| Re: [GMCnet] replacement battery questions [message #323344 is a reply to message #323319] |
Mon, 04 September 2017 19:36   |
GMC Cruse
Messages: 606
Registered: June 2009
Location: SE Michigan
Karma: 3
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Senior Member |
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Deb wrote on Mon, 04 September 2017 16:06Thanks Bruce. But I have side mount cables and I am needing to fix onto a top-post battery (the Interstate) I wish it was the other way around. Would be a bit easier with those adapters!
Other way around adapters are available. I have a pair.
Mike K.
'75 PB
Southeast Michigan
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| Re: [GMCnet] replacement battery questions [message #323351 is a reply to message #323344] |
Mon, 04 September 2017 21:01 |
Deb
Messages: 349
Registered: October 2016
Location: Logan Lake, BC
Karma: 2
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GMC Cruse wrote on Mon, 04 September 2017 17:36Deb wrote on Mon, 04 September 2017 16:06Thanks Bruce. But I have side mount cables and I am needing to fix onto a top-post battery (the Interstate) I wish it was the other way around. Would be a bit easier with those adapters!
Other way around adapters are available. I have a pair.
Hi Mike. How do you find them? Any significant loss that you notice? My other option is to get new cables or replace the connections with top-post. Looks like I might have enough length to get away with replacing the connectors. This Interstate is a very strong battery right now. I'm doing a slow charge on it just to top it off and see what the full volts are. But it was 12.8 when I checked it this morning.
Deb McWade
Logan Lake, BC, CAN
GMC Alumnus
It's Bigger on the Inside!
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| Re: replacement battery questions [message #323352 is a reply to message #323294] |
Mon, 04 September 2017 21:05 |
kingd
Messages: 592
Registered: June 2004
Karma: 2
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Deb, the $479.99 Canadian Tire AGM battery claims the same AMP/HOURS (220)as the golf
cart batteries I've seen. 4 year warranty. Don't know if that is pro rated.
On the Canadian Tire webs site the details for this battery make it sound very suitable for
an application that is not used frequently.
I have no Financial or other interest in Canadian Tire.
DAVE KING
lurker, wannabe
Toronto, Ontario, Canada
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| Re: [GMCnet] replacement battery questions [message #323353 is a reply to message #323335] |
Mon, 04 September 2017 21:08 |
Deb
Messages: 349
Registered: October 2016
Location: Logan Lake, BC
Karma: 2
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Don A wrote on Mon, 04 September 2017 15:56
and by the way, you might want to hold off on getting those house batteries until closer to Spring, so they are not just sitting around.
That's a thought. I'll see how that 12V marine/RV deep cycle I got from my neighbour holds a charge. I'm planning on heading out for one last chance at a Hurrah the weekend of the 23/24th, so I will need something back there. If that battery takes and holds a good charge, maybe I will hold off and just use that for now.
Deb McWade
Logan Lake, BC, CAN
GMC Alumnus
It's Bigger on the Inside!
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| Re: [GMCnet] replacement battery questions [message #323356 is a reply to message #323353] |
Mon, 04 September 2017 21:56 |
Deb
Messages: 349
Registered: October 2016
Location: Logan Lake, BC
Karma: 2
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Just checked the Interstate - fully charged - 13.45V. I'll check it again tomorrow morning after the surface charge has had a chance to dissipate - but looks good!
Not holding much hope on the old 12V rv batt from my neighbour. On the charger for 2 1/2 hours now and hasn't budged. But it might take a few more hours to start to register. We'll see by morning.
Deb McWade
Logan Lake, BC, CAN
GMC Alumnus
It's Bigger on the Inside!
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| Re: [GMCnet] replacement battery questions [message #323363 is a reply to message #323304] |
Tue, 05 September 2017 00:10 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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I am working on a Sears Die Hard RV / marine battery that was in a coach parked for 18 years. I put a slow charge into it yesterday and today 24 hours later it is up to 12.6 volts and taking a charge at a 4 amp rate. I slowed down the charge to 2 amps this evening and will leave it there for another 2 days or so. I have it in the engine position at the moment and was able to run the headlights with only a .3 volt drop at the battery. I have not tried the starter because I'm not ready to crank this engine over yet.
