# How to charge a cordless vacuum and how long it takes

Source: https://wandandfloor.co.uk/blog/how-to-charge-a-cordless-vacuum
Published: 2026-10-12
Publisher: Wand and Floor

**In short:** Charge a cordless vacuum by connecting it to its own charger, either on the wall dock, a floor stand or directly to the handle, or by removing the battery and charging it separately on models that allow it. Full charges typically take around 3.5 to 5 hours depending on the model. Use the original charger and store it indoors at room temperature.

Charging a cordless vacuum sounds obvious, but the details vary between brands and they affect how long the battery lasts. Some machines charge on a wall dock, some on a floor stand, some through a cable straight into the handle, and some let you remove the battery and charge it in any socket. This guide explains each method, gives typical charge times from UK listings, and covers the habits that help a battery last. Always check your own manual, as charge times and indicator lights vary between models.

## The main charging methods

Most cordless vacuums use one of these methods, and some offer more than one.

| Method | How it works | Typical brands |
| --- | --- | --- |
| Wall dock | Hang the vacuum on a dock fixed to the wall with a charger plugged in | Dyson and others |
| Floor stand or dock | Stand the vacuum in a base; some also empty the bin | Samsung, Dreame, Shark docks |
| Cable to handle | Plug the charger straight into the vacuum | Most brands as an option |
| Battery off the machine | Remove the pack and charge it on its own | Shark, Bosch, Vax, Samsung |

Charging methods

## Typical charge times

Charge times come from Amazon UK listings or maker figures and are for a full charge from flat. Charging from part-full is quicker.

| Model | Full charge (approx.) |
| --- | --- |
| Dyson V8 Origin | 5 hours (listing) |
| Dyson V8 Advanced | 4.5 hours (listing) |
| Dyson V10 Animal | 3.5 hours (listing) |
| Dyson V15 Detect | Around 4.5 hours (Dyson figure) |
| Shark Stratos Pet Pro | 4 hours (listing) |
| Dreame Z20 | 4 hours (listing) |

Charge times

## How to charge on a wall dock

A wall dock holds the vacuum and charges it at the same time. Fix the dock near a socket, at a height where the vacuum's head clears the floor, and use the screws in the box. Plug the charger in and route the cable through the dock's channel.

When you hang the vacuum on the dock, check that the charging contacts line up and that the battery lights come on. If they do not, lift it off and hang it again. Our [stick vacuum storage guide](https://wandandfloor.co.uk/blog/how-to-store-a-stick-vacuum) covers fixing a dock safely.

1. Fix the dock near a socket with the screws supplied.
2. Plug in the charger and route the cable.
3. Hang the vacuum so the contacts meet.
4. Check the battery lights come on.

## Charging the battery off the machine

Many Shark, Bosch, Vax and Samsung sticks have removable batteries. You can press a release, take the battery out and charge it in a socket elsewhere, which lets you keep the vacuum in a cupboard with no socket. If you have a second battery, charge one while you clean with the other.

Use only the charger that came with the vacuum or a genuine replacement. Third-party chargers may not match the battery's voltage or safety features.

[Sticks with swappable batteries](https://wandandfloor.co.uk/best/best-cordless-vacuums-with-swappable-batteries)

## Habits that help the battery last

Lithium-ion batteries wear with time and use, but some habits slow this down. Charge at room temperature, not in a cold garage or next to a radiator. Avoid leaving the battery completely flat for weeks. Use eco mode for everyday cleaning and save Boost for stubborn spots.

Keeping filters and the brush bar clean also helps, because a clogged machine draws more power. Leaving the vacuum on its dock is generally fine, as modern chargers stop charging when the battery is full; follow your manual's advice. Our [battery lifespan article](https://wandandfloor.co.uk/blog/how-long-do-cordless-vacuums-last) covers the rest.

Note: Do not charge a battery that is damaged, swollen or very hot. Charge on a hard surface away from flammable materials, and stop using a charger with a damaged cable.

## When charging goes wrong

If the vacuum will not charge, check the socket, the charger lights, the cable and the contacts on the dock and battery. Dust on the contacts is a common cause. If the battery charges but runs for only a few minutes, it may be worn.

Our [not charging article](https://wandandfloor.co.uk/blog/cordless-vacuum-not-charging) works through the checks in order, and our [battery energy calculator](https://wandandfloor.co.uk/tools/battery-energy-calculator) shows how much electricity a charge uses.

## Frequently asked questions

**How long does a Dyson V15 take to charge?** Dyson gives around 4.5 hours for a full charge from flat.

**How long does a Shark cordless take to charge?** The Shark Stratos Pet Pro listing gives 4 hours. Other models vary; check your manual.

**Can I leave my cordless vacuum on charge all the time?** Modern chargers stop when the battery is full, so leaving it on the dock is generally fine. Follow your manual.

**Should I charge a new cordless vacuum before first use?** Yes. Charge it fully before the first clean.

## Buying guides on this topic

- https://wandandfloor.co.uk/best/best-cordless-vacuums-with-swappable-batteries
- https://wandandfloor.co.uk/best/best-long-runtime-cordless-vacuums
- https://wandandfloor.co.uk/best/best-cordless-vacuum-cleaners