You've got corroded battery terminals. Car or truck batteries have a constructive plus a detrimental terminal (the two terminals that you simply hook up jumper cables to when leap-commencing an auto). Corrosion all over a battery terminal—a powdery buildup that’s ordinarily white, environmentally friendly, or blue—can hamper battery purpose. AGM https://bookmarkwuzz.com/story18062154/car-battery-an-overview