You might have corroded battery terminals. Automobile batteries Have a very beneficial and a negative terminal (the two terminals that you choose to connect jumper cables to when soar-setting up an automobile). Corrosion close to a battery terminal—a powdery buildup that’s typically white, environmentally friendly, or blue—can hamper battery operate. https://telebookmarks.com/story8309273/the-ultimate-guide-to-car-battery-charger