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.

One homeowner recently found out exactly what their home battery system was capable of during a severe storm blackout.

Scrolling and streaming suck plenty of power on today's Android phones. Here's how to squeeze the most juice out of your battery, including a new option to monitor battery-hungry apps.

When it comes to picking up a new gaming machine, I am always asking myself, should I get a desktop or a laptop? The answer ...

Rechargeable batteries are everywhere—from portable electronic devices and electric vehicles to renewable energy storage.

Slim gaming laptops are a rare breed, and Acer's Predator Helios Neo 16S AI (starts at $1,599.99, as tested) tries to bring ...

With component prices on the rise, it's never been more important to choose the right laptop for the long haul. Our latest audience survey reveals the PC manufacturers that rise to the top, as well as ...

The Finnish startup’s pack can charge from 0 to 80 percent in under 5 minutes, according to its first independent test. The Finnish startup’s pack can charge from 0 to 80 percent in under 5 minutes, ...

It is common knowledge that communicating over WiFi is more efficient than using the 5G cellular network, but by how much exactly? That’s exactly what PhoneBuff set out to measure in its latest ...

This video puts the iPhone 17 through an extended battery test designed to mirror real-world usage. Screen time, background tasks, and performance demands are pushed consistently over many hours. As ...

Hithium has released results from a large-scale fire safety test of its 6.25 MWh “∞Power” battery energy storage system, with an open-door configuration supervised by UL Solutions to assess thermal ...

A broad new smartphone test has found that Apple devices lead the industry for battery life, with the iPhone 17 Pro Max ranking as the longest-lasting phone tested and Apple tied as the top overall ...