Max Voltage Store

Put your Tool Batteries to Work!

Don't purchase a second battery setup! Power your 12V Gear on-the-go using the power of your tool batteries!

The Volt Dropper converts 18-20V Batteries to 12V! Allowing you to power your 12V camping gear, lights, Fridges & Freezers etc!

Exclusive product to the Max Voltage Store!

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Converts 18V tool Battery > 12V Power 🔋

Use your existing Makita, Milwaukee, or DeWalt, Ozito or Bosch 18V–20V batteries to power 12V gear like fridges, lights, and camp appliances. No need for deep-cycle setups—just snap in a battery and go. Perfect for tradies, campers, and 4WDers on the move.

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All Weekend Power⚡

Most small/medium car fridges draw about 1.5 amp-hour at 12V. A fully charged 12Ah tool battery can power your fridge for around 12 hours under average conditions—perfect for weekend trips, overnight stops, or when you want to keep your food and drinks chilled without idling your vehicle. Even better if you have a second or third battery handy!

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Smart Voltage Control & Built-In Safety

Adjust output voltage from 5V to 13V to suit your gear. The digital LED readout gives live feedback, while onboard protections shield your devices from overload, low voltage, short circuits, and no-load conditions—so you can plug in with peace of mind.

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Shop Accessories

Enhance your Volt Dropper with our premium accessories, designed for seamless compatibility and superior performance. Whether you're looking for the Makita Double Adapter to double your battery capacity or other essential add-ons, our accessories are built to take your outdoor adventures and tool usage to the next level. Upgrade today and make the most of your Volt Dropper setup!

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