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What is a Battery Charging System?

Battery Charging Systems

Battery charging systems are components used to recharge a wide variety of cordless products, including power tools, small household appliances, and personal care products like electric shavers.

Approximately 230 million products with battery charging systems are currently in use in American homes and businesses.

In the U.S. alone, more energy efficient battery chargers have the potential to save Americans more than 1 billion kilowatt hours (kWh) of energy per year, saving Americans more than $100 million annually while preventing the release of more than one million tons of greenhouse gas emissions — equivalent to the emissions of 150,000 cars. On average, ENERGY STAR qualified battery chargers will use 35% less energy than conventional models.

Earning the ENERGY STAR means products must meet strict energy-efficiency guidelines set by the US Environmental Protection Agency (EPA) and the US Department of Energy (DOE).

  • Conventional battery chargers — even when not actively charging a product — can draw as much as 5 to 20 times more energy than is actually stored in the battery!
  • Advanced energy-saving designs are now available that, on average, use 35 percent less energy.

Remember, saving energy prevents pollution.

By choosing ENERGY STAR, you are helping prevent global warming and promote cleaner air without sacrificing the product quality and performance you expect.

In addition, EPA and DOE have developed energy-efficiency guidelines for external power adapters used to power electronic products, such as mobile phones, notebook computers, and monitors. Learn more about ENERGY STAR External Power Adapters.

U.S. Environmental Protection Agency
1200 Pennsylvania Avenue, NW
Washington, DC 20460