You might have corroded battery terminals. Motor vehicle batteries Use a constructive plus a detrimental terminal (The 2 terminals that you choose to join jumper cables to when bounce-starting off a car or truck). Corrosion around a battery terminal—a powdery buildup that’s generally white, inexperienced, or blue—can hamper battery purpose. https://bookmarkfox.com/story3502905/how-much-you-need-to-expect-you-ll-pay-for-a-good-change-car-battery-at-home-service