Batteries should only be disconnected Should the engine is off and the alternator is not really operating. Disconnecting a car or truck battery even though the alternator is running may cause a voltage spike that could hurt sensitive Digital elements inside the vehicle, including the PCM. *The battery warning mild https://car-air-conditioner-repai95093.blogscribble.com/29003077/a-review-of-car-battery-shop-in-abu-dhabi