House Battery Replacement

T

travism

New member
Jan 18, 2000
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> Emory, Tom, Mark, Bill, and all,
>
> Thanks for the replies ... I have another question. When you connect two
6
> volt golf cart batteries in series, does it also double the Amp Hours and
> Reserve Capacities like the voltage does?
>
> ie: 6v + 6v = 12v
>
> Thanks for the help ...
>
> HR in Indy 77PB

No, when wired in series, the voltages add but the amps do not; in parallel,
the amps add but the voltages do not. The same goes for amp-hours.

That is to say, if you had two 6 volt 200 amp-hour batteries, if you wired
them in series, you would have the equivalent of a 12 volt 200 amp hour
battery. If you wired them in parallel, you would have the equivalent of a 6
volt 400 amp hour battery. Two batteries still gives twice the power (power,
expressed in watts, is equal to volts times amps...)

Travis
 
I have a 77 Palm Beach, with the original configuration of the house battery
location and wiring connections. It is located in the generator compartment.
I plan to keep the present configuration.

The house battery needs to be replaced, so I would appreciate suggestions on
what the specs (mfg; amp-hr rating; type; ?) ,should be for a
good/(economical?) replacement?

Thanks in advance for you help ....

HR in Indy 77PB
9675.0203
 
>I have a 77 Palm Beach, with the original configuration of the house battery
>location and wiring connections. It is located in the generator compartment.
>I plan to keep the present configuration.
>
>The house battery needs to be replaced, so I would appreciate suggestions on
>what the specs (mfg; amp-hr rating; type; ?) ,should be for a
>good/(economical?) replacement?
>
>Thanks in advance for you help ....
>
>HR in Indy 77PB

I would suggest using two six volt golf cart batteries in series.
This will give more capacity than the single 6 volt one originally
used and they have a deep discharge capacity that is more suitable
for use as the power for the living area of the GMC. You can see
some info on this at
http://www.california.com/~eagle/chassis.html

Emery Stora
77 Kingsley
Santa Fe, NM
 
>
> Em I do respect what you have suggested except for one very important point. The double golf cart batteries are very difficult to service and check for water level since they are connected in SERIES(which means a connecting strap between the two batteries) and the battery posts are not easy to get at. To get them out to adequately check them on a regular basis is not easy. That means that after the first time most people neglect them. I would only install two golf cart batteries if I also installed a sliding battery tray similar to the one Darren Paget sells.
>
> And another thing I am not convinced there is enough difference between two 6 volt golf cart batteries in series and one interstate USRM8D deep cycle battery (and yes contrary to what every one has previously said it is a deep cycle battery)which I just installed. This battery has both terminals on the outside end of the battery which makes it very easy to remove the terminals and slide the battery out far enough to check the levels.
>
> Not to argue but think that before chosing either battery type you should look at these two sites to compare the two batteries.
>
> (USRM8D) http://www.interstatebatteries.com/products/product_line/industrial_other/multi_deepcycle.htm
>
> (Golf cart) http://www.interstatebatteries.com/products/product_line/industrial_other/golfcar.htm
>
> just my opinion and my personal choice after looking at both.
>
> regards,
>
> tom
>

> >In a message dated 8/19/00 10:15:05 PM US Eastern Standard Time,

> >
> > > I would suggest using two six volt golf cart batteries in series.
> > This will give more capacity than the single 6 volt one originally
> > used and they have a deep discharge capacity that is more suitable
> > for use as the power for the living area of the GMC. You can see
> > some info on this at
> > http://www.california.com/~eagle/chassis.html
> >
> > Emery Stora >>
> >In the intrest of peace, and my respect for your ability I'm going to keep my
> >mouth shut on parellel trolling batteries.
> >Mark A
> >
> >---------------------------------------------------------------------
> >To unsubscribe, e-mail: gmcmotorhome-unsubscribe
> >For additional commands, e-mail: gmcmotorhome-help
> >
> >
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: gmcmotorhome-unsubscribe
> For additional commands, e-mail: gmcmotorhome-help
 
> Em I do respect what you have suggested except for one very important point. The double golf cart batteries are very difficult to service and check for water level since they are connected in SERIES(which means a connecting strap between the two batteries) and the battery posts are not easy to get at. To get them out to adequately check them on a regular basis is not easy. That means that after the first time most people neglect them. I would only install two golf cart batteries if I also installed a sliding battery tray similar to the one Darren Paget sells.
>

Tom,
I agree with you. If you have two golf cart batteries, or I guess two of any type battery in the rear battery compartment, you have to have a slide out tray. I now have a stainless steel battery tray that I got from Darren. Nice piece of work!

I don't know enough about the logic of one 12 volt deep cycle vs two golf cart batteries. I do wonder if the 12 volt deep cycle is so good, then why don't they put those in golf carts?

I have two golf cart batteries now, with the previously mentioned Darren's slide out tray, and have dry camped for three days with out difficulty. That includes running a large inverter for the large TV, DVD, VCR, coffee maker and a 120 vac table lamp, as well as the assorted DC lights, fans and furnace.

For me, I'll stick with the golf cart batteries. They work for me. I had two Interstate 12 volt deep cycle batteries and they died on me last year. Yes I think it was that old Ferro converter that did them in. I had the coach plugged in all the time last Summer. I didn't have a slide out tray. I couldn't check the water. They boiled dry! I didn't know better!

Now I have two golf cart batteries and a Statpower TC40. I'm happy with my setup. I don't have to disconnect anything to service the batteries. I can check the water now. It's a snap to add water when need.

On the other hand if I didn't have the slide out battery tray, then it would be another matter.

Richard Waters
1976 PB
 
Dear "9675.0203"
or HR in Indy

......you are allowed to use your name.

