You might have corroded battery terminals. Car batteries Possess a constructive and also a negative terminal (the two terminals that you just hook up jumper cables to when soar-beginning a car or truck). Corrosion about a battery terminal—a powdery buildup that’s usually white, environmentally friendly, or blue—can hamper battery function. https://bookmarkloves.com/story20028888/car-battery-change-no-further-a-mystery