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post #1 of (permalink) Old 12-23-2002, 08:45 AM Thread Starter
 
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Is using top AND side terminals bad?

87 YJ/4.2

I'm chasing gremlins and anything else funky I can find. While I'm grounding the doggy poop out of my three jeeps I keep having this impending question concerning the usage of both my top and side terminals. Is this bad? Does it have an ill effect on my battery? Thanks.
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post #2 of (permalink) Old 12-23-2002, 08:48 AM
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Re: Is using top AND side terminals bad?

How could it hurt? Both the top and side posts are physically connected inside the battery case anyway. I use both the top & side posts....no problems so far [img]images/graemlins/crazy.gif[/img]!
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post #3 of (permalink) Old 12-23-2002, 09:23 AM
 
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Re: Is using top AND side terminals bad?

The only issue I think you should be aware of is that side posts on some batteries (i.e. Optimas) are not rated for high current draw. As long as you're not winching or running your starter from the side posts, you should be fine. They make a great place to put accessories.
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post #4 of (permalink) Old 12-23-2002, 09:38 AM
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Re: Is using top AND side terminals bad?

bluesman2a said it right. use all of them but attach the winch to the top post only.
post #5 of (permalink) Old 12-23-2002, 12:34 PM
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Re: Is using top AND side terminals bad?

Good tip. I moved mine from the side post to the top after reading about it on this board. I would have been pissed if I had melted my high $$$ red top!
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post #6 of (permalink) Old 12-23-2002, 01:19 PM
 
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Re: Is using top AND side terminals bad?

It could make finding a replacement a little more difficult. Not all batteries have both sets of terminals.
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post #7 of (permalink) Old 12-23-2002, 01:36 PM
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Re: Is using top AND side terminals bad?

</font><blockquote><font class="small">In reply to:</font><hr />
<font color="blue"> The only issue I think you should be aware of is that side posts on some batteries (i.e. Optimas) are not rated for high current draw. </font color>

[/ QUOTE ]

Has this been documented by the Optima folks? I did a Google search to no avail. Just wondering....I've got everything but the winch powered off the side posts. I hate to fry something if this IS the case.
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post #8 of (permalink) Old 12-23-2002, 02:09 PM
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Re: Is using top AND side terminals bad?

Here ya go... straight from their website:

Connect high amperage accessories such as a winch to the top terminals only. Do NOT use the side terminals.

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post #9 of (permalink) Old 12-23-2002, 02:33 PM
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Re: Is using top AND side terminals bad?

Thanks Leve! I can see the winch coonection only to the top posts, but thought it rather stupid not to use the side posts for the starter, etc. I realize this is/can be considered high amp draw, but since 3/4 of all new cars utilize side post connections, surely they would have engineered the side posts to be OK for normal starting &amp; run operations.
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post #10 of (permalink) Old 12-23-2002, 02:38 PM
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Re: Is using top AND side terminals bad?

</font><blockquote><font class="small">In reply to:</font><hr />
surely they would have engineered the side posts to be OK for normal starting &amp; run operations

[/ QUOTE ]

1. That's the rub!
2. What happens when:
a. The starter wears.
b. The grounds corrode.
c. The solenoid to starter wire corrodes.
d. The terminals corrode?
3. Higher than normal amperages is drawn.
4. This could destroy the connection.
5. It's not out of reason to expect the terminal to be damaged when the above happens.
6. It's dependant upon how much current has to travel through that bus inside the battery.
7. Would I use the side termnials?
8. IMHO, nope, not on a Jeep (uless it's a pampered street Jeep).
9. There's just too much that can happen.
10. And we all know if it can happen, it's only a matter of time till it does happen.
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