ZDNET's key takeaways Total battery capacity is only one factor influencing actual device longevity.Lab tests demonstrate how ...

Cold weather exposes weak batteries fast. Here’s how to spot the warning signs—and replace it before winter leaves you stuck.

Battery problems rarely arrive out of nowhere. Long before a car refuses to start or a phone dies at 20 percent, small ...

Moderate drop: Indicates partial aging — monitor closely and retest soon. Severe drop or collapse: The battery is nearing end-of-life or has an internal fault. Tracking battery load test results helps ...

If your bike didn't start up this morning, or if you are simply wondering how to check the condition of your old battery before it gives out on you, the answer lies ahead. There are many ways to test ...

I sprung for a new battery for the aging x230. It's a GHU from Amazon for $60. The "new"one from Lenovo was $197, worth more than the laptop. So I've got a new battery - what's the best way to test?

Noah is a long-time writer, editor, website developer, and creative based in the United States and currently focused on automotive writing. Electric and hybrid powertrains and battery specifications ...

We've tested the best phones you can buy in the US alongside many popular mid-range and budget models. One of the most important and objective tests we conduct is a standardized battery test. We're ...

As the electric vehicle (EV) market surges towards 2040, fueled by strong consumer enthusiasm, the need to address key concerns about EV range, reliability, and battery life has become critical.