Makita 18V vs 40V Vacuum: Which Should You Buy in the UK?

Short answer: choose Makita 18V LXT if you already own 18V tools and want a light, mobile vacuum for home and light-trade clean-up; choose 40V XGT only if you are building on that newer, higher-output platform for sustained heavy extraction. For most UK buyers cleaning up after DIY or finishing work, 18V is the practical pick.

It is really a battery-platform decision

18V LXT and 40V XGT are separate battery systems — the packs are not interchangeable. So the honest first question is not "which is more powerful" but "which batteries do I already own or want to standardise on". Buying a 40V vacuum means committing to 40V chargers and packs even if the rest of your kit is 18V.

On the 18V side, the Makita DVC750LZ is a brushless L-Class wet/dry unit: 7.5 L dry / 4.5 L wet, up to 6.7 kPa sealed suction and about 30 minutes on High from a 5.0Ah pack. It is light — roughly 4.3–4.6 kg without a battery — which is the whole appeal for carrying it upstairs or between cars.

Where 40V earns its place

Higher-voltage XGT tools generally deliver more sustained power and longer runtime under load, which matters for continuous, heavy dust extraction on bigger sites. If you are running large tools all day and want the headroom, XGT is designed for that. But it is heavier and more expensive, and for a weekend renovation or a mobile finishing round that capacity mostly sits unused.

Runtime, weight and cost in the real world

For intermittent clean-up — drill dust, offcuts, the odd spill — 18V runtime is rarely the limiting factor, and the lighter body is genuinely nicer to handle. For hours of non-stop extraction, no cordless class beats a mains vac, so if that is your pattern, compare against a corded unit in our best workshop vacuum guide before spending on 40V.

Which should you buy?

Stay on 18V LXT if your existing tools are 18V and your cleaning is mobile and intermittent — you keep one battery system and a lighter machine. Move to 40V XGT only if you are deliberately standardising on that platform for heavier, longer work. If your honest use is occasional home clean-up, the 18V DVC750LZ at £409.10 including VAT is the sensible, battery-sharing choice.

Frequently Asked Questions

Should I buy a Makita 18V or 40V vacuum?

Buy 18V LXT if you already own 18V tools and want a light, mobile vacuum for home and light-trade clean-up. Choose 40V XGT only if you are building on that platform for sustained heavy extraction, as it is heavier and costlier.

Are Makita 18V and 40V batteries interchangeable?

No. LXT (18V) and XGT (40V) are separate systems with different batteries and chargers. Pick the vacuum that matches the platform you own or want to standardise on.

Is 18V powerful enough for workshop dust?

For intermittent clean-up and finishing dust, yes — the DVC750LZ offers up to 6.7 kPa sealed suction and L-Class filtration. For hours of continuous heavy extraction, a mains vac still outperforms any cordless class.