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Unread 10-19-2013, 12:33 AM   #1
pvfd_1110
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1992 YJ Wrangler 
 
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charging problems.

My alternator will keep the battery charged during normal use but when I use my winch it drains the battery. It is a 880 cca battery and stock alternator. After it drains my battery the alternator will not charge it up no matter how long you let it sit and run I have to put it on a battery charger. Does anyone know the problem.

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Unread 10-19-2013, 01:03 AM   #2
Michaelgoesrawr
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I'd venture to say that the battery is being taxed to much. It's not a deep cycle that is meant to be drained an recharged. Plus you are probably over working the system with too long of pulls.

Just an opinion though. As I'm not really sure what the problem could be.

You could upgrade the alternator, or go to a dual battery setup, or both.
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Unread 10-19-2013, 01:11 AM   #3
pvfd_1110
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I was thinking of doing both but I was still curious as to why the alternator won't charge the battery back up no matter how long you let it sit there and run. When I put the alternator on it my meter says it only charges 12 volts
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Unread 10-19-2013, 01:23 AM   #4
Michaelgoesrawr
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Oh that's something you should've included in your original post. The alternator needs to be at 14 volts. Something isn't right with that. My not so useful ness has ran out. That's all I know on the subject but I'm interested in what other people say
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Unread 10-19-2013, 11:00 AM   #5
dancytron
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What have you done to upgrade the wiring? In particular, grounding the alternator and improving the link between the battery positive terminal and the alternator batt+ terminal.
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Unread 10-19-2013, 11:25 AM   #6
Michaelgoesrawr
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Quote:
Originally Posted by dancytron
What have you done to upgrade the wiring? In particular, grounding the alternator and improving the link between the battery positive terminal and the alternator batt+ terminal.
If he took the readings directly off the alt, do you think the ground could cause the low charge rate? I think at that point the ground would be really hot because it's restricting so much current.
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