You really shouldn't start the car through cig lighter. I can see you burning the wires doing that. but what I was using the cig lighter plug for is to change the battery in the car so the radio wouldn't ask for a code(anti theft radios).
Eppy's tools got some nice once for decent price. I've been using one at work for a year with 0 problems. and the jump box was there for another year before I got there.
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Alex.