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Old 10-18-2004, 12:37 AM   #11
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Volts mean nothing in this situation. It'* current that matters. Amps. And I agree.....stock alternator on a 93 is NOT a 140. Can you verify this?

Stock alternator is a 105 unless you have the heated windshield (not available on the SE), in which case you get a 125.
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Old 10-18-2004, 02:46 AM   #12
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This isnt for the 93, its for the 97 and when i purchased it they said it was 140 amps
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Old 10-18-2004, 10:55 AM   #13
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When I bought my car, they said it had a flux capacitor behind the rear seat. That explains the food processor mounted to the rear deck, eh? Check your alternator, or take a couple pics of it for us. Even if it is a 140, it could be tired, especially if you had a bad batter weaken it last year.
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Old 10-18-2004, 11:54 AM   #14
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I believe that Firedevil has a 2 battery setup on a stock 105 alt with no problems. and he is using alot of power
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Old 10-18-2004, 12:32 PM   #15
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Quote:
Originally Posted by 1993 SLE
I believe that Firedevil has a 2 battery setup on a stock 105 alt with no problems. and he is using alot of power
He'* probably running an isolator.
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Old 10-18-2004, 12:46 PM   #16
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An isolator is when you have a switch, which pics which battery to use, right? Painless wiring makes one.. I think its $100 or something.


-justin
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Old 10-18-2004, 01:16 PM   #17
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Quote:
Originally Posted by opensourceguy
An isolator is when you have a switch, which pics which battery to use, right? Painless wiring makes one.. I think its $100 or something.


-justin
No, quite the opposite. The isolator solves all the problems that switches and relays have. It ISOLATES the batteries from each other.

Another good idea may be to put a regulator on the second battery so it can't draw too much from the charging circuit.
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Old 10-18-2004, 01:51 PM   #18
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So it.. makes the charging system not see the battery? You've got me, but i'm going to do some googling on this, now that I kinda have something to go on.


-justin
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Old 10-18-2004, 02:02 PM   #19
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Just in case anyone here is as dumb as me, this is an isolator.


-justin
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Old 10-18-2004, 04:15 PM   #20
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Then in that case i can put a big enough on/off switch for battery current to flow through and then decide which battery to use if that'* ok
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