Cordless Hoover Not Charging: What to Check
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If your cordless hoover is not charging, start with the simple things: a working socket, the charger firmly plugged into the hoover or dock, and clean contacts. Then check temperature, because most lithium-ion batteries refuse to charge when too hot or too cold. If those are fine, the charger or battery has probably failed, and both can usually be replaced.
Quick answer: Test the socket with another appliance → reseat every connection (charger lead, dock, battery) → wipe the contacts with a dry cloth → let the hoover sit at room temperature for an hour → try charging directly rather than through the dock → watch the lights. No lights or a fault light after all that usually means a faulty charger or battery.
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Safety first
Watch out: Stop and unplug immediately if the battery is swollen, cracked, leaking, very hot to touch, or smells of burning or chemicals. Do not try to charge it again, do not puncture it and do not put it in household rubbish. Move it somewhere non-flammable, away from anything that could catch fire, and contact the manufacturer. Never use a charger that is not designed for your model.
Step-by-step checks
- Test the socket. Plug a lamp or phone charger into the same socket. Avoid extension leads and timer plugs for this test.
- Check the charger lead. Look for damage, kinks, bent pins or a loose plug. Many chargers have an LED on the power brick; if it is off, the charger may have failed.
- Reseat every connection. Unplug and firmly reconnect the charger to the wall and to the hoover or dock. On wall-mounted docks, make sure the hoover is pushed fully into the cradle; it is common for it to rest just short of the contacts.
- Remove and refit the battery if it is removable. Click-in batteries (Dyson V11 onwards, many Shark, Vax ONEPWR, Samsung) can sit slightly loose. On screw-in batteries, check the screws are tight.
- Clean the contacts. With the charger unplugged, wipe the metal contacts on the dock, hoover and battery with a dry cloth or a dry cotton bud. Dust and grime here are a common cause of intermittent charging.
- Check the temperature. Lithium-ion batteries normally will not charge if they are too cold (a garage in winter) or too hot (straight after a long boost session or in a hot conservatory). Bring the hoover to room temperature and leave it for an hour.
- Bypass the dock. If your model allows charging the handheld or battery directly (many do), try that. If it charges direct but not on the dock, the dock or its cable is the problem.
- Watch the lights. Most models show a charging light or animation. Note exactly what the lights do; it helps the manufacturer diagnose the fault. See the table below and your manual.
- Leave it longer. A battery that has been fully flat for weeks may take a while to show any sign of charging. Give it several hours.
- Contact the manufacturer if none of the above works, quoting your model and serial number.
Symptom, cause, fix
| Symptom | Likely cause | Fix |
|---|---|---|
| No lights at all | Dead socket, failed charger or poor connection | Test socket; reseat; try a known-good genuine charger |
| Charges direct, not on dock | Dock contacts dirty or dock cable faulty | Clean contacts; check dock cable; replace dock or cable |
| Starts charging then stops | Battery too hot or too cold | Leave at room temperature for an hour and retry |
| Fault light (often red or amber) while charging | Temperature protection, or battery/charger fault | Rest at room temperature; if it persists, check manual and contact manufacturer |
| Shows full but runs only a few minutes | Worn battery (capacity loss with age) | Replace battery; see battery replacement guide |
| Charges only when cable is held at an angle | Damaged cable or charging port | Stop using that charger; replace it |
| Battery swollen or very hot | Damaged cell | Stop immediately; do not charge; contact manufacturer |
Understanding charging lights
Charging lights vary between brands and even between models from the same brand, so treat the following as general patterns and confirm with your manual.
- Dyson: on older V-series models, a light shows while charging and goes out or turns solid when full. Dyson's support pages describe a flashing red light during charging as a battery fault that needs their helpline, and an amber light on some models as a temporary temperature issue. LCD models (V11, V15, Gen5) show charge status on screen. More in our Dyson troubleshooting guide.
- Shark: battery gauge lights typically flash in sequence while charging and turn solid when full. Steps for Shark-specific behaviour, including Clean & Empty docks, are in our Shark troubleshooting guide.
- Others (Vax, Samsung, LG, Gtech): look up the light table in your manual, usually downloadable from the brand's UK support site.
Is it the charger or the battery?
If you can borrow a genuine charger for the same model, that is the quickest test. If the hoover charges with the borrowed charger, replace yours. If not, the battery is the likely suspect. Batteries are consumables: after several years and a few hundred cycles they lose capacity, and eventually a cell can fail outright. Our battery life guide explains normal ageing.
Replacement chargers and batteries are widely sold. Genuine parts are the safer choice; cheap unbranded chargers and batteries may lack proper protection circuitry.
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Warranty and your rights
Battery faults are a common warranty claim. Many brands cover the battery for the full warranty period, but check your own terms. If the hoover is less than six months old, the Consumer Rights Act 2015 generally presumes a fault was present at purchase. Our warranty guide explains how to claim.
Preventing charging problems
- Store and charge at room temperature, not in a cold garage or a hot conservatory. See how to store a cordless hoover.
- Let the battery cool for a while after heavy boost use before charging.
- Keep contacts dust-free.
- Leaving it on the dock is fine for most modern models; see can you leave a cordless hoover on charge.
FAQs
How long should a cordless hoover take to charge?
Commonly around 3–5 hours from flat, depending on battery size and charger. Some models charge faster with a quick charger. Check your manual for the stated time.
Can I use a phone or laptop charger?
No. Hoover chargers have specific voltage and current ratings. Using the wrong one can damage the battery or create a fire risk. Use the genuine charger or a replacement made for your model.
Why won't my hoover charge in the garage?
Most lithium-ion batteries are protected against charging in cold conditions because it can damage the cells. Bring it indoors to room temperature and try again.
Is a third-party battery safe?
Some are, many are unknown quantities. Genuine batteries come with the manufacturer's safety design and often a warranty. If you buy third-party, choose a reputable seller with clear UK safety marking and returns.