The alternator is a device that keeps your car’s electrical system running once the engine is on. It’s essentially a small generator that converts mechanical energy into electricity, bolted to the ...

The Harbor Freight MADDOX back-probe kit lets DIYers test automotive sensors safely. Just insert between wire and insulation, ...

Discover how Samsung's flagship phones perform in battery tests. S25 Ultra leads, while Fold 7 struggles. Full results and analysis here!

Solid-state power banks are much safer than lithium-ion power banks, as demonstrated by putting a hole in the KUXIU S2 ...

Some believe the "Babylon Battery" is an ancient device capable of generating electricity—centuries before modern batteries ...

This universal battery tester couldn't be easier to use, and is a great way to determine which ones are still good.

This universal battery tester couldn't be easier to use, and is a great way to determine which ones are still good.

If your battery is dead, your safest option is to get a jump start from another vehicle. But if you’re truly stranded, roll ...