At some point, the 3.6 V of a single lithium ion battery just won’t do, and you’ll absolutely want to stack LiIon cells in series. When you need high power, you’ve either got to increase voltage or ...

Not all batteries get used all the time. While the AA batteries in your wall clock, home security camera, or TV remote may get a daily workout, other battery-powered items like flashlights, drones, ...

Seriously, how often do you charge your smartphone? Most of us don’t really have a set routine for it. Some plug it in at night and wake up to a full battery, some wait until it hits zero, some charge ...

How long does it take to charge an electric vehicle? The question is more complicated than it seems, and that's a challenge for the auto industry. Vehicles have different battery sizes, and charge at ...