Between the invention of the self starter and the end of the 20th Century, the best portable car jump starters weren’t something you carried with you. They were heavy lead-acid automotive batteries ...

A couple of decades ago, having a dead battery usually meant pulling out jumper cables and hoping your friendly neighbor (if you didn't own a secondary car) would be kind enough to give you a jolt to ...

It's easy to tell if your iPhone is charging when it's turned on, but a little more difficult when it's powered off. Here's ...

Rechargeable batteries are, among other things, one of the most crucial tools that you'll want to add to your earthquake emergency kit. When the grid is down, these devices can efficiently power ...

In a recent Pixel Feature Drop, Google rolled out the ability to cap your phone's battery charge at 80%. (Recent iPhone models have a similar feature.) While that might seem like something you'd never ...