Dangerous? You great wimp, it's only a 12V battery :-)
If you connect them up in the wrong order then apparently it might bleed a load of charge off the working car into some kind of black hole and both batteries go flat or something. If you connect them in the right order then it doesn't do that. But it's dead easy; connect the batteries in the right order (your leads are right), then have someone sit in the working car with the engine on and rev it, and then you sit in your flat car and start it. Lots of accelerator. Once it's running on its own, disconnect the leads in the right order, leave yours running for a bit, and then off to wherever you're going; as terry says, you should really take it for a reasonable drive so that the alternator gets a chance to charge your battery up again.
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Dangerous?
Date: 2005-02-15 08:06 am (UTC)If you connect them up in the wrong order then apparently it might bleed a load of charge off the working car into some kind of black hole and both batteries go flat or something. If you connect them in the right order then it doesn't do that. But it's dead easy; connect the batteries in the right order (your leads are right), then have someone sit in the working car with the engine on and rev it, and then you sit in your flat car and start it. Lots of accelerator. Once it's running on its own, disconnect the leads in the right order, leave yours running for a bit, and then off to wherever you're going; as terry says, you should really take it for a reasonable drive so that the alternator gets a chance to charge your battery up again.
sil