The Volt Dropper - Convert 18V to 12V!

#1 Selling Volt Dropper

$99.95 AUD

~~$149.95 AUD~~ $99.95 AUD

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Taxes included. Shipping calculated at checkout.

No more warm drinks or dead gear off-grid. The Volt Dropper powers your 12V essentials straight from your 18V tool battery. No wiring, no idling, just plug in and go.

Runtimes are based off of a 12Ah, 18V tool battery

40L Car Fridge

15hr Runtime
Starlink Mini

15hr runtime
Camping Lights

24+ hours runtime
12V Water Pump

10–15 hrs runtime

Output Plug Type 12V Cigarette Socket

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The Volt Dropper – Run Your 12V Gear Straight from Your Power Tool Battery

No more warm drinks or dead lights when you're off the grid. The Volt Dropper lets you run 12V gear — like your car fridge, LED lights, air pump or camp fans — directly from your 18V tool battery. No hardwiring. No vehicle idling. Just plug in and power up.

Designed and tested tough for Australian conditions, by Aussies who know what it’s like to camp, tour, and live outdoors.

The Volt Dropper Product Manual

Technical Details

Input Voltage	DC (15–20V lithium-ion tool batteries)
Output	Adjustable 5–13V DC (default 13V)(For best runtimes on 12V appliances keep this at the maximum output voltage ~13V)
Max Current output	10A (total load) ⚠️DO NOT EXCEED 10A or it may result in overheating and cause the outer plastic shell to melt.

See Full Details

Safety Features

Auto shutoff
Overcurrent protection
Low voltage cutoff
Short circuit protection
Overload shutdown

FAQs

Which batteries are compatible?

The Volt Dropper is available in versions to suit popular 18V platforms, including Makita, Milwaukee, DeWalt, Ryobi, Ozito, Bosch (GBA & PBA), AEG, HiKOKI, Stanley, and Black & Decker. Just choose the model that matches your existing tools.
How much power can it handle?

It can deliver up to 10 amps, which is plenty for running most 12V gear like fridges, compressors, lights, and camp fans.
Do I need to install or wire anything?

No. There’s no hardwiring or setup required. Just plug in your tool battery, connect your 12V device, and you’re good to go.
How long will it run a car fridge?

Most 12V fridges draw around 1-2A per hour. So, a 6Ah(18V tool battery) battery should give you around 5-8 hours of runtime depending on temperature, fridge size, how often you open it, and how full it is.
How tough are the cables?

The wiring is double-protected with PVC sleeving and a reinforced plug sheath. Built to handle knocks, drags, and whatever your campsite throws at it.
How long does delivery take?

Australian Orders

All orders are shipped from our warehouse in Sydney. We aim to dispatch within 1–2 business days, and tracking is provided with every order.

Standard delivery takes 2–6 business days, depending on your location.
🌍 International Orders

Orders shipped outside Australia may be subject to import duties, taxes, and customs fees charged by the destination country. These are not included in the item price or shipping cost and are the buyer’s responsibility upon delivery.
Delivery times Estimate using Australia Post Standard International Air Freight:
New Zealand - 4-7 business day
UK & Ireland - 4-7 business days
USA - 5-9 business days
Canada - 5-9 business days
Do I need to pay customs or import fees?

Orders shipped outside Australia may be subject to import duties, taxes, and customs fees charged by the destination country. These are not included in the item price or shipping cost and are the buyer’s responsibility upon delivery.

Read all FAQs How to install

View full details

The Volt Dropper runs your 12V gear straight from your tool battery

No more warm drinks or dead lights when you're off the grid.

The Volt Dropper lets you run 12V gear like your car fridge, LED lights, air pump or camp fans directly from your 18V tool battery. No hardwiring. No vehicle idling. Just plug in and power up. It’s built tough for Australian conditions and designed by Aussies who know what it’s like to camp, tour, and live outdoors.

The Volt Dropper is proudly designed & tested in Australia, made to handle red dust, salt air, corrugations, and hot weather without skipping a beat. This product is not affiliated with or endorsed by Makita, Dewalt, Milwaukee, Bosch, Einhell or Ozito etc. All trademarks are property of their respective owners.

Keep your 12V fridge running for up to 12 hours+ on a single 12Ah battery — no need for ice, no need to leave the car running. Just pop in a drill battery and enjoy cold drinks, chilled bait, or a working camp light — anywhere you go.

Ideal for Camping, Fishing, Touring & More

Beach trips
Bush camping
Fishing
A round of golf
4WD touring
BBQs in the park

Frequently Asked Questions

Which batteries are compatible?

The Volt Dropper is available in versions to suit popular 18V platforms, including Makita, Milwaukee, DeWalt, Ryobi, Ozito, Bosch (GBA & PBA), AEG, HiKOKI, Stanley, and Black & Decker. Just choose the model that matches your existing tools.
How much power can it handle?

