Between the invention of the self starter and the end of the 20th Century, the best portable car jump starters weren’t something you carried with you. They were heavy lead-acid automotive batteries ...

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 ...

We may receive a commission on purchases made from links. If you're like most people, chances are you keep a stash of single-use alkaline batteries at home, too. After all, they might seem mundane, ...