This video reviews a compact battery-powered mini camera, evaluating its features, performance, and whether it’s best suited as a discreet spy cam or a small security camera for everyday use. Watch ...

A cheaper, safer, and more abundant alternative to lithium is finally making its way into cars—and the grid. For decades, lithium-ion batteries have powered our phones, laptops, and electric vehicles.

Lithium batteries have taken over as the primary battery chemistry from applications ranging from consumer electronics to ...

Improved carbon-cement supercapacitors could turn the concrete around us into massive energy storage systems. Concrete already builds our world, and an MIT-invented variant known as ...

Keeping a phone fully charged is the only way to make sure it's ready for a long day. But there's a major difference between being "charged" and being "healthy." Most modern Androids and iPhones are ...

Several factors contribute to better battery performance, and in the latest system update, Apple added a background tool based on Apple Intelligence. Jeff Carlson writes about mobile technology for ...

Anker is back at it again with a new 20,100mAh power bank, under its Anker Prime brand. This power bank has three ports, offers up to 220W of output, and comes in a pretty compact package. It’s ...

Apple has packed iOS 26 with flashy upgrades, but the most useful habit for everyday users is not on any keynote slide. The single weekly move that quietly transforms battery life and performance is a ...

Jump starters typically have the same voltage as most car batteries: 12. The range of amps is much wider, though, to fit the gulf of requirements among all types of cars. For example, a small sedan ...