Washington Post: “…So what can we do to make batteries live longer? I called up two scientists who study lithium batteries, the University of Michigan’s Gregory A. Keoleian and the University of Maryland’s Michael G. Pecht. “The key drivers that influence degradation are the temperature, the state of charge and the charge rate,” says Keoleian. They advised us to always follow the specific advice of manufacturers. (For the record, here’s what Apple and Samsung say.)…”