Test Editor Doug Newcomb recently tested a slew of portable jump starters and landed on eight he recommends—five of which are ...

Cordless battery-powered chainsaws quiet, light and fast–everything you need for winter cleanup.

This easy and affordable add-on assists aging batteries by delivering 700 amps of instant power to help start your car. We ...

Slimline and lightweight, this ultra-portable laptop offers plenty of power where it matters, making it ideal for workers, ...

If your car battery is three or four years old, the first serious cold snap could be the morning it quits. Here’s how to spot the warning signs. Cold weather exposes weak car batteries, increasing ...

Its solid-state batteries are already showing promise with real-world tests delivering over 745 miles of range on a single charge. Now, Factorial Energy is going public as it aims to bring the ...

John V. is back again with the end of year results of the Tom’s Guide Battery Test, ranking the best phones for battery life based on our official benchmarks. All of the smartphones on this list ...

Discover why smartphone batteries degrade faster over time, with expert insights on battery degradation science, smart smartphone battery tips, lithium-ion lifespan, and device maintenance. Pixabay, ...

Amazon’s new two-piece Basics Core Soft ball was never designed to dominate the tour. But when an ultra-budget ball promises “exceptional distance, straight flight and advanced cover and core ...

While car batteries die more quickly in hot weather, keeping on top of things during the winter is still essential. Here's why: Cold temperatures reduce a battery's cranking power. A battery that's ...

Amazon said it will begin allowing select businesses to test its internet-from-space service. Earlier this month, Amazon renamed its satellite internet offering from Project Kuiper to Amazon Leo as it ...

Moderate drop: Indicates partial aging — monitor closely and retest soon. Severe drop or collapse: The battery is nearing end-of-life or has an internal fault. Tracking battery load test results helps ...