The trick of using the jumper thru the cigar lighters is to charge the dead battery first. Once the dead battery is charged to certain point via the cigar lighter; the dead battery now providing some current plus the current coming from a good battery, you should be able to start the car unless the dead battery is very dead and/or bad battery terminals. The jumper cable should have a current limiter so that burning the wire or fuse in both cars is not an issue. The problems I found are the poor contacts inside the cigar lighters and the time to charge the dead battery. It is much easier using a regular jumper cable with caution.
David
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