This can be accomplished with a 12-volt battery or two 6-volt batteries. Here’s a look at the benefits and drawbacks of each: Pros & Cons of Both 12V and 6V Batteries If you’re looking to replace your ...

A dead 12-volt battery can be caused by lack of use. An EV’s low-voltage system is always ON, powering various computers and controlling modules, even when the vehicle is OFF.

And yet, most of the electric cars and PHEVs on the road right now, whatever their range or 0-to-60-mph time, depend on a relic to get moving: a 12-volt battery, usually of the lead-acid variety.

Its latest hybrid, the 2020 Hyundai Sonata Hybrid, comes with some innovative battery packaging that gets rid of the old 28-pound, 12-volt lead-acid accessory battery that was used up until this year.

It’s not a very happy holiday season for owners of Honda’s CR-V Hybrid SUV, which just got a recall for a missing fuse for its 12-volt battery cable. More than 106,000 vehicles are affected.

As it happens, an estimated 106,030 examples of the CR-V Hybrid have been produced with 12-volt battery cables that do not contain a fuse for the power circuit, thus increasing the risk of an ...

We've tested and reviewed products since 1936. Read CR's review of the Revo Multi-Function 12V Car Battery Jump Starter jump starter to find out if it's worth it.

The 12-volt battery also powers the vehicle's computers when the car is not in use. That's needed for features such as over-the-air software updates.