Skip to content Black Friday · ½ price on every bundle Our only deal this BFCM · ends Monday 30 Nov Milwaukee & Makita sold out in week 1 last yearFree shipping €90+ · VAT & duties paid

Free shipping over €90 · Prices in EUR, VAT & duties included

Free shipping €90+ · VAT & duties paid

Black Friday is on · ends Monday 30 Nov

½ price on every bundle.

Work hard. Camp easy. Pay half. Dropper, Booster, Rapid, Replenisher and more, matched to the 18V tool batteries you already own. Our only deal this BFCM.

4.9 from 1,723 reviews 30-day returns 2-year warranty

Which tool batteries do you run?

We will only show gear that clicks straight onto them.

Run AEG, HiKOKI, Stanley or WORX?See every brand

Powering Europe’s sites, vans and campsites

  • VAT & duties paidEvery EU order ships with VAT and import duties already paid. No customs charges at your door.
  • Fits the batteries you already ownDeWalt XR, Makita LXT, Milwaukee M18, Einhell Power X-Change, Bosch and more.
  • Tracked to BelgiumDelivered in 6 to 12 business days, with 30-day returns and a 2-year warranty.

Loved by campers, van travellers & tradespeople

The Volt Dropper

Our best seller

The Volt Dropper

Turns the 18V tool batteries you already own into steady 12V for fridges, fans, lights and camp gear. Brand-matched fit, with 4-way battery protection.

  • Adjustable 5 to 13V with a live LED readout
  • Low-voltage cut-off protects your €300 batteries
  • Fits Makita, Milwaukee, DeWalt, Ryobi, Ozito and more
  • Runs a 40L fridge for around 5 to 7 hours per 5Ah battery

Clip on. Switch on. That’s it.

1Pick your brand

Choose the Volt made for the tool batteries you already own. Makita, Milwaukee, DeWalt, Ryobi and more.

2Clip on a battery

Slide your 18V battery on, just like a tool. No wiring, no installation, no new battery system to charge.

3Power your gear

Plug in your fridge, lights, laptop or phone. Built-in protection stops before your battery runs too low.

Will it run your gear?

Pick what you are powering and your battery size. The runtime calculator shows how many hours you will get, and shows its maths.

Try the runtime calculator

What the €20 adapters leave out

Volt Dropper
Cheap adapters
Low-voltage battery cut-off
Built in
Usually none
Over-current, short & thermal protection
All three
Hit and miss
Adjustable output with live readout
5 to 13V
Fixed, unverified
Warranty & returns
2 years + 30 days
Good luck
Real human support
Real support from real people
Overseas seller

Rated 4.9 out of 5 by our customers

1,723 verified reviews across the Volt range.

Read the reviews

Out there with our customers

@maxvoltagestore on Instagram
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Your tool batteries can do more than drill.

Find the Volt that fits your batteries and your gear, shipped tracked with VAT and duties paid to your door anywhere in the EU.