The AGM (absorbed glass mat) type of car battery is the most common type in modern cars. How do you properly charge it? What do you need to do?

Between the invention of the self starter and the end of the 20th Century, the best portable car jump starters weren’t ...

Leaving a vehicle sit for extended periods or mostly short trips can also sap your battery. One option is to purchase a battery maintainer/maintenance charger to keep the battery sufficiently charged ...

Habitual charging to 100% affects a plug-in hybrid battery’s longevity. A common issue contributing to consumer resistance to hybrids is the specter of paying thousands of dollars to replace the ...

Step 1: Ensure the charger is compatible with your vehicle's battery. Most car batteries are 12 volt, but some motorcycles and smaller vehicles use 6-volt batteries.

A fully charged lead-acid car battery will have an electrolyte solution of about 37% sulfuric acid and 63% water. In this state, the positive plates inside the battery turn to lead oxide, while ...

If you charge the battery and the reading doesn't improve, your battery needs to be replaced. If the car can't keep battery voltage above 13.5 while running, the alternator isn't doing its job ...

A Level 2 home charger can fully charge most EV batteries in under 10 hours, but few drivers deplete their car’s battery every day. “Topping off overnight using a Level 2 charger is convenient ...