Quote:
Originally Posted by Pinner
I understand that, but some electronics want 12 volts, not 11 or 13, 12.
And bad batteries won't hold any charge, nothing. Like a frozen one.
While were at it, electronic cars should not be running when you give someone a boost, jumps in voltage or a dead short could fry YOUR computer or lots of other stuff. Tow trucks have separate isolated batteries for boosting because of this.
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I'm not an electrical expert, but I'm pretty sure the different components will either accept varying voltage, or they have some sort of step up or down transformers. Most tow trucks have separate batteries because they are diesels, and you dont want to fry the glow plug circuit. At least my truck is this way.