A new, interesting second life use for used EV batteries is being pioneered by one of the world's most popular bands. And the recharging methods are quite unique and sustainable - including solar power, generators powered by vegetable oil, power bikes, and a kinetic stadium floor. The last two are the most interesting, since they both harness the power of the fans who are showing up at the concert in order to recharge the band’s battery to bring to the next show!
Instead of using diesel or gasoline generators to power the band’s equipment during the tour, BMW recycled over 40 i3 batteries and combined them into one massive, portable tour battery that can be recharged after each show.
https://jalopnik.com/coldplays-new-tour-is-powered-by-recycled-bmw-batteries-1847891115