It can deliver up to 10 amps, which is plenty for running most 12V gear like fridges, compressors, lights, and camp fans.
Do I need to install or wire anything?

No. There’s no hardwiring or setup required. Just plug in your tool battery, connect your 12V device, and you’re good to go.
How long will it run a car fridge?

Most 12V fridges draw around 1-2A per hour. So, a 6Ah(18V tool battery) battery should give you around 5-8 hours of runtime depending on temperature, fridge size, how often you open it, and how full it is.
How tough are the cables?

The wiring is double-protected with PVC sleeving and a reinforced plug sheath. Built to handle knocks, drags, and whatever your campsite throws at it.
How long does delivery take?

Australian Orders

All orders are shipped from our warehouse in Sydney. We aim to dispatch within 1–2 business days, and tracking is provided with every order.

Standard delivery takes 2–6 business days, depending on your location.
🌍 International Orders

Orders shipped outside Australia may be subject to import duties, taxes, and customs fees charged by the destination country. These are not included in the item price or shipping cost and are the buyer’s responsibility upon delivery.
Delivery times Estimate using Australia Post Standard International Air Freight:
New Zealand - 4-7 business day
UK & Ireland - 4-7 business days
USA - 5-9 business days
Canada - 5-9 business days
Do I need to pay customs or import fees?

Orders shipped outside Australia may be subject to import duties, taxes, and customs fees charged by the destination country. These are not included in the item price or shipping cost and are the buyer’s responsibility upon delivery.
Can I adjust the voltage output?

Yes. You can dial it in from 5V up to 13V, depending on what you're powering. Set it and forget it.
Is it safe for electronics?
Absolutely. It’s got built-in protection against:
- OverloadOver-current
- Low voltage
- Short circuits
- No-load operation
So your gear’s protected even in tough conditions.
What kind of plugs does it have?

You get to choose a 50A Anderson-style plug (with waterproof cap), for high-draw, rugged setups or a 12V cigarette socket that’s perfect for plugging in fridges, pumps, lights and standard car gear.
Can I see what voltage it’s outputting?

Sure can. There’s a digital LED display that shows your live output voltage, so you always know what’s going on.

Show All FAQs

What Max Voltage users are saying

Convert 18V to 12V!

The Volt Dropper

Simple on the outside, powerful underneath, the Volt Dropper is designed so you can plug in and get going without second-guessing anything. Every feature is there to make powering your campsite easier, safer, and more reliable, so you’re not stuck fiddling with gear when you should be enjoying your trip.

Convert 18V to 12V!

The Volt Dropper

Simple on the outside, powerful underneath, the Volt Dropper is designed so you can plug in and get going without second-guessing anything. Every feature is there to make powering your campsite easier, safer, and more reliable, so you’re not stuck fiddling with gear when you should be enjoying your trip.

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Fits in your glovebox. Weighs less than 250g

Small enough to chuck in your glovebox, centre console, or tool bag — and you won’t even notice it’s there. No bulky battery packs, no wasted space. Just grab it when you need it and go.
02
Car Port

Already own tool batteries? Perfect. The Volt Dropper works with a wide range of popular 18V platforms, so you can use what you’ve already got — no need to buy into another system.
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A massive 10A, 12V Output

Plenty of grunt to run your essential gear. Fridges, lights, fans, pumps — no worries. Built to deliver consistent 12V power without dropping off when you need it most.

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The Volt Dropper is compatible with

All logos are registered trademarks of their respective owners. This product is not affiliated with or endorsed by those brands.

How it works

Step 01

Insert your battery

Slide in your compatible 18–20V lithium-ion tool battery until it clicks securely into place.

Step 02

Plug in your gear

Connect your 12V device to the output connector, whether that’s the Anderson plug or 12V cigarette socket.

Step 03

Set your voltage

Turn the voltage control up to maximum, then check the LED display. It should read around 12.5–13V.

Step 04

Fine-tune if needed

If your setup requires it, adjust the voltage slowly and check the display as you go until it’s where you need it.

Step 05

Power up

Switch on your device and you’re good to go.

The Volt Dropper - Convert 18V to 12V!

Technical details

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The Volt Dropper Product Manual

General

Input Voltage

DC (15–20V lithium-ion tool batteries)

Output

Adjustable 5–13V DC (default 13V)(For best runtimes on 12V appliances keep this at the maximum output voltage ~13V)

Max Current output

10A (total load) ⚠️DO NOT EXCEED 10A or it may result in overheating and cause the outer plastic shell to melt.

Efficiency

18V-12V conversion efficiency

Output Display

Digital LED readout (real-time output voltage)

Operating Environment

-10°C to 45°C, dry environments only

Protection

Overload, over-current, low-voltage cutoff, short circuit, no-load auto-off
Intended Use

Running 12V DC appliances

Portable power where a vehicle or fixed battery isn't available.

