Quote:
Originally Posted by ESchwab
I also have a connection under the hood of my car that allows the use of a booster battery. It is a post to which one attaches the lead from the positive post of a booster battery. The ground lead or cable from the booster battery can be attached to the manifold or any other appropriate ground under the hood.
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That's an interesting point as to whether the under hood connection can be used to "backfeed" a car's electrical system in the absence of the car's battery. I would try it, but being aware of the possibility that the loose end of the "positive" wire which is no longer attached to the car's battery may be touching part of the car's body and would create a dead short when power is applied. Give it a go and report results.