Old laptop batteries could power slums, IBM says - BBC News
▻http://www.bbc.com/news/technology-30345221
An IBM study analysed a sample of discarded batteries and found 70% had enough power to keep an LED light on more than four hours a day for a year.
Researchers said using discarded batteries is cheaper than existing power options, and also helps deal with the mounting e-waste problem.
#hummmm ! #e-waste #batteries #énergie #bidonvilles
