Need a long-lasting laptop? Here are the longest battery life laptops we've seen in our many years of hands-on testing.

Discover how the Oppo Find X9 Pro’s 7,500mAh battery redefines smartphone endurance, outperforming the iPhone 17 Pro Max and ...

CNET senior technology reporter Abrar Al-Heeti highlights that the iPhone Air she reviewed regularly ends the day with about 20% to spare (after starting with a full battery). She said it would drop ...

Choosing between the Galaxy S25 Ultra and the iPhone 17 Pro Max can be a challenging decision, as both devices represent the pinnacle of modern smartphone technology. Each offers distinct strengths ...

A solid battery score. We've completed our battery life and charging tests on the Xiaomi 17 Pro Max and the result are pretty ...

The iPhone 17 Pro Max runs on Apple's new A19 Pro chip, which, combined with a vapor cooling chamber, iOS 26, and a large battery, allows the phone to last a day on a single charge.

In the fourth iOS 26.1 beta, Apple added a "Tinted" option that reduces the translucency of Liquid Glass for those who prefer a more ...

The study found that an impressive 8 out of 10 of the used EVs tested retained over 90% of their original battery capacity.

They have developed a fluorinated deep eutectic gel electrolyte (DEGE) that overcomes critical safety and performance hurdles ...

Battery cell voltage is the most fundamental measurement made on the cell. While on the surface measuring voltage seems easy, ...