Top 10 Best milwaukee battery adapter in 2026

Last Updated - 6/9/2026

🏆Best Choice

Azocek

220W Azocek Power Inverter Compatible with Milwaukee 18V Battery, DC 18V to AC 110V Portable Power Station with 1 AC Outlet, 2 USB Ports & 1 Type-C Fast Charging, 400LM LED Work Light

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Compatible with 18V Batteries: This Azocek power inverter is specifically designed Compatible with Mil-wau-kee 18V batteries (e.g., 48-11-1815, 48-11-1850, 48-11-1820), providing portable power for outdoor activities or emergencies anytime, anywhere. (Battery not included)
•220W DC to AC Power Conversion: Converts 18V DC to 110V-120V AC, providing a reliable power source for phones, laptops, tablets, and other small electronics, making it essential for travel and power outages.
•Fast Charging USB and Type-C Ports: This Azocek power inverter features one AC outlet, two 18W USB QC ports, and one 30W PD Type-C port, enabling the simultaneous rapid charging of multiple devices.
•Multi-Function 400LM LED Light: Equipped with a 3-level adjustable brightness LED work light, strobe function, and a 90-degree adjustable lighting angle, making it ideal for outdoor use and emergency situations.
•Enhanced Safety Features: This inverter provides comprehensive protection against short circuits, overcurrent, low voltage, overheating, overload, and over-discharge. The built-in cooling fan effectively dissipates heat, ensuring reliable operation in various environments.

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$39.99

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CHoiKWong

1 Packs Power Wheel Adapter for Milwaukee M18 Battery Adapter 18V Power Wheel Battery Conversion Kit with Switch, Fuse & Wire Terminals, 12AWG Wire, Power Connector for DIY Rc Car Toys and Robotics

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•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. Our battery adapter connector is well-made, snug fit your battery, can install and lock battery easily. Made of ABS plastic, heat resistant and not easy to corrode, suitable for indoor and outdoor use
•Better security, we upgrade the line protection device of the battery adapter. Added switch ensures you can turn on&off the battery easily, equipped 30Amp fuse protect battery devices from overpower damage, fuse holder rubber cap fits on tightly to protect blade fuse inside. Silicone copper wire improves the conductivity and safety, heat-resistance 12 AWG wire is suitable for high-power applications
•Easy to use, only need to move the power adapter into the groove, then push converter and make sure it has locked the battery. If you want to remove the adaptor from the battery, please press down the buckle of the battery, then remove it. There are 2 fixing screw holes on the adapter, can be well fixed to the walls, machines or DIY product
•Widely used, power wheel battery adapter has 12 gauge wire installed, Maximum permissible current 20A, provides enough power upgrade your power tools, ride on toys, work lights or robotics DIY. Package includes 1 pack power wheel adapter with fuse holder and 3 pack 30Amp fuse and 1 pack wiring terminal, 2 screw fasteners (Note: battery not included)
•Important Tips: This converter is not a charger, it only outputs the voltage and power directly from your battery. The red wire is connected to the positive terminal, black wire is connected to the negative terminal. When using, make sure that the positive and negative wires of the device correspond to the positive and negative wires of the adapter. If not used for a long time, please be sure to remove the battery form the adapter

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$9.99

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Crivon

2-Pack 18V for Milwaukee M18 Battery Adapter for Power Wheels: Power Tool Drill Battery Adapter Converter for Power Wheels RC Car DIY Battery Connector Upgrade Conversion Kit with 30A Fuses 12AWG Wire

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Perfect Adapter Compatible with Milwaukee M18 Batteries: The Crivon battery adapter is fully compatible with Milwaukee 18V series batteries, including 48-11-1815, 48-11-1820, 48-11-1828, 48-11-1840, 48-11-1850, etc. This drill battery adapter snugly fits your M18 battery, easily locking into place without hassle, quickly transforming them into reliable power sources for DIY upgrade, such as for Power Wheels, for Peg Perego toys, RC cars, and more, without requiring complex wiring or extra tools
•Boost Toy Performance & Extend Playtime: Instantly upgrade your kids' electric cars, including for Power Wheels Jeep, RC trucks, DIY robotics, and battery-powered toys with Crivon battery adapter for Power Wheels. By converting power drill battery into powerful DC power sources, Crivon battery conversion kit significantly increases speed, torque, and runtime. Your kids will enjoy longer-lasting outdoor fun, making backyard adventures, park rides, and DIY toy car item more exciting and enjoyable
•Advanced Safety Protection for Peace of Mind: Made of robust ABS plastic, Crivon M18 battery adapter is heat-resistant & corrosion-proof, featuring upgraded 30A fuse holders with waterproof rubber caps and premium 12 AWG silicone copper wires supporting up to 20A current. Effectively prevents battery damage from overheating, short circuits, overloads, or excessive current, ensuring superior conductivity, enhanced safety, and stable power supply for your battery and connected powered equipment
•Convenient & Easy Installation: Designed with user convenience in mind, Crivon power converter makes installation a breeze. Simply slide adapter into battery groove until securely locked, and you're ready to power your devices. To remove, press battery buckle and detach adapter. The included wire terminals enable quick connections, alleviating any hassle during setup. Two fixing screw holes on M18 adapter allow easy mounting on wall, machine, or DIY items, providing stability and convenience
•Important Usage Tips & Precautions: Crivon power tool battery converter adapter is not a charger; it only transmits direct voltage and power from your battery. When utilizing the device, ensure that the positive (red) and negative (black) wires correspond correctly to the adapter’s terminals to avoid polarity issues. After use, remove battery from adapter to prevent unnecessary discharge, preserving battery life and adapter performance (Note: Battery not included)
•Perfect Accessories for Battery Upgrade Kits Made for Milwaukee M18 and for Power Wheels: Crivon 18V battery adapter set includes 2 battery adapters, 6 replacement 30Amp fuses, and 2 wire terminals, making it ideal for diverse applications by delivering ample power and flexibility for your battery conversion kit

