Chuck, Any way to individually isolate each battery while charging it? Then depending upon the individual battery voltage rating, you could charge them one at a time. PITA, I know, but will get the job done inexpensively while you hunt for the high cost option.
Tom, MS II

Uhhhhhhhhhhh, what is putting out 38V?

Offhand, I can't think of anything on a GMC that should need 38V unless it is possibly a test point on the barbarian circuit board.

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ Since 30 November '53 ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ Member GMCMI and Classics ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~~ k2gkk + hotmail dot com ~~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
|[ ]~~~[][ ][]\
"--OO--[]---O-"



> From: robmueller@iinet.net.au
> To: gmclist@list.gmcnet.org
> Date: Sat, 31 Oct 2015 10:57:03 +1100
> Subject: Re: [GMCnet] Kinda GMC related
>
> Chuck,
>
> You're ELECTRICALLY CHALLENGED just like ME!
>
> Regards,
> Rob M.
> The Pedantic Mechanic
>
>
> -----Original Message-----
> From: Charles Boyd
>
>
> UPDATE ON BATTERY CHARGER
> Johnny Bridges is in town working a show and stopped by to say hi. First thing He said was where is the sick battery charger? He
> opened it up and started trying to explain to me the inner workings using words I wouldn't even try to spell. I did smile and nod
> my head as if I knew exactly what he was talking about. Poked around with his meter saying a few things I picked up on like "that's
> good" and "that ain't right, wait a minute I had it backwards, it's ok to". "Wait a minute, don't like the looks of this, see
> that?" I said I did but I didn't. Then he did some magic with a rag with rubbing alcohol on it and 2 small pieces of tape. He
> plugged it up and it is still working. No kicking off, putting out 38V, and amp meter slowly
> dropping. Thank you Johnny..
> --
> C. Boyd
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

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I can understand your confusion as most these days are 48V. Sorry I didn't mention it was 31 years old.


k2gkk wrote on Fri, 30 October 2015 20:07

Uhhhhhhhhhhh, what is putting out 38V?

Offhand, I can't think of anything on a GMC that should need 38V unless it is possibly a test point on the barbarian circuit board.

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ Since 30 November '53 ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ Member GMCMI and Classics ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~~ k2gkk + hotmail dot com ~~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
|[ ]~~~[][ ][]\
"--OO--[]---O-"



> From: robmueller@iinet.net.au
> To: gmclist@list.gmcnet.org
> Date: Sat, 31 Oct 2015 10:57:03 +1100
> Subject: Re: [GMCnet] Kinda GMC related
>
> Chuck,
>
> You're ELECTRICALLY CHALLENGED just like ME!
>
> Regards,
> Rob M.
> The Pedantic Mechanic
>
>
> -----Original Message-----
> From: Charles Boyd
>
>
> UPDATE ON BATTERY CHARGER
> Johnny Bridges is in town working a show and stopped by to say hi. First thing He said was where is the sick battery charger? He
> opened it up and started trying to explain to me the inner workings using words I wouldn't even try to spell. I did smile and nod
> my head as if I knew exactly what he was talking about. Poked around with his meter saying a few things I picked up on like "that's
> good" and "that ain't right, wait a minute I had it backwards, it's ok to". "Wait a minute, don't like the looks of this, see
> that?" I said I did but I didn't. Then he did some magic with a rag with rubbing alcohol on it and 2 small pieces of tape. He
> plugged it up and it is still working. No kicking off, putting out 38V, and amp meter slowly
> dropping. Thank you Johnny..
> --
> C. Boyd
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

_______________________________________________
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Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

What Chuck didn't post was the Picture of his Kenworth ~~ 30 years old, looks like the day it came out of Paccar.

--johnny

Before we get too deep in the backslappin'.... we all tend to share what we can do. I learnt how to seal up my oil lines this weekend - Chuck understands thing mechanical. And, I would of sworn we did the rear end of Stick's coach, not the front... but I often get things reversed. Stick's "Humble Abode" has a kitchen for Elise that's probably worth more than my house - I >konw< the stove's worth more than my coach .
I'm more than happy to share what little amount of electronic acumen decades of fiddling has gotten me and perhaps save someone else from burning up the same things I've smoked over the years. It's a fair trade for the lessons I've learnt from this group. Usually one man's screwup shared saves five or six guys from doing the same thing.
I'm a little shaky about Chuck's battery charger though. We cleaned up some stuff that needed it, and forestalled (I hope) a potential short.. but nothing about which we cold say "There's the problem and now it's fixed." Which reminds me, Chuck, we didn't take the plug apart that plugs into the cart. Since it got yanked, if you haven't checked it to make sure the wires are tight, you might pop it apart and be sure. If they get loose and touch, it would give the symptoms you had.
When alls you can do is look and prod and say 'Gee I hope that's the trouble' you end up as I did with an Onan card a few weeks back. Rehabbed it and check the parts, but it didn't work on the genset. Hopefully, I'll see it in Dothan or Bean Station where there's a test bed. Obviously I missed something on it.

--johnny

Before we get too deep in the backslappin'.... we all tend to share what we can do. I learnt how to seal up my oil lines this weekend - Chuck understands thing mechanical. And, I would of sworn we did the rear end of Stick's coach, not the front... but I often get things reversed. Stick's "Humble Abode" has a kitchen for Elise that's probably worth more than my house - I >konw< the stove's worth more than my coach .
I'm more than happy to share what little amount of electronic acumen decades of fiddling has gotten me and perhaps save someone else from burning up the same things I've smoked over the years. It's a fair trade for the lessons I've learnt from this group. Usually one man's screwup shared saves five or six guys from doing the same thing.
I'm a little shaky about Chuck's battery charger though. We cleaned up some stuff that needed it, and forestalled (I hope) a potential short.. but nothing about which we cold say "There's the problem and now it's fixed." Which reminds me, Chuck, we didn't take the plug apart that plugs into the cart. Since it got yanked, if you haven't checked it to make sure the wires are tight, you might pop it apart and be sure. If they get loose and touch, it would give the symptoms you had.
When alls you can do is look and prod and say 'Gee I hope that's the trouble' you end up as I did with an Onan card a few weeks back. Rehabbed it and check the parts, but it didn't work on the genset. Hopefully, I'll see it in Dothan or Bean Station where there's a test bed. Obviously I missed something on it.

--johnny