugged into anywhere, worldwide!
The Nitecore UM4 is an intelligent, QC 2.0 compatible USB charger with two charging slots and LCD display.
With the UM4, Li-ion, Li-ion IMR, NiMH/NiCd and LiFePO4 batteries can be charged. Nitecore UM4 charger detects the battery type, determines the battery state, the charge status of the battery and automatically sets the correct charging method.
The standard charging current is 500 mA. However, this can be increased manually, depending on the battery type, up to 1A and in QC mode up to 1.5A.
Deep-discharged lithium-ion batteries can be reactivated in the UM4 (please observe the instruction manual).
Technical details
Input voltage: DC 5V/2A 9V/2A 18W (Max).
Output voltage: 4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%
QC mode: 1,500mA*1 (MAX), 1,500mA*2 (MAX), 750mA*4 (MAX)
Standard mode: 1,500mA*1 (MAX), 1,000mA*2 (MAX), 500mA*4 (MAX)
Compatible with the following battery types:
Li-ion, IMR, LiFePO4: 10440, 14500, 14650, 16500, 16340(RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490,
18500, 18650, 18700, 20700, 21700, 22500, 25500, 26500, 26650, 26700
Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D
Dimensions: 152 mm x 73 mm x 40 mm.
Weight: 148.3g (without the cable)",
"features": [
"USB Powered Universal Battery Charger, allows for on the go worldwide portability",
"Quick Charge 2.0 Integrated Max Single Slot Output of 1500mA Charging allows for incredibly fast charging speeds",
"Input voltage: DC 5V/2A 9V/2A 18W (Max)",
"Output voltage: 4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%",
"Li-Ion, IMR, LiFePO4: 10440, 14500, 14650, 16500, 16340(RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 25500, 26500, 26650, 26700 Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D"
]
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]
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"last_updated": "2026-04-26",
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"campsaver.com",
"Amazon"
],
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"version": "1.2"
}
}
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}
}