We can't build batteries for phones and laptops that last multiple days on a single charge.
open
Global / Unspecified, Global
Despite decades of research, battery capacity has improved far more slowly than the power demands of our devices. A real breakthrough here would change how we use and design nearly all portable technology.
Citation ID: WS00024
Title: We can't build batteries for phones and laptops that last multiple days on a single charge.
URL: https://worldsolve.org/index.php?api=problem&id=24