Design Patent - 1928 J.C
When It Works (And When It Doesnt) It can work if: Youre using a dedicated 12V battery maintainer (not a full charger) Your vehicles 12V port stays live even when the ignition is off The battery is already in decent condition (just needs a top-up) It wont work if: The battery is flat or deeply discharged Your 12V socket turns off with the ignition (common in newer cars) Youre trying to use a standard charger through an adapter You need a fast or emergency charge This method is more about preserving charge than restoring it
To put this in perspective, according to the Centers for Disease Control and Prevention, in 2016 146,571 people died from accidents, 140,323 from a stroke, 110,561 from Alzheimers disease, 79,535 from diabetes, and 44,193 from suicide
Monsters, Inc. (2001) Directed by Pete Docter
Aside from the obvious health reasons to put down your pack of cigarettes, there are more practical reasons to give up the habit