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"Your Phone is Charged. Please Unplug Your Charger Now"

"The members of the task force [...] agreed to include audio alerts on the cell phones they make that will remind people to unplug their charger once a phone is fully charged [..]. According to the final report, If 10 percent of the world's cell phone owners did this, it would reduce energy consumption by an amount equivalent to that used by 60,000 European homes per year."