AI predicts battery life

It’s an annoyance many consumers have had to deal with: one day your phone battery easily lasts a whole day, seemingly the next it runs out of juice even before you started your evening commute. Clearly, the capacity of lithium-ion batteries can suddenly take a sharp turn downward. How many cycles a battery lasts tends to vary widely though. Sometimes you get lucky when buying a new phone, sometimes you don’t.

Manufacturers of cell phone batteries would love to be able to tell which ones will last, say, over two years and which ones won’t. They could sell the best ones to premium brands, send the rest to makers of budget devices or use them for less demanding applications altogether.