Start-up Adden Energy Develops EV Battery that Charges in 3 Minutes, Lasts 20 Years Updated On Thu, Sep 15th, 2022 by Saurenergy Start-up Adden Energy has innovated a battery for electric cars that promises to achieve full charging in three minutes and also lasts two decades. The start-up announced that it has received the grant of an exclusive technology license by Harvard University’s Office of Technology Development (OTD) and a seed round financing of $5.15 million. Adden […] Read more