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$15.99

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CHoiKWong

2 Packs Power Wheel Adapter for Milwaukee M18 Battery Adapter 18V Power Wheel Battery Converter with Fuses & Wire Terminals, 12AWG Wire, Power Connector for DIY Rc Car Toys, Robotics and Rc Truck

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•✅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. Our battery adapter connector is well-made, snug fit your battery, can install and lock battery easily. Made of durable ABS plastic, heat resistant and not easy to corrode, perfect for indoor and outdoor use.
•✅Better security, our product upgrade has some security design. Equipped with 30Amp fuse protects the battery equipment from being damaged by excessive power. Waterproof fuse holder rubber cap fits on tightly to protect blade fuse inside. High quality silicone copper wire improves the conductivity and safety, heat-resistance 12 AWG wire is suitable for high-power applications.
•✅Easy to use, only need to move the power adapter into the groove, then push converter and make sure it has locked the battery. If you want to remove the adaptor from the battery, please press down the buckle of the battery, then remove it. There are 3 fixing screw holes on the adapter, can be well fixed to the walls, machines or DIY product.
•✅Widely used, power wheel adapter has 12 gauge wire installed, Maximum permissible current 20A, can use it to upgrade your power wheels, rc toys, work lights or Robotics DIY with enough power. Package includes 2 pack power wheel adapter with fuse holderand 6 pack 30Amp fuse and 2pack wiring terminal. (Note: battery not included)
•✅Important Tips: This converter is not a charger, it only outputs the voltage and power directly from your battery. The red wire is connected to the positive terminal, black wire is connected to the negative terminal. When using, make sure that the positive and negative wires of the device correspond to the positive and negative wires of the adapter. If not used for a long time, please be sure to remove the battery form the adapter.

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$15.19

$15.99

-5%

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Azocek

Azocek 18V to 12V Step Down Converter Compatible with Milwaukee 18V Battery Azocek Power Wheel Battery Adapter DC 12V 20A 240W Buck Converter Regulator with 30A Fuse & Wire Terminal

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Azocek Step-down Converter: Input Voltage: DC 18V-20V; Output Voltage: DC 12V; Output Current: 20A Max; Output Power 240W Max
•Compatibility: Azocek adapter perfectly compatible with Mil-wau-kee 18V lithium batteries, works with 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840, 48-11-1815 etc. Our battery adapter connector is well-design, snugly fit your battery, easy to install and remove(Note: Battery NOT Included)
•Better Safety: Voltage regulator built-in smart chip, features Over-current, Over-voltage, Over-load, Short-circuit, Over-heat multiple intelligent protection, protect your devices from overpower damage. Battery adapter also have added fuse holder and 30A fuse ensures you can use it safely
•Easy to Use: We combine the battery adapter and the voltage converter with 2 heat-resistant wires ＆ fuse holder, 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 Applicable: This Azocek step down converter suitable for various 12V devices, ideal for upgrade power tools, ride on toys, golf carts, car trucks, speaker, monitoring equipment, led strip light, work lights or robotics DIY etc. If you have any questions, please feel free to consult us

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$24.99

$29.99

-17%

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Kzreect

Kzreect Battery Adapter with Switch, Over-Discharge Protection, Compatible with Milwaukee 18V Battery,Converter for DIY Rc Car Toys Robotics and Truck, 12 AWG Wire, 1 Pack

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•New Upgrade Battery Adapter: Input voltage: 18V; Output voltage: 18V; Maximum current: 30A. In addition, it is equipped with 12WAG wires and terminals to meet your different usage needs
•With Switch & Indicator: It adopts the integrated design of switch and indicator light, which makes your operation more convenient, safe and controllable. In addition, battery adapter adopts ABS flame-retardant shell, as well as 12AWG wire, which is safer and suitable for most scenarios
•Multi-protection Function: Kzreect battery converter adapter has a built-in intelligent chip with over-current protection, short-circuit protection, low-voltage protection, over-discharge protection and other functions. Convenient to use, but also pay more attention to the protection of your battery and equipment
•Compatible with 18V Battery: Compatible battery models: 48-11-1820, 48-11-1828, 48-11-1835, 48-11-1837, 48-11-1850, etc. Kzreect battery adapters are high quality and fit snugly into the battery for easy installation and locking of the battery (Battery not included)
•Suitable for Various Scenarios: This Kzreect battery adapter has a maximum output current of 30A, which can turn the lithium battery into a mobile power source, you can use it freely both indoors and outdoors. It compatible with power wheel, remote control toys, work lights or robots to meet your various DIY needs
•NOTE: 1. When connecting external devices, please make sure the positive and negative poles are connected correctly; 2. This product is for output use only, do not connect the charger; 3. Please remove the battery when not in use

