Can You Charge An Old Car Battery. Car Batteries will take whatever voltage is being sent to. If the voltage reading is flat at 120V then your battery is flat dead.
You can extend the life of your battery by making sure it stays fully charged and avoiding rapid charging. Meanwhile if the voltage reading is at 124V it means your battery still has 50 energy. This content is created and maintained by a third party and imported onto this page to.
Before asking how long it takes to charge a car battery we have to look at the methods designed to make the charging process as quick and smooth as possible.
Our Research Has Helped Over 250 Million People Find the Best Products. Dont get stranded. In order to charge a dead car battery a set of jumper cables and a functional car with a charged battery is required. At what voltage reading can you tell that your car battery is flat dead.
