Cordless Battery Adjustable Power Supply 5V–13V | 10A | Makita, Milwaukee, DeWalt & More

Cordless Battery Adjustable Power Supply – 5V to 13V, 10A

Turn your cordless tool battery into an adjustable power source.

Power more of your projects using the batteries you already own. The MARIO MAKER Adjustable Power Supply converts compatible 18V–21V battery input into an adjustable DC output from 5V to 13V, with a maximum output current of 10A.

Whether you’re powering 12V accessories, DIY electronics, or other compatible equipment, this compact unit gives you a practical and flexible power solution without needing a traditional mains power supply.

Choose your preferred battery platform and make your existing battery system even more useful.

Key Features

Adjustable Voltage: Easily adjust the output from 5V to 13V using the built-in rotary control.

Up to 10A Output: Suitable for compatible devices within the power supply’s voltage, current and power limits.

Real-Time LED Display: Check the output voltage directly on the integrated digital display.

Standard 12V Accessory Connection: Includes a female cigarette-lighter socket for compatible 12V accessories.

Quick-Connect Terminals: Convenient wire connections for DIY projects and custom setups.

Built-In On/Off Switch: Easily control the power supply.

Battery Protection: Built-in low-voltage protection automatically cuts off the output when the input battery voltage falls below approximately 14.4V.

Compact Design: A practical solution for portable power projects, workshops and custom electrical setups.

Choose Your Battery Platform

Available for the following battery systems:

Makita LXT 18V

Milwaukee M18

DeWalt XR 18V / 20V MAX

Bosch Professional 18V

Einhell Power X-Change 18V

Ozito 18V

CRAFTSMAN V20

Hitachi / HiKOKI 18V

Ryobi ONE+ 18V

Important: Select the correct battery platform when ordering. Battery compatibility depends on the selected adapter and battery model.

Technical Specifications

Input voltage: 15V–21V DC

Recommended battery platforms: Compatible 18V–21V power-tool batteries

Adjustable output voltage: 5V–13V DC

Output current: Up to 10A

Maximum output power: Depends on output voltage and current; up to approximately 130W at 13V and 10A only if supported by the unit

Efficiency: Manufacturer-rated at 95% or higher

Voltage display: Integrated LED digital display

Output connection: Female cigarette-lighter socket

Additional connection: Quick-connect wire terminals

Cable: Silicone-insulated wire, listed as 14 AWG

Cable length: Approximately 15cm according to the manufacturer’s specifications; verify the final supplied configuration

Housing: ABS plastic

Low-voltage cutoff: Approximately 14.4V input

Important Compatibility & Safety Information

This product is a DC power converter, not a battery charger. It does not charge batteries.

Before connecting your equipment, adjust the output voltage to the level required by your device. Confirm that your device supports the selected voltage and that its current and power requirements remain within the converter’s limits.

The maximum 10A rating does not mean every output voltage can deliver 10A continuously. Actual output capability depends on the converter’s specifications and operating conditions.

Use only with compatible batteries and equipment. Do not exceed the battery manufacturer’s limits or the converter’s rated input, output or power specifications.

MARIO MAKER — BE YOUR OWN MAKER.