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what will happen if you install the battery backward?

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Old 06-30-04, 10:57 AM
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Question what will happen if you install the battery backward?

this is a dump question. you may wonder how this could happen? well, only people who have done it will know. what about by accident?

what will be the damage to our 7? fues? electronic stuff??

Old 06-30-04, 11:00 AM
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I had the cables hooked up backwards and as soon as we hooked them up it started sparking and the starter starting turning the engine, but I think we had them wrong at the starter too. Lots of sparks though, and the cable was welding itself to the battery. There was no permanent damage, but it's not something I recommend you do for recreation.

Last edited by Project84; 06-30-04 at 11:03 AM.
Old 06-30-04, 11:05 AM
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Lots of electrical things die.
Old 06-30-04, 11:08 AM
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I have done this befor and all it did was blow a fuse.

However, I have heard of people loosing their wiring harness and ECU.

I guess it depends on how long you have it hooked up and whether you crank the engine or not.
Old 06-30-04, 11:29 AM
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what about fuel pump? starter? ignition coil? etc...
Old 06-30-04, 12:14 PM
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I saw a guy hook an arc welder to a battery thinking that the welder was a battery charger!!! A lot of smoke but no real damage. I believe the ground wire smoked up and had to be replaced. I didn't look too closely.
Old 06-30-04, 12:18 PM
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The ECU could become damaged, alot of electrical connections could fry instantly... Small relays in misc switches "could" be damaged..

Battery "could" explode throwing liquid everywhere, melting your eyes out, skin damage... car fire

Just alot of BAD things

-Markus
Old 06-30-04, 12:32 PM
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wow, could those all happen with a second of touching with wrong terminal?
Old 06-30-04, 12:49 PM
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Originally posted by fong
wow, could those all happen with a second of touching with wrong terminal?
Sure! if the terminal decides to suddenly WELD itself to the point where you can't pull it off... It's just generally a bad idea. Allthough IIRC there's a fuse that "should" kill itself before anything that bad happens.

-Markus
Old 06-30-04, 03:15 PM
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Originally posted by jhammons01
I saw a guy hook an arc welder to a battery thinking that the welder was a battery charger!!!
HAHAAHAHAHA... i would PAY to see THAT!!!!!!!
Old 06-30-04, 03:18 PM
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Marcus, what is a Microtech LT-8?
Old 06-30-04, 04:34 PM
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Its a stand alone engine management system.
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