Constantly being “on” (even with no load) causes slow wear on internal components. Heat buildup, even minimal, degrades capacitors over time.
- An unused but plugged-in charger may fail sooner than one stored properly.
- This leads to more e-waste and unnecessary replacement costs.
✅ Fix: Unplug it. Store in a cool, dry place when not in regular use.
🛡️ Bonus: Power Surges Can Damage Idle Chargers
Even when not charging a device, a plugged-in charger is connected to your home’s electrical system. During a lightning strike or grid surge, it can act as a pathway for excess voltage—potentially frying its circuitry (or, in rare cases, sparking).
A surge protector helps, but unplugging is the only 100% effective method.
❤️ The Bottom Line
Leaving a charger plugged in won’t cause disaster overnight—but unplugging it is a simple, zero-cost habit that:
- Saves a little energy
- Reduces long-term fire risk (especially with cheap chargers)
- Extends the life of your accessories
So next time you unplug your phone, pull the charger too. It takes two seconds—and your future self (and your electric bill) will thank you.
🔌 “The safest device is the one that’s off—and unplugged.” — Electrical Safety Foundation International
