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MYTHMyth or Fact · #12EP.153 · 24 s

Myth or Fact #12: "A charger left in the socket wastes lots of power" — MOSTLY MYTH

Cover of the lesson: Myth or Fact #12: "A charger left in the socket wastes lots of power" — MOSTLY MYTHComing to YouTube soon
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MOSTLY MYTHTHE VERDICT
// WHAT YOU WILL LEARN

MOSTLY MYTH: a modern phone charger with nothing attached uses under 0.1 W (well under 1 kWh a year); unplug old or cheap ones for safety, not savings.

// LESSON NOTES

Myth or fact: a charger left in the socket wastes lots of power? 🔌

We measured it with a plug-in power meter, no phone attached:
A modern phone charger uses under 0.1 W. ⚡ (The rules in the EU and USA say 0.1 W max.)

In a whole year: 0.1 W × 8,760 hours ≈ 0.88 kWh → about $0.15. 🪙
So: MOSTLY MYTH. ✅

BUT: old chargers used more, and cheap uncertified ones can get hot. 🔥 Unplug those — for safety, not savings.

Read the voiceover (transcript)
  1. A charger left plugged in wastes power. True?
  2. Let's measure it, with no phone attached.
  3. A modern charger uses under a tenth of a watt!
  4. How much in a whole year?
  5. Less than one kilowatt-hour: about fifteen cents!
  6. Mostly myth! But unplug old or cheap ones: they can get hot.
  7. Next: does switching a light on waste power? Follow for more!

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