Nitecore UMS4 Review


Recommended for these features->

✅ Quick USB Charger

✅ Integrated Max Single Slot Output of 3000mA

✅ Automatic Detection of Battery Power Level and Automatic Selection of the Appropriate Voltage and Charging Mode

✅ Li-Ion Battery Restoration

✅ Li-Ion, IMR, LiFePO4: 10440, 14500, 14650, 16500, 16340(RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700,…Check Price

1. Quick USB Charger

When it comes to powering up your devices on the go, nothing beats a quick USB charger. And the Nitecore UMS4 is definitely one of the best out there. Its 4200mAh battery can charge most smartphones and tablets several times over, so you’ll never be left stranded with no way to recharge your devices. Plus, its small size makes it easy to take with you wherever you go, making it perfect for on-the-go charging needs.

2. Integrated Max Single Slot Output of 3000mA

With its integrated max single slot output of 3000mA, the Nitecore UMS4 is perfect for charging devices that need a lot of power, like smartphones and tablets. Plus, because it has a reversible USB port, you can use it to charge multiple devices at once. So whether you’re on the go or at home, this powerful battery charger will have your electronics ready to go in no time.

3. Automatic Detection of Battery Power Level and Automatic Selection of the Appropriate Voltage and Charging Mode

When it comes to power banks, you want something that will give you the most juice for your buck. That’s why the Nitecore UMS4 boasts an automatic detection of battery power level and automatically selects the appropriate voltage and charging mode so you can charge up your devices quickly and easily. This power bank also has a built-in flashlight so you can get around at night without having to use your phone or other light source.

4. Li-Ion Battery Restoration

A Li-Ion battery will eventually die, and while you can try to revive it with a charger, there is a much easier way. The Nitecore UMS4 is a battery restoration device that uses ultrasound to bring your dead battery back to life. Just place the UMS4 over the battery and press the start button, and in just 30 seconds you’ll have a working battery again. This handy device is portable so you can use it anywhere, and it comes with a lifetime warranty so you can be confident that it will work perfectly every time.

5. Li-Ion, IMR, LiFePO4: 10440, 14500, 14650, 16500, 16340(RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700,…

The Nitecore UMS4 is a 4-bay charger that supports the rechargeable Li-Ion, IMR, LiFePO4 batteries. It comes with a built-in battery level indicator and Smart Charge Technology to ensure optimal charging performance for your batteries. The Nitecore UMS4 also features reverse polarity protection and over-current, over-voltage, and short circuit protection to safeguard your batteries from damage.

Reviews & Ratings of Nitecore UMS4

Our Rating: 4.7 Out of 5 Stars

Check it out on Amazon-


The Nitecore UMS4 USB Universal 4-Port Speedy Smart Charger is a great option for charging your batteries. It has a built in battery case, so you can easily store your batteries and it also has a quick charge feature that will quickly bring your battery up to full power.

This Video Should Help:

Frequently Asked Questions

Is Nitecore a good battery charger?

Our best selection is the Nitecore D4 Charger, which doesn’t overcharge, has a huge display, and can automatically recognize a variety of batteries. Visit our guide to the top rechargeable batteries for more information.

How do I know if my Nitecore is real?

We strongly advise all Nitecore customers to validate their chargers online at, or you may scan the QR code on the validation code sticker to go to our validation website and validate your charger there.

What is C and V in Nitecore charger?

The battery recovery method, which is intended to recover over-discharged IMR batteries even when voltage is recorded at 0V, is started by holding down both “C” and “V” buttons simultaneously. 5. Automatic Adoption of the Current That Is Most Appropriate.

What is the best home battery charger?

The seven finest rechargeable battery chargers for extending the life of your batteries LCD Smart Battery Charger by BONAI. Rechargeable AA and AAA Value Charger from Energizer. Universal Battery Charger for EBL LCD. AA and AAA Battery Charger Pro from Energizer. 16 Bay AA/AAAA Battery Charger, POWEROWL. Smart Battery Charger from EBL.

What is an IMR battery?

Lithium-ion Manganese Rechargeable, or Li-MN, is referred to as IMR (lithium manganese). An IMR battery employs a distinct kind of oxide for his chemical composition, without trying to convey a scientific meaning.

How do I use Nitecore new i2?

Once the batteries have been inserted into the NEW i2, push the button located above the battery slot to activate Manual Settings mode. When a big capacity battery (>1200mAh) is present, press and hold the C button to enter Current Selection and choose between a 1A or 500mA charging current.

Does Nitecore have lifetime warranty?

Limited lifetime guarantee: All Nitecore products will continue to get assistance under our limited lifetime warranty after the end of their individual warranty terms. The limited lifetime guarantee does not cover accessories or replacement components; it only covers labor charges and maintenance.

Does Nitecore have a warranty?

All US customers who bought Nitecore items from our shop or from one of our dealers are covered by our warranty service. For information on product warranty durations and warranty service terms and conditions, see Nitecore warranty service.

What does red light on Nitecore charger mean?

The MH1A will stop charging and the red light will flash quickly if an issue is found while it is charging. Usually, defective or improperly placed batteries are at blame for this.

How do I know when my Nitecore i4 is fully charged?

When a battery slot has been charging for more than 20 hours, the i4 will automatically shut off that slot and three yellow power indicators will cease flashing and remain illuminated to signify that the charging process has been completed.

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About the Author

Simon Jameson

Simon Jameson is an expert reviewer at and has been with us since 2017. Trust his reviews as he is also a regular user of all products that he reviews.

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