Charger Safety

Fake phone chargers: the small plug-in risk that can start a serious fire

Phone chargers are used every day and often left plugged in for hours. A fake or poorly made charger can overheat, fail internally or expose users to electric shock risk.

Safety guidance

This TESC guidance page is designed to help households, landlords, agents and property managers recognise avoidable electrical risks before they become incidents.

Product safety is separate from an Electrical Installation Condition Report. An EICR assesses the fixed electrical installation, while plug-in equipment, chargers, extension leads and portable products can introduce additional risks after the installation itself has been inspected.

What to look for

Key issues, warning signs and safer practice.

Why fake chargers are risky

  • They may not provide safe separation between mains voltage and the low-voltage USB output.
  • Internal components may be too close together or poorly insulated.
  • Cheap plastics may soften, scorch or melt under heat.
  • The plug pins, fuse or casing may not meet UK safety expectations.
  • They may lack effective protection against overload or short circuit.

Warning signs

  • The charger becomes hot quickly or smells of burning plastic.
  • The casing is loose, cracked, rattling or badly finished.
  • The plug does not fit firmly into the socket.
  • The label is misspelled, vague or missing manufacturer details.
  • The product was unusually cheap or supplied without proper packaging.

Safer charging habits

  • Use chargers from reputable manufacturers and known retailers.
  • Avoid charging phones on beds, sofas or under pillows.
  • Unplug chargers that are not being used.
  • Do not use damaged cables, loose sockets or scorched adaptors.
  • Do not leave unknown chargers running unattended for long periods.

When electrical products should be taken out of use

Stop using an electrical product if it shows signs of overheating, melting, burning smells, loose connections, damaged cables, exposed parts, buzzing, cracking, smoke or repeated tripping. Do not keep testing a suspect product to see whether it happens again.

Where the concern relates to fixed wiring, sockets, consumer units, earthing, RCD protection or repeated circuit faults, the matter should be checked by a competent electrical contractor rather than treated as only a product issue.

Useful TESC links

Common questions

Yes. A poor-quality charger, damaged cable, overloaded adaptor or overheating device can create a fire risk.

No. A charger can appear to work while still having poor internal insulation, weak components or inadequate protection.

Landlords are not usually responsible for every tenant-owned product, but general electrical safety, safe sockets and clear safety information all help reduce property risk.

Electrical safety records matter

Product safety, fixed wiring safety and compliance records all work together. Use TESC resources to understand electrical risks, check EICR records and find registered providers where inspection or remedial work is needed.