Pic: Tesla charges on... By Dan Ilett / 20 Dec 2007 / 1 min read This is the Tesla – charging away in its development garage. The charge takes three hours. But don’t forget that lithium batteries, which Teslas run on, become more inefficient as they get older. Share X LinkedIn Email Tagged Read next More from Greenbang. AI Infrastructure Power supply becomes the binding constraint on AI compute Dan Ilett / 3 min read AI The cost of a mile Dan Ilett / 4 min read