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What can I do to protect my PC or laptop against power surges? (lightning strike)

General advice

Using a power strip with surge protection is a good practice for safeguarding your laptop and other high-value electronic devices from potential electrical damage. Several circumstances make using a surge protector particularly important:

  • Older house wiring: If you live in an older house with outdated wiring or insufficient grounding, your devices may be more susceptible to voltage fluctuations and electrical surges. A surge protector can help mitigate the risks associated with older wiring.
  • Lightning strikes: During thunderstorms, lightning strikes can cause power surges in the electrical grid, which may damage your laptop and other electronics. Using a surge protector can help shield your devices from lightning-induced surges.
  • Frequent power outages or voltage fluctuations: If you live in an area with frequent power outages or unstable voltage supply, your devices may be at a higher risk of damage from electrical surges when the power is restored. A surge protector can help protect your electronics in these situations.

In summary, it is generally a good idea to protect your laptop and other electronics with a power strip with surge protection, especially if you live in an older house, experience frequent power outages or voltage fluctuations, use expensive or sensitive equipment, or have multiple devices connected to the same outlet. Doing so can help you prevent costly damage and extend the lifespan of your devices.

Additional advice: ethernet cables and peripherals

Protecting your laptop or PC from power surges goes beyond just safeguarding the power supply or charger. Overvoltage caused by lightning strikes can impact any cable connected to your system, including Ethernet cables, HDMI, DisplayPort, docking stations, and audio devices or other external devices connected to the electrical grid.

  • Ensure all devices connected to your PC or laptop are protected with a surge-protected power strip whenever possible.
  • During or in anticipation of a thunderstorm, disconnect cables and peripherals from your device.
  • If you plan to leave your home for an extended period, consider preemptively disconnecting cables and peripherals to mitigate potential risks.

In conclusion, taking proactive measures to protect your laptop or PC, along with all connected peripherals, can significantly reduce the risk of damage caused by power surges and lightning strikes.