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CHoiKWong

DC Power Aadpter for Milwaukee M18 Battery 18V to 12V Step Down Voltage Converter 15A MAX 180W Inverter Automatic Buck Converter DC Voltage Regulator with Upgraded Low Voltage Protection and Switch

  • Based on 158 reviews
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$19.75 Why this price?
Save $3.24 was $22.99

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Features

  • Perfectly compatible with Milwaukee M18 battery 18v series 48-11-1815 / 48-11-1820 / 48-11-1828 / 48-11-1840 / 48-11-1850 / 48-11-1860 and more. Power adapter connector is well-made, snug fit your battery, can install and lock battery easily. Battery adapter added switch ensures you can turn on&off the battery easily.
  • Input voltage range: DC 18V-20V; Output voltage: DC 12V; Output current: 15A MAX; Output Power 180W. Our voltage buck converter adopted synchronous rectification technology further improve conversion efficiency and good stability. Power conversion efficiency can reach 95%; Ripple wave: 50Mv; Starting delay time:2S.
  • Better safety, voltage regulator equipped smart chip, provides Over-current, Over-load, Low-load, Over-voltage, Under-voltage, Over-heat and Short-circuit intelligent protection. We upgraded low voltage protection, this voltage converter built in over low voltage protection, auto shut off if the battery voltage is lower than 14.4v, protect your devices from overpower damage.
  • High quality & Easy to use, DC 18V to DC 12V Step down converter made of aluminum shell with epoxy potting, waterproof, anti-dust, anti-humidity, anti-shock and better heat dissipation, more durable. We combine the battery adapter and the voltage converter with 2 heat-resistant wires. make it more easy to use. Just install the battery to the battery adapter and then connect the voltage converter to your device. (Note: Battery NOT Included)
  • Widely used, this power inverter suitable for various 12v devices ideal for upgrade motor, ride on toys, golf carts, car trucks, speaker, monitoring equipment, power tools, led strip light, work lights or robotics DIY etc.

Description

Step down converter compatible with Milwaukee M18 18-volt Li-ion batteries (48-11-1815 / 48-11-1820 / 48-11-1828 / 48-11-1840 / 48-11-1850 / 48-11-1860, etc.) Power adapter connector is well-made, snug fit your battery, can install and lock battery easily. Input voltage range: DC 18V-20V; Output voltage: DC 12V; Output current: 15A MAX; Output Power 180W. Our voltage buck converter adopted synchronous rectification technology further improve conversion efficiency and good stability. Power conversion efficiency can reach 95%. Voltage regulator equipped smart chip provides Over-current, Over-load, Low- load, Over-voltage, Under-voltage, Over-heat and Short-circuit intelligent protection. We upgraded low voltage protection, this voltage converter built in over low voltage protection, auto shut off if the battery voltage is lower than 14.4v, protect your devices from overpower damage. We combine the battery adapter and the voltage converter with 2 heat-resistant wires. make it more easy to use. Just install the battery to the battery adapter and then connect the voltage converter to your device. Ideal for upgrade motor, ride on toys, golf carts, car trucks, speaker, monitoring equipment, power tools, led strip light, work lights or robotics DIY etc. Note: 1. This converter is not a charger, it only outputs the voltage and power directly from your battery. 2. When using, make sure that the positive and negative wires of the device correspond to the positive and negative wires of the adapter. 3. If not used for a long time, please be sure to remove the battery form the adapter. 4. This product set NOT include batteries Package includes: 1 x power adapter+voltage regulator 1 x wire terminals 2 x screw fasteners If you have any problems for the items, please contact us immediately to get the after- sale return and exchange service we provide.

Brand: CHoiKWong


Color: Red


Input Voltage: 20 Volts


Output Voltage: 12 Volts


Plug Format: 2 Pin


Brand: CHoiKWong


Model Number: b2b8cdb2-ad3c-4707-82e8-7e1120beae45


UPC: 791307216743


Manufacturer: CHoiKWong


Warranty Description: 12 months


Built-In Media: 1 x Red Box, 2 x Screw, 4 x Metal Bracket


Unit Count: 1.0 Count


Input Voltage: 20 Volts


Output Voltage: 12 Volts


Plug Type: 2 Pin


Power Source: Battery Powered


Color: Red


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Reviewed in the United States on July 5, 2025 by Bruce Jeffcoat
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UNSAFE PRODUCT!!! Wish If you care about the saftey of your children and family. DO NOT BUY! This product can put your family and home in jeopardy. This unit failed. Caught fire. Rendered my childs powerwheel useless and even ruined a $100 milwaukee 5.0mah battery in the process. As you can see in the photos the battery holder melted through the top of the battery, Shorting the internal battery cells causing another dangerous situation within the battery that i had to disassemble to keep the cells from exploding. This faulty product could have easily burnt down my garage if I hadn't caught it in time. I expect a full refund and replacement milwaukee 5.0mah battery. ... show more
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Works perfect
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Works well with m18 battery. Great fitment and good quality materials. Will be used to power lights for a minibike project.
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I use this quite a bit now, especially when training other technicians. Nice little tool to supply correct voltage to whatever 12 volt appliance you are working with, especially since most drill battery voltages exceed whatever 12 volt appliance you are testing. This will effectively reduce the voltage to an acceptable test level and light to carry around an Motorhome or car application to test different 12 volt circuits. ... show more
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This adapter is UNSAFE for use in children”s toys. Used it three times and today (one day after return eligibility) the adapter melted my $200 Milwaukee battery. THIS PRODUCT IS DANGEROUS!
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