Effects of incorrect jump starting?

Moostang · 11-07-2007, 07:13 AM

The topic of jump starting came up over on the horse forum, I was just wondering, what would be the effects to the good battery (and everything else) if you hooked hooked up the jumpers backwards? Good battery dies, just sparks, possible computer fry or all of the above?

mrjohnwayne · 11-07-2007, 07:52 AM

all of the above, and if your unlucky enough it could cause the good or bad battery to explode.

mudseeker · 11-07-2007, 02:31 PM

define backwards.
neg on positive or just hooking up in the wrong order?

Moostang · 11-07-2007, 03:14 PM

neg on pos

crabtruck · 11-07-2007, 04:24 PM

Only seen it once - don't ever want to see it again.
Guy I was with installed a battery backwards with reversed polarity
on a ski lift backup system (28 battery config)
We were outside the battery room when he energized for the test.
Wound up in the snow 15' from the tower we were on.
Wasn't the blast tho, fear makes you a good jumper.
Moral of story: uh, bad idea...
Have seen folks make a striking type contact with reversed batts
and only get big sparks, but I wouldn't bet my eyes on it.

99Ram4x4 · 11-08-2007, 11:39 AM

You will short out the good battery.

11-07-2007, 07:13 AM	#1
Moostang Senior Moderator Join Date: Apr 2005 Location: Cali-4 Nye-Aye? Posts: 1,178	Effects of incorrect jump starting? The topic of jump starting came up over on the horse forum, I was just wondering, what would be the effects to the good battery (and everything else) if you hooked hooked up the jumpers backwards? Good battery dies, just sparks, possible computer fry or all of the above? __________________ MEOW!! http://moostangproductions.com

11-07-2007, 07:52 AM	#2
mrjohnwayne Moderator Join Date: Apr 2005 Location: Texas Posts: 3,101	all of the above, and if your unlucky enough it could cause the good or bad battery to explode. __________________ John Wayne 2000 F-350 7.3L Powerstroke 4x4

11-07-2007, 02:31 PM	#3
mudseeker Moderator Join Date: Feb 2006 Location: michigan Posts: 3,919	define backwards. neg on positive or just hooking up in the wrong order? __________________ member map add yourself

11-07-2007, 03:14 PM	#4
Moostang Senior Moderator Join Date: Apr 2005 Location: Cali-4 Nye-Aye? Posts: 1,178	neg on pos __________________ MEOW!! http://moostangproductions.com

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11-07-2007, 04:24 PM	#5
crabtruck Senior Member Join Date: Jul 2007 Posts: 1,464	Only seen it once - don't ever want to see it again. Guy I was with installed a battery backwards with reversed polarity on a ski lift backup system (28 battery config) We were outside the battery room when he energized for the test. Wound up in the snow 15' from the tower we were on. Wasn't the blast tho, fear makes you a good jumper. Moral of story: uh, bad idea... Have seen folks make a striking type contact with reversed batts and only get big sparks, but I wouldn't bet my eyes on it.

11-08-2007, 11:39 AM	#6
99Ram4x4 Junior Member Join Date: Nov 2007 Posts: 5	You will short out the good battery.

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