March 10, 2013
Send a text message to charge your cellphone
Solar-powered cellphone charging station activated by text message could provide a big help to Africa. Juliet Nandutu in Uganda is offering the service to her village. "I charge 18 phones a day, sometimes 20," she says.
How many phones she charges depends on the local electricity supply. When it's there, people can charge their phones at home, but that's not very often. "It's not so reliable," she says. "It's on and off."
Each text message allows a phone to be charged for 1.5 hours. A fully charged Buffalo Grid unit can last for three days, has up to 10 charging points and charges 30 to 50 phones a day.
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