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Battery Chargers for Consumers

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Did You Know?

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.

About ENERGY STAR Battery Chargers

Battery Chargers 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.

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.

In addition, external power adapters used to power electronic products, such as mobile phones, notebook computers, and monitors can now earn the ENERGY STAR. Learn more about ENERGY STAR External Power Adapters.

Current Specification Effective Date:

January 2006

ENERGY STAR qualified battery charging systems use 30% less energy than standard equipment. This specification complements the ENERGY STAR external power supply (EPS) specification. Together the two specifications cover virtually all portable electronic devices, allowing EPA to address the energy use of a variety of end use products without developing individual specifications for these products.

Learn How a Product Earns the Label

These FAQs represent the top ten related to Battery Chargers and the ENERGY STAR program.

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