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

Momodou Wurry Jallow, an electrical engineering major at Alfred University, gives a demonstration on battery testing equipment installed in a lab in the McMahon Engineering Building. The demonstration ...

We test every laptop we review in our testing lab, and of the 100+ laptops we reviewed in 2025 these 10 lasted the longest and deliver the best bang for your buck in terms of power efficiency.

There’s nothing more frustrating than hearing the familiar ding of a dying battery. This scenario always seems to happen when there’s zero outlets in sight. Bummer, man. Nowadays, laptops are lasting ...

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 ...

At the BDC-Testing Center in Rochester, N.Y., batteries and energy storage systems are tested for performance, durability, and safety in a modern 18,000+ square foot facility. The test center is an ...

ZDNET experts put every product through rigorous testing and research to curate the best options for you. If you buy through our links, we may earn a commission. Learn Our Process 'ZDNET Recommends': ...

There have been many incidents in which battery failure has caused fires, with the news reporting catastrophic results in some instances. Decomposition reactions in batteries’ electrolytes and ...

Struggling with fast battery drain on your Android phone? In this article, we explore five smart hacks and simple setting ...