I have been successful at recovering some old batteries in the past and this one looks promising.
Just because they are old does not necessarily mean that they are bad.
My last set of golf cart batteries lasted 9 years and were not bad when I replaced them. I broke a post loose inside one battery while trying to remove a cable to clean it.
That was a $180 lesson learned the hard way.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] replacement battery questions [message #323368 is a reply to message #323363] |
Tue, 05 September 2017 05:53 |
Bruce Hart
Messages: 1500
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Deb,
If you have an AGM Interstate , don't you have 3/8" studs sticking out of
the top of the battery. If so you can use one of these:
https://www.napaonline.com/en/p/PHI86421
On Mon, Sep 4, 2017 at 11:10 PM, Ken Burton wrote:
> I am working on a Sears Die Hard RV / marine battery that was in a coach
> parked for 18 years. I put a slow charge into it yesterday and today 24
> hours later it is up to 12.6 volts and taking a charge at a 4 amp rate. I
> slowed down the charge to 2 amps this evening and will leave it there for
> another 2 days or so. I have it in the engine position at the moment and
> was able to run the headlights with only a .3 volt drop at the battery. I
> have not tried the starter because I'm not ready to crank this engine over
> yet.
>
> I have been successful at recovering some old batteries in the past and
> this one looks promising.
>
> Just because they are old does not necessarily mean that they are bad.
>
> My last set of golf cart batteries lasted 9 years and were not bad when I
> replaced them. I broke a post loose inside one battery while trying to
> remove a cable to clean it.
>
> That was a $180 lesson learned the hard way.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: replacement battery questions [message #323379 is a reply to message #323294] |
Tue, 05 September 2017 09:30 |
kingd
Messages: 592
Registered: June 2004
Karma: 2
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Matt, when I look at specs for golf cart batteries, I see 220-232
amp hour rating at the 20hr rate. Am I comparing apples and oranges ??
DK
DAVE KING
lurker, wannabe
Toronto, Ontario, Canada
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| Re: replacement battery questions [message #323380 is a reply to message #323294] |
Tue, 05 September 2017 09:33 |
kingd
Messages: 592
Registered: June 2004
Karma: 2
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Ken Burton, would you mind sharing your process for "restoring" an old discharged battery ?
Inquiring minds would like to know.
DAVE KING
lurker, wannabe
Toronto, Ontario, Canada
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| Re: [GMCnet] replacement battery questions [message #323391 is a reply to message #323389] |
Tue, 05 September 2017 11:10 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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Even the GC2s require at least a SMALL gorilla!
D C "Mac" Macdonald
Amateur Radio K2GKK
Since 30 November '53
USAF and FAA, Retired
Member GMCMI & Classics
Oklahoma City, OK
"The Money Pit"
TZE166V101966
'76 ex-Palm Beach
k2gkk + hotmail dot com
________________________________
From: Gmclist on behalf of Matt Colie
Sent: Tuesday, September 5, 2017 11:04
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] replacement battery questions
kingd wrote on Tue, 05 September 2017 10:30
> Matt, when I look at specs for golf cart batteries, I see 220-232
> amp hour rating at the 20hr rate. Am I comparing apples and oranges ??
> DK
Dave,
The simple answer is - Yes.
Golf cart batteries are usually 6 or 8 volt. So, if you use the 3 hole kind you need two to make a 12VDC bank.
The AGM referenced was only 102AH.
The singular advantage of using a pair of GC2 instead of a single 8D is that you don't need to hire a gorilla to move the two pieces.
Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
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| Re: [GMCnet] replacement battery questions [message #323425 is a reply to message #323351] |
Tue, 05 September 2017 21:05 |
GMC Cruse
Messages: 606
Registered: June 2009
Location: SE Michigan
Karma: 3
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Deb wrote on Mon, 04 September 2017 22:01GMC Cruse wrote on Mon, 04 September 2017 17:36Deb wrote on Mon, 04 September 2017 16:06Thanks Bruce. But I have side mount cables and I am needing to fix onto a top-post battery (the Interstate) I wish it was the other way around. Would be a bit easier with those adapters!
