Cars, trucks, RVs, and motorhomes run dual 12-volt batteries for various reasons. Depending on how you wire a two-battery 12-volt system, the result can be a 12-volt system or a 24-volt system—or even ...

(HWT Note: This is the first part in a three part series on understanding 12-volt batteries, which includes tips on improving battery function and longevity). It’s always nice talking to an expert. To ...

Manufacturers are investing huge sums into battery technology to maximize the range and performance of new electric cars. However, if you pop the hood of a modern EV, you might find a regular old ...

The old-fashioned 12-volt lead acid battery hasn't changed much since the mid-1950s. Now it's getting a makeover to handle a host of new responsibilities in electrified, automated and software-defined ...

(HWT Note: This is the third part in a three part series on understanding 12-volt batteries, which includes tips on improving battery function and longevity. The first is titled “Understanding 12-volt ...

Yes, Virginia, even a mighty Hummer EV with a 200kWh battery uses a 12-volt battery that could leave you stranded, but Clarios has a fix for this. It seems ridiculous, but even electric vehicles, plug ...

As fuel-economy rules get stricter, lithium-ion batteries may no longer be limited to electric cars. An increasing number of new cars are now being fitted with engine start-stop systems to reduce fuel ...

Is your car battery more than 3 years old? It could be on the verge of dying, and you might not even realize it. Keep a closer eye on how much life it has left by purchasing one of the many car ...

Outsiders might not know that electric cars still have lowly 12-volt (usual lead-acid) batteries on board to power the vehicle's 12-volt systems, but they do and Musk wants that to change with the ...

With fuel economy regulations tightening and connectivity and autonomous-driving capability proliferating, the old-fashioned 12-volt automobile electrical system has reached the end of the road.

Ford's Mustang Mach-E EV is pretty damned impressive for a first effort at a built-to-purpose electric vehicle. Of course, no new model is without its faults, and the owners of some early Mach-E ...