These are tech expert Marc Salzman's top CES picks for USA TODAY after his hands-on with future gadgets and gear in Las Vegas ...

Crowbar circuits have long been the go-to safeguard against overvoltage conditions, prized for their simplicity and reliability. Though often overshadowed by newer protection schemes, the crowbar ...

Police cruisers look familiar from the outside, but under the hood they are tuned for a very different life than the average commuter car. I want to unpack what really separates a patrol vehicle’s ...

There’s only one way to answer the question, “Is it my battery, or something else” when your car won’t start: Hook up the best car battery tester and get a readout of what’s going on. Skip the ...

To test this theory, Ava Marie can turn on the headlights, then the heater, rear defroster, and radio. If the noise becomes noticeably louder, or the headlights dim or flicker, it suggests the ...

The Bluetti Charger 2 is the company's latest charger for van life, RVs and digital nomads. I took a look at CES 2026.

For more than a decade, the automotive industry has anticipated a shift in low-voltage architectures. That future has now arrived. Across Europe — and particularly in Germany — 48-V power systems have ...

Abstract: This paper presents the performance of homopolar inductor alternator (HIA) with diode-bridge rectifier and capacitive load. According to the conduction and commutation rules, all the ...

For around $25, the Neoteck TS20D is a fully-featured, well-made, and decently accurate tool that will handle most multimeter-related tasks. It's small enough to drop into a pocket or toolbox, durable ...