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from Jonah in Bayfield, WI:
#154
Does my cell phone battery charger use power if it is plugged in, but not charging my cell phone?
It sure does! Read on to learn more.
Yes, unless you unplug that charger it is still drawing a small amount of electricity. An adapter that has earned the ENERGY STAR meets strict energy efficiency guidelines set by the US Environmental Protection Agency and the US Department of Energy.
- On average, 30% more efficient than conventional models.
- Are often lighter and smaller in size, which makes it easier for consumers to transport products like laptops.
Consumers are now able to purchase a growing variety of products that are packaged with ENERGY STAR qualified power adapters. Products with qualified adapters are identified with a special version of the ENERGY STAR label.