More battery woes
you can't fix stupid!
Joined: Mar 2008
Posts: 1,906
Likes: 2
^^^^^^^agreed! 13.8-14.2 is about the normal range when running.
the other cool thing about having a local shop rebuild it for you is you can have them make it a high output for a couple more dollars. my local guy who is awesome at rebuilding these things made mine go from a 110A to a 145A for like 20 more dollars. and you can also do neat stuff with the housings if you so desire while your waiting for it like this:
the other cool thing about having a local shop rebuild it for you is you can have them make it a high output for a couple more dollars. my local guy who is awesome at rebuilding these things made mine go from a 110A to a 145A for like 20 more dollars. and you can also do neat stuff with the housings if you so desire while your waiting for it like this:
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Senior User
Joined: Jul 2009
Posts: 226
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Well batteries put back in, 12.8 volts of fully charged batteries. Fired up the truck and measured alt charging voltage. Nothing, zip notta Zero.
I would like to thank Ford for putting the alt up in a easy spot to remove. about 3 minutes and it was out.
This getting to know each other thing with my new used truck is getting old.
I would like to thank Ford for putting the alt up in a easy spot to remove. about 3 minutes and it was out.
This getting to know each other thing with my new used truck is getting old.
New User
Joined: Jul 2009
Posts: 6
Likes: 0
The guy was correct...charge the two 12 volt batteries in series with 24 volts [out of the truck only or disconnected from truck stuff!!!]. That makes the two batteries each receive the same charging current. If you don't think so, ask your friend, the electrical engineer. If you do not have a 24 volt charger, then charge in parallel only if the two 12 volt batteries are the same age, type etc; otherwise, although they will see the same charging voltage, the currents will not be the same and one may overcharge or the other undercharge.
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Senior User
Joined: Jul 2009
Posts: 226
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OK Alt tested good. He loaded the crap out of it and it just kept making power. Output lead got hot enough to burn his fingers when he tried to disconnect it.
He then pulled the back off and inspected the brushes, well over half life remaining. I blew out some dust, put it back together and re-tested. Still works. he said possibly a brush got hung up and need a bump to un-stick it.
Test was no-charge so put it back on the truck and see. If it is still not charging he would fix it trouble shooting the whole truck. Pretty cool guy.
Yes the fuse for charging is good in the engine comp fuse box.
He then pulled the back off and inspected the brushes, well over half life remaining. I blew out some dust, put it back together and re-tested. Still works. he said possibly a brush got hung up and need a bump to un-stick it.
Test was no-charge so put it back on the truck and see. If it is still not charging he would fix it trouble shooting the whole truck. Pretty cool guy.
Yes the fuse for charging is good in the engine comp fuse box.
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Senior User
Joined: Jul 2009
Posts: 226
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Hopefully my last update:
Alt installed Cranked up and seems to be charging. 13.8 volts
I am going to go with it for now.
However the reason for battery drain? When I got home from work I walk past the truck that has been in the driveway all day. The freaking Ventilation fan was blowing full blast.
So apparently I have a stuck relay.
Alt installed Cranked up and seems to be charging. 13.8 volts
I am going to go with it for now.
However the reason for battery drain? When I got home from work I walk past the truck that has been in the driveway all day. The freaking Ventilation fan was blowing full blast.
So apparently I have a stuck relay.
Tuned
Joined: Aug 2003
Posts: 366
Likes: 6
From: Webster, Texas
Optima
I hate to act like an upaid sponsor especially for a company that has apparently moved to Mexico but a couple years ago I was tired of changing out my batteries and dealing with acid spill so I went with two Optima Red Tops and never had a problem again.
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Senior User
Joined: Jul 2009
Posts: 226
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Yea well Red tops won't solve my particular problem.
When I am ready for new batteries I will get Hawker Odessy AGM batteries. I run the PC680 in my race car and it gets the crap beat out of it all the time then sits for a month and then goes racing again.
They make big huge models that will easily start the PSD.
When I am ready for new batteries I will get Hawker Odessy AGM batteries. I run the PC680 in my race car and it gets the crap beat out of it all the time then sits for a month and then goes racing again.
They make big huge models that will easily start the PSD.
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kochy54
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Apr 21, 2002 05:31 PM