An animation shows two contrasting views of how electrode particles release their stored lithium ions during battery charging. Red particles are full of lithium and green ones are empty.

Here's how: go to Settings > Battery > Charging Settings > Fast charging (on). Samsung Galaxy smartphone users often notice green, teal, and blue circular animations when charging their phones.

One important change is a new laptop battery indicator that visualizes the charge level with new symbols. This change was actually supposed to be implemented last month, but the release was ...