Quote:
Originally Posted by wsmeyer
Nonsense. Disconnecting the battery isn't going to do anything to the electrical system is hasn't been designed to deal with. I'm not saying you should make a habit out of it but automotive electrical systems are extremely durable.
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Best response stolen from another thread;
Your battery does more than just provide electrical current. It shorts spikes and transients to ground. Removing the battery from the circuit allows those spikes and transients to travel which could damage circuits in your vehicle. (ECU, speed sensitive steering, memory adjustments, cruise control, stereo, etc. etc.)
I've never been struck by a bus but I've never stepped in front of one either. Some mechanics still do this - some are lucky and some not. But would one ever admit (and pay for) their mistake?