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 ...

We may receive a commission on purchases made from links. Electric cars may be all the rage these days, but even before we had cars entirely powered by electricity, batteries were still vital ...

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 ...

There’s only one way to answer the question, “Is it my battery, or something else” when your car won’t start: Hook up the best car battery tester and get a readout of what’s going on. Skip the ...

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 ...

You should charge your MacBook Pro using the official charging cable that came with the computer, and turn it off for an optimal charge.

If your current smartphone can’t make it through the day without needing a recharge, here are a few steps to make it last a little longer. By J. D. Biersdorfer J. D. Biersdorfer is the Tech Tip ...

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 ...