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$13.99

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Kzreect

Kzreect 18V to 12V Step-Down Converter Compatible with Milwaukee 18V Battery, DC 12V 20A 240W Voltage Reducer Regulator for Golf Cart RC Car LED Lights DIY Toys

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Compatible with 18V Battery: Perfectly compatible with 18V lithium batteries, including 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840 and more
•Step-Down Converter: Input Voltage: DC 18V-20V; Output Voltage: DC 12 V; Output Current: 20A; Power: 240W (Max). Cable wire: 14AWG
•High Quality: The buck is an aluminum alloy shell, which has the advantages of good heat dissipation, waterproof, dustproof and shockproof. In addition, the adapter housing is made of high quality ABS
•Protective Function Design: Kzreect step down converter with over-voltage, under-voltage, over-load, over-heat and short circuit protection, protect your devices and equipment from overpower damage
•Wide Application: Compatible with power wheel, golf cart, truck car, DIY toys, LED light, screen display, etc.

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$23.99

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Azocek

Azocek 2 Packs Power Wheel Adapter Compatible with Milwaukee 18V Battery Adapter Power Wheel Battery Converter Kit with Fuse & Switch & Wire Terminals & 12 AWG Wire for DIY RC Car Toys Robotics

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Better Safety: Our Azocek power wheel adapter design is upgraded with a fuse holder and switch, made of heat-resistant ABS material and 12AWG wire, which is more suitable for high-power applications, and improves safety and conductivity
•More Convenient: The Azocek battery adapter comes with wire terminals, 30A fuses, screws, and drywall anchors. Rich accessories to make your DIY work easier, and ideal for indoor and outdoor use! (Note: battery not included)
•Compatibility: Azocek adapter perfectly compatible with 18V lithium batteries, works with 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840, 48-11-1815 etc. Our battery adapter connector is well-design, snugly fit your battery, easy to install and remove(Note: battery not included)
•Widely Applicable: Use this Azocek battery adapter to power other devices. The max allowable current is 20A for 12AWG wires. You can safely upgrade your toy cars, Rc trucks, robots, work lights, etc. Enjoy your DIY
•Important Note: 1. This adapter is not a charger, it only outputs the voltage and power directly from your battery. 2. The red wire is connected to the positive terminal, and the black wire is connected to the negative terminal. 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 you don’t use it for a long time, please be sure to remove the battery from the adapter

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$14.99

$18.99

-21%

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KOEZEOI

KOEZEOI 1 Packs Power Wheel Adapter for Milwaukee M18 Battery Adapter 18V Power Wheel Battery Converter with Fuse & Switch & Wire Terminals 12AWG Wire for DIY Ride On Truck and Rc Toys

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•【Better Safety】Upgrade wiring protection function and a built-in switch to ensure you can easily turn on&off the battery, equipped with 30Amp fuses to protect battery devices from overpower damage. Battery adapter of ABS material and heat-resistant 12AWG silicone copper wire are configured for high-power applications for increased safety and conductivity
•【Compatibility】Compatible with Milwaukee M18 battery, work for 48-11-1850 / 48-11-1820 / 48-11-1860 / 48-11-1880 / 48-11-1840 and more
•【Easy to Use】Power wheel battery adapter gently slide in the battery groove then push adapter and lock securely. If you want to remove the adaptor from the battery, please press down the buckle of the battery, then remove it. The included wire terminals allow you to quickly connect wires. There are 2 screw holes on the adapter can be well fixed to the walls or DIY product
•【Suitable for Various Scenarios】Use this battery converter to power other devices. The maximum permissible current is 30A for 12AWG wires. Ideal for upgrade your Rc car toys, ride on trucks, power tools, electric fan, led strip light, work lights or robotics etc, enjoy the beauty of DIY
•【Package includes】1 pack power wheel adapter with fuse holder and 3 pack 30Amp fuse and 2 screw fasteners, 1 pack wiring terminal (Note: Battery NOT Included)
•【Note】1. This battery adapter is not a charger, it only outputs the voltage and power directly from your battery. 2. The red wire is connected to the positive terminal, and the black wire is connected to the negative terminal. 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

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$9.99

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Ecarke

Ecarke Battery Adapter Compatible with Milwaukee M18 18V Battery, Converts M-18 to V-18 for 18V Power Tools，for 48-11-2200 48-11-2230 Converter Power Tool

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Use With Milwaukee m-18 18-Volt Lithium-Ion battery. EX: for 48-11-1815,48-11-1850,48-11-1820,48-11-1840, 48-11-1815 Compact Batteries
•Easy to install,low standby power consumption, energy saving
•It has a USB port and can be charged for your phone and tablet (USB charging cable is not included)
•Top materials,high quality

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$18.59

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