A battery test shows iPhone 17 gains are real but modest, with eSIM-only models likely lasting longer thanks to larger ...

The 16-inch MacBook Pro with M5 Pro offers excellent battery life, according to our tests.

Found in Apple AirTags, the CR2032 button cell battery, also known as a coin battery, is actually surprisingly easy to test ...

We've tested hundreds of laptops to find the ones that last the longest between charges. These battery-life champs will easily take you through a day of work or school, plus an evening's entertainment ...

Donut Lab's third independent VTT test confirms its solid-state battery retains 97.7% capacity after 240 hours idle. Energy density and cycle life remain untested.

VTT's second independent test shows Donut Lab's solid-state cell delivered 110% capacity at 80°C and survived 100°C discharge ...

Battery life remains a critical factor for smartphone users, directly influencing how devices are evaluated in terms of usability and overall performance. To better understand how modern smartphones ...

The iPhone Air isn't selling as well as the three iPhone 17 models, which are still sold out in various markets, but there's no question the handset is a head-turner. While the ultra-thin profile and ...

TL;DR: A new thin-and-light laptop has been teased as hitting over 30 hours of battery life in Hardware Canucks' web browsing test, a domain previously exclusive to rugged laptops with massive ...

Donut Lab solid-state battery retest by Finland’s VTT shows capacity rising to 110% at 80C, but weight data is still missing.

Apple's MacBooks have dominated in battery life in recent years, but this situation is undergoing a change now that Windows laptops, in addition to Intel and AMD, have a third CPU option: Qualcomm's ...

Donut Lab, a Finnish solid-state battery maker, claims its cells retained 97.7% of their charge after sitting idle for 10 days, a figure that, if independently confirmed, would represent a sharp ...