Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Aug 27, 2025 4:00 PM EDT Is your car battery more than 3 years old?

Cold snaps are brutal on car batteries, and weak 12-volt units are the number-one cause of winter breakdowns in the UK.¹ A ...

In this report, we’re testing Topdon’s new V4500 Plus jump-starter on a 12-volt battery that is beyond dead. The product test actually is a precursor to the formal reintroduction of “Project Black ...

Zak is new to the CarBuzz team, working as a freelance content writer. When Zak isn't writing How To articles for CarBuzz he's working as a high school automotive technology instructor. Before ...

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.

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 ...

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 ...

Fleet managers are being warned that the 12-volt battery on their electric vans may unexpectedly go flat, leaving them unable to start the vehicle and having to pay hundreds of pounds for a breakdown ...