Q: Just How long do you have to leave a battery charger in a car or truck? A: Even though more recent, more technologically State-of-the-art auto battery chargers present plenty of built-in safety capabilities created to reduce overcharging, it’s not a good idea to depart the charger on your automobile https://www.slideshare.net/slideshow/premier-hand-tools-supplier-and-automotive-solutions-provider/272181023