You have got corroded battery terminals. Vehicle batteries Use a optimistic and a negative terminal (the two terminals that you choose to hook up jumper cables to when leap-starting up a car or truck). Corrosion about a battery terminal—a powdery buildup that’s normally white, inexperienced, or blue—can hamper battery purpose. https://medium.com/@business.orders.online/quick-car-battery-replacement-sharjah-warrantee-تبديل-بطارية-السيارة-في-الشارقة-43bde418ddc4