Replace the battery, not the appliance: how to choose cordless home tech

A cordless vacuum, window cleaner, handheld vacuum or battery-powered kitchen tool is convenient until its battery loses capacity. That is when you discover whether you bought a repairable object or an appliance that must be replaced because one wearing component has failed.

Article 11 of the EU Batteries Regulation becomes applicable on 18 February 2027. As a general rule, new products placed on the EU market with portable batteries must be designed so the end user can remove and replace the battery. This does not magically retrofit appliances already at home, and it does not apply without exceptions to every product. Buyers can nevertheless start choosing today as if the appliance and its battery were components with different lifespans.

What does “removable” actually mean?

The requirement is not satisfied merely because the battery is physically reachable somewhere inside. Under the Regulation, end-user removability means the operation can be carried out with commercially available tools and without specialist or proprietary tools, heat or solvents. If a special tool is necessary, it must be supplied free of charge with the product.

Replacement must be possible without permanently damaging the appliance, and a compatible battery must restore its function. That distinction matters: a cell glued behind a casing may be technically accessible, yet still not reasonably replaceable by its owner.

Not every water-resistant appliance should be opened at home

Safety takes priority. For some medical products and “wet appliances”, such as electric toothbrushes or water flossers, replacement may be reserved for independent professionals where consumer disassembly would compromise safety or water resistance. On 14 July 2026, the European Commission adopted a delegated act proposing additional exemption categories, including certain wearable devices and electric toys. An exemption does not necessarily mean a permanently sealed battery: in many cases, the battery must still be replaceable by a professional.

Six questions to ask before buying

1. What is the exact battery type?

“Lithium-ion” is not enough. Ask for the part number, nominal voltage and capacity. A separately available, clearly identified battery is a better sign than an anonymous pack hidden inside the appliance.

2. Does it detach, or is it a service job?

A clip-on pack is the clearest solution, but a screwed cover is not automatically a problem. What matters is that the manufacturer explains the procedure and that replacement does not require heating adhesive, breaking a housing or cutting through warranty labels.

3. Can you buy the replacement today?

Look for an actual product page, price and part number, not just a sentence in a manual. Ask whether the same pack works across several products from the brand. A shared battery platform can reduce future costs and the number of redundant chargers.

4. What is the total replacement cost?

A cheap appliance can become expensive when the battery, mandatory service labour and shipping together approach the price of a new machine. Compare the purchase price plus one likely battery replacement, not only the shelf price.

5. What happens to the warranty?

Ask in writing whether user replacement affects the appliance warranty and which parts have separate warranty or legal-conformity coverage. Replaceability and the warranty process are not the same question.

6. Where does the old battery go?

A used lithium-ion battery is not household waste. Damaged or incorrectly handled cells can create a fire risk, so they should go to an authorised collection point or retailer take-back scheme. Easier removal supports safe collection as well as repair.

The largest capacity figure is not the best signal

A runtime claim on the box says little about long-term value. More important is whether the battery is identifiable, separately available and replaceable without damage, with clear instructions, service support and a take-back route.

When choosing between similar products, favour the manufacturer that already shows the spare battery, its price and the replacement method. The 2027 rule establishes a new minimum, not a purchasing guarantee. A good decision still depends on whether the battery described as replaceable is genuinely available, reasonably priced and safe to change.