Portable fridges

Running 12V DC portable fridges and coolers.

LED lighting

Low-draw 12V lighting setups.

Fans & air pumps

12V fans and small air pumps.
Not Suitable For

240V AC appliances

Kettles, coffee machines, heaters, power tools.

High-draw devices

Anything requiring more than 10A continuous.

Wet environments

Do not use in rain or allow water into connectors.

Long-term storage

Not for leaving batteries attached between uses.

Charging - Not suitable for charging tool batteries

Attempting this may cause damage to the internal circiut board
Safety

12V DC only

Never connect 240V AC devices.

10A maximum

Exceeding load may cause shutdown or overheating.

Keep dry

Do not use in rain or allow water into connectors.

Remove battery after use

Do not store with battery attached.
Protection Features

Low-voltage cutoff

Protects tool batteries (~15V input threshold)

Over-current & overload shutdown

Automatically cuts power under excess load

Short-circuit protection

Safeguards against wiring faults.

No-load auto-off

Powers down automatically when nothing is connected.

What devices can I power up?

Popular Setups

These are the everyday essentials most people want powered on a trip. Think cold food, charged phones, and a campsite that just works without turning things off to make it last.

Compatible Devices & Typical Runtimes

40–60L Car Fridge

8–15 hrs runtime
Starlink Standard Kit

4–8 hrs runtime
Water Pump (12V)

10–15 hrs runtime
LED Camping Lights

20+ hrs runtime
12V Fan

10–20 hrs runtime
Phone Charging

Multiple charges

Worksite & Tradie Gear

Perfect for tradies or jobs where you need reliable, portable power without dragging around heavy equipment. Ideal for remote work, quick jobs, or mobile setups.

Compatible Devices & Typical Runtimes

12V Water Pump

10–15 hrs runtime
LED Work Lights

15–25 hrs runtime
Device Charging (Phone/Tablet)

All day use

Boating & Fishing

Out on the water, power matters even more. The Volt Dropper helps keep the important gear running without risking your main battery or cutting your trip short.

Compatible Devices & Typical Runtimes

Fish Finder / Sounder

15–25 hrs runtime
Live Bait Pump

10–15 hrs runtime
LED Deck Lights

20+ hrs runtime
GPS / Phone Charging

Multiple charges

Camping Essentials

This is where comfort meets convenience. From lighting up your campsite to staying cool and entertained, you can run the gear that makes the trip better.

Compatible Devices & Typical Runtimes

LED Camp Lights

20+ hrs runtime
12V Fan

10–20 hrs runtime
Bluetooth Speaker

15–30 hrs runtime
Phone Charging

Multiple charges

Where can I use it?

Camping & 4WD Setup

Keep your essentials running off the batteries you already own, no dual battery system needed.

Compatible Devices & Typical Runtimes

15-30L Car Fridge

12–20 hrs runtime
LED Camping Lights

20+ hrs runtime
12V Fan

10–20 hrs runtime
Phone Charging

Multiple charges
Bluetooth Speaker

15–30 hrs runtime

Day Trips & Beach Setups

Keep things cold, charged, and running wherever you pull up.

Compatible Devices & Typical Runtimes

15-30L Car Fridge

12–20 hrs runtime
Bluetooth Speaker

15–30 hrs runtime
Camera Gear

Multiple charges
Portable Shower Pump

10–15 hrs runtime

Boating & Fishing Trips

Keep your setup running on the water without needing a full marine battery system.

Compatible Devices & Typical Runtimes

Fish Finder / Sounder

15–25 hrs runtime
Live Bait Pump

10–15 hrs runtime
LED Deck Lights

20+ hrs runtime
GPS / Phone Charging

Multiple charges

Overnight Stops & Road Trips

Quick, no-fuss power for overnight stays without setting up a full system.

Compatible Devices & Typical Runtimes

15-30L Car Fridge

12–20 hrs runtime
12V Fan

10–20 hrs runtime
Phone Charging

Multiple charges
Interior Lights

20+ hrs runtime

Remote Work & Off-Grid Internet

Stay connected anywhere and power your internet setup using the batteries you already own.

Compatible Devices & Typical Runtimes

Starlink Standard Kit

4–8 hrs runtime
WiFi Router

10–20 hrs runtime
Laptop Charging

Multiple charges
Phone Charging

Multiple charges

Max voltage gives you the maximum possible charge


Max Voltage	Other Brands
Costs less than $100	Generally costs over $1000
Plug & Play with Your Tool Batteries	Requires DIY wiring or bulky battery setups
Compact, lightweight & built for the glovebox	Heavy battery boxes or oversized power stations
Use the batteries you already own	Forces you into expensive dual battery systems
Set it up in seconds	Time-consuming installs and messy wiring
No bulky setup, just grab and go	Heavy, overcomplicated gear

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The Volt Dropper - Convert 18V to 12V!