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Battery Charging Systems & External Power Adapters

Switching to energy efficient battery charging systems will prevent the release of more than one million tons of greenhouse gas emissions in the U.S. ENERGY STAR® qualified battery chargers and external power adapters use up to 35% less energy than conventional models.

Facts & Product Knowledge

• An ENERGY STAR battery charging system does not exceed the maximum Nonactive Energy Ratio, which is based on the nominal battery voltage (Vb)
• ENERGY STAR batteries must have voltages less than 42 volts
• ENERGY STAR chargers must have nameplate input power between 2 and 300 watts

Tips

• Good: Unplug all battery charging systems when not in use
• Better: Use a basic power strip to plug in all of your chargers, this allows you to shut them all off with the click of a button when not in use
• Even Better: Use a basic power strip and a plug in timer to allow you to automatically shut the entire power strip off for extended periods of time when the power supplies are not in use
• Best: Use an advanced power strip with a built in timer. These units typically have three sets of power outlets on one power strip. Two outlets are constant on for items that must have constant power, two strips to set a timer to operate for a set time frame, and then tow additional outlets that can be set for a separate operating timer.