Other way around adapters are available. I have a pair.
Hi Mike. How do you find them? Any significant loss that you notice? My other option is to get new cables or replace the connections with top-post. Looks like I might have enough length to get away with replacing the connectors. This Interstate is a very strong battery right now. I'm doing a slow charge on it just to top it off and see what the full volts are. But it was 12.8 when I checked it this morning.
They are available at NAPA near you. I only used them for short periods to use a single good battery start and move my many cars around.
https://www.napacanada.com/en/p/GRO829132
Mike K.
'75 PB
Southeast Michigan
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| Re: replacement battery questions [message #323428 is a reply to message #323380] |
Tue, 05 September 2017 23:12 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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kingd wrote on Tue, 05 September 2017 09:33Ken Burton, would you mind sharing your process for "restoring" an old discharged battery ?
Inquiring minds would like to know.
It is a secret and if I tell you then everyone will know.
Actually, all I usually do is put a slow charge into them and check them at least every 24 hours. Once they start drawing current, depending on the size, I usually keep the charge level below 4 amps. Sometimes it takes several days for one to start taking a charge. The key is to keep the charge rate low for a long time.
The one that I was working on is at least 18 years old and it now sitting at 12.59 volts. I will eventually also put a load tester on it. I have hooked it up to the coach on the engine side and it appears to take various loads just fine.
I found a second battery today installed in this same coach. It is what I think is an 8D of the same age. It fills the entire rear battery compartment. Tomorrow I will try to drag it out of there. I know it is to heavy for me to lift. The problem is the coach is parked against the wall and I do not have much room to work back there. I started charging it tonight on a slow charge. It was only drawing .3 amps. We will see if anything changes tomorrow. I really need to add water or at least check it before I go much farther. I had a battery filler in my garage at home. If I find it I may use that instead of pulling the battery. This one is going to take days at this rate.
If it has a dead cell the first thing to do is to use a de-sulfator. That is safe and that usually works.
I AM NOT RECOMMENDING THE FOLLOWING!
DO NOT DO THE FOLLOWING. I really have misgivings about posting this.
When the desulfator doesn't work I sometimes hit it with an arc welder VERY BRIEFLY about 1/4 second or less. THIS IS VERY DANGEROUS and can blow up in your face. I only do it after a battery has been allowed to vent with the caps removed for 24 hours or more. I set the battery outside and run the cables inside. I attach the cables to the battery and go back inside. Then I attach the cables to the hot welder set on the lowest setting for 1/4 to 1/2 second.
If that does not fix it I give up and scrap the battery.
The above is for information purposes only. Do NOT do it. I' m really worried that someone will blow one up in their face and blind themselves.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: replacement battery questions [message #323437 is a reply to message #323433] |
Wed, 06 September 2017 10:39 |
Justin Brady
Messages: 769
Registered: April 2015
Location: Bell Buckle, TN
Karma: 11
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Senior Member |
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Most newer converters (PD included) have a desulfate feature where they will run high voltage for a few seconds a few times per hour to help keep batteries in good shape. Not sure if they are effective enough to revive a dead one though.
PD Specs:
13.2 volts with a 15 minute 14.4-volt burst every 21 hours
Justin Brady
http://www.thegmcrv.com/
1976 Palm Beach 455
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| Re: replacement battery questions [message #323448 is a reply to message #323294] |
Wed, 06 September 2017 16:49 |
kingd
Messages: 592
Registered: June 2004
Karma: 2
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Senior Member |
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Ken Burton, thanks for the info. I don't have an arc welder so I won't be trying that.
I have had a battery explode while trying to boost a car that had a dead battery. May have
been the sudden big current flow going into the dead battery. It was quite exciting, BOOM
and battery bits all over the place including on me.I was outside with some people when this happened
and they instantly turned on a garden hose an hosed me and my clothes down. I lost a T shirt to the
acid but no damage to me. I'm more careful now.
DAVE KING
lurker, wannabe
Toronto, Ontario, Canada
[Updated on: Fri, 08 September 2017 16:31] Report message to a moderator |
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