Key Takeaways
Smartphone and laptop chargers use a negligible amount of idle power when left plugged in. Other kinds of chargers vary significantly, however, and it's worth checking their power consumption or just unplugging them to play it safe.
Tested: Should You Unplug Chargers When You're Not Using Them?
There are a lot of ways to save on your power bill, but policing your phone charger isn't one of them.
