Three Devices You Should Never Unplug: Why Constant Power Matters More Than You Think

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Many households routinely switch off electronic devices at night to save energy. In most cases, that’s harmless — but not always. Some devices rely on a continuous power supply to function properly, and unplugging them can lead to malfunctions, higher costs, or even long‑term damage.

Router: The Silent Backbone of Your Digital Life

Takeaway: A router’s low energy use is rarely worth the connectivity problems caused by frequent unplugging.

Routers manage internet access, streaming, smart home systems, and countless background processes. While it may seem sensible to disconnect them overnight, repeated power cycles can cause:

Connection drops — Devices may need to reconnect or resync after every restart.
Lost settings — Some routers reset certain parameters when powered off too often.
Service interruptions — Smart home devices, cloud backups, and scheduled updates may fail.

Given that routers typically consume only a few watts, the savings are minimal compared to the inconvenience.

Inkjet Printers: Sensitive to Shutdowns

Takeaway: Unplugging an inkjet printer often costs more in ink and repairs than it saves in electricity.

Inkjet printers perform automatic maintenance cycles — especially after being switched back on. Frequent unplugging triggers:

Automatic cleaning cycles that use up ink even when you’re not printing.
Dried-out nozzles if the printer sits without power for too long.
Clogged print heads, which can require expensive servicing.

Standby consumption is usually very low, making continuous power the cheaper long-term option.

Takeaway: OLED screens need standby power to prevent image retention and maintain picture quality.

Even when switched off via remote control, OLED TVs continue running essential background processes:

Pixel refresh cycles that prevent burn-in
Automatic calibration to maintain uniform brightness
Image optimization routines that run after shutdown

Disconnecting the TV from power interrupts these tasks. Over time, this can lead to:

Visible image retention
Uneven brightness across the screen
Permanent display artifacts

Manufacturers recommend using the remote control to switch off the TV and avoiding frequent physical unplugging.

Unplugging devices can save energy — but only when the device is designed for it. Routers, inkjet printers, and OLED TVs rely on continuous power to maintain performance and prevent damage. Their standby consumption is typically low, while the potential costs of interruptions are high.