Vehicle battery health is often overlooked, yet a quick and easy check a couple of times a year with a quality battery load tester can identify problems before your battery lets you down (and you just know that could happen at the most inconvenient time and place). The challenge comes in finding the right model. There is enormous choice in terms of price, accuracy and available features. Our top picks provide a cross-section of the best on the market and offer effective solutions for the vast majority of people. Our battery load tester shopping guide gives detailed information and answers a range of buyer’s questions.