What happens if you cross positive and negative?
What happens if you cross positive and negative? Connecting the positive terminal of each battery to the negative terminal of the other battery will result in a huge surge of electrical current between the two batteries. The heat can melt internal and external battery parts, while the pressure from the hydrogen gas can crack the battery casing. What happens if you put a car battery in wrong? Manufacturers precisely match their alternators and batteries to the vehicle's power requirements. A mismatched battery/alternator combo could cause your alternator to overheat and shorten its life. Is there a 2020 Corvette with a...