Symptoms
- Visible exposed wire or torn insulation on the cable
- Charging only works when the cable is bent a certain way
- Cable feels warm along a damaged section
- Cracking or splitting near the connector or brick
Likely causes
- CommonRepeated bending and coiling wearing through the insulationCables usually fail first at stress points near the connectors.
- CommonPet chewing or accidental physical damageA common and often overlooked cause of sudden cable damage.
- PossibleLow-quality cable material breaking down faster than expectedCheaper or non-original cables often have thinner, less durable insulation.
- PossibleCable pulled tight around sharp furniture edges over timeSharp bends accelerate wear at a single point.
What to do
- Stop using any cable with exposed copper wire visible through the insulation.
- Inspect the full length, paying close attention to both ends where bending happens most.
- If only the insulation is worn but wire isn't exposed, avoid further bending at that spot and plan to replace it soon.
- Do not repair exposed wiring with tape as a long-term fix; treat it as replace-only for safety.
- Buy a replacement cable rated for your laptop's charging wattage, not just any generic charging cable.
- Store the new cable loosely coiled rather than tightly wound to extend its life.
Tools and parts
- None required
Replacement laptop charging cableSearch: “[laptop brand model] charging cable replacement wattage”
When to call a pro
No professional repair needed for a cable, just replacement; if the laptop's port itself was damaged by a bad cable, that would need a technician.
Safety
Use caution
Exposed wiring on a charging cable is a shock and fire risk; stop using it immediately rather than taping it or continuing carefully.