Go to:
http://www.gmcws.org/tech.htm

Click on August. This might be a place to start.

Mike Beaton
Antigonish NS

> The house battery needs to be replaced, so I would appreciate suggestions on
> what the specs (mfg; amp-hr rating; type; ?) ,should be for a
> good/(economical?) replacement?
>
 
C'mon, Mark,
Let's hear it for parallel trolling batteries. You could be onto something
BIG!!!!!!!!

Roger
 
C'mon, Mark,
Let's hear it about the parallel trolling batteries. You may be onto
something BIG!!!!!!!

Roger
 
Emory, Tom, Mark, Bill, and all,

Thanks for the replies ... I have another question. When you connect two 6
volt golf cart batteries in series, does it also double the Amp Hours and
Reserve Capacities like the voltage does?

ie: 6v + 6v = 12v

Thanks for the help ...

HR in Indy 77PB
9675.0203
 
Doubling the batteries doubles the power but not the amps. Amp-hours is
generally the amount of current the battery will provide. It is usually
measured over a 20 hour period, a 220 AH battery will deliver 11 amps for 20
hours.

Dave Mumert

----- Original Message -----
From: "9675.0203"
To: "GMC net Mail List"
Sent: Sunday, August 20, 2000 8:46 AM
Subject: Re: GMC: House Battery Replacement

> Emory, Tom, Mark, Bill, and all,
>
> Thanks for the replies ... I have another question. When you connect two
6
> volt golf cart batteries in series, does it also double the Amp Hours and
> Reserve Capacities like the voltage does?
>
>
 
Ample Power in Seattle has a web site that provides a lot of good
information about batteries and their care. They also have some products to
eliminate combiners and to provide multistage regulation to the standard
alternator.

http://www.amplepower.com/

Dave Mumert
 
>Emory, Tom, Mark, Bill, and all,
>
>Thanks for the replies ... I have another question. When you connect two 6
>volt golf cart batteries in series, does it also double the Amp Hours and
>Reserve Capacities like the voltage does?
>
>ie: 6v + 6v = 12v
>
>Thanks for the help ...
>
>HR in Indy 77PB
>9675.0203

HR - the amp hours is the amount of energy that a single battery will
supply. If you put two 6 volt batteries in series the capacity of
the batteries is additive, ie you have the sum of the amp hours of
each battery.

The same applies to the Reserve Capacity. (X + X = 2X)

Emery Stora
77 Kingsley
Santa Fe, NM
 
The energy stored in a battery is equal to the amp/hour rating times
voltage. Power = amps times volts.

A 12 volt 220 AH battery has 2640 watt hours of power (12 x 220). It will
supply 132 watts for 20 hours.

A 6 volt 220 AH battery has 1320 watt hours of power (6 X 220). It will
supply 66 watts for 20 hours.

A 12 volt battery pack made up of 2, 220 AH 6 volt batteries wired in series
will supply (6 X 2 X 220) 2640 watt hours of power.

Power is additive not Amp/hours.

A 12 volt 220 AH battery will deliver 132 watts for 20 hours but it will not
deliver 1320 watts for 2 hours. See Ample Power web site
http://www.amplepower.com/pwrnews/beer/index.html

Ample Power seems to indicate that the charging system is at least as
important as your battery selection. I tend to agree, you cannot get power
out of a battery if you haven't put it in first. The best thing you can do
for your battery is get a Statpower 40 or similar charger. You may even
want to replace the internal alternator regulator with a real external
regulator.

Dave Mumert

----- Original Message -----

> >Emory, Tom, Mark, Bill, and all,
> >
> >Thanks for the replies ... I have another question. When you connect two
6
> >volt golf cart batteries in series, does it also double the Amp Hours and
> >Reserve Capacities like the voltage does?
> >
> >ie: 6v + 6v = 12v
> >
> >Thanks for the help ...
> >
>
 
For those of you who do not have a way to check the two series
batteries, please contact Darren Paget. He makes the finest
stainless drawer that you can get. You can open the panel where the
generator is, and pull out the battery tray. Then have a good time
checking the batteries. They work great. Way to go Darren. Love
mine.
al

>Em I do respect what you have suggested except for one very
>important point. The double golf cart batteries are very difficult
>to service and check for water level since they are connected in
>SERIES(which means a connecting strap between the two batteries) and
>the battery posts are not easy to get at. To get them out to
>adequately check them on a regular basis is not easy. That means
>that after the first time most people neglect them. I would only
>install two golf cart batteries if I also installed a sliding
>battery tray similar to the one Darren Paget sells.
>
>And another thing I am not convinced there is enough difference
>between two 6 volt golf cart batteries in series and one interstate
>USRM8D deep cycle battery (and yes contrary to what every one has
>previously said it is a deep cycle battery)which I just installed.
>This battery has both terminals on the outside end of the battery
>which makes it very easy to remove the terminals and slide the
>battery out far enough to check the levels.
>
 
Hi Tom

The picture on Darren's web page shows the tray with two golf cart batteries
mounted. My tray easily holds the two batteries and it is easy to add water
and check connections.

Sorry Darren, I didn't buy it from you because the PO has generously
provided it along with the two batteries.

Dave Mumert

----- Original Message -----
From: "tom warner"
To:
Sent: Sunday, August 20, 2000 9:27 PM
Subject: Re: GMC: House Battery Replacement

> And now for the pointed question. Is there enough vertical room for
Darrens slide out battery tray and the golf cart batteries. They are much
higher then the 8D deep cycle I have just installed.
 
One of the specifications often neglected is the number of recharge cycles,
the golf cart batts, is much higher.

gene

>
>> Emory, Tom, Mark, Bill, and all,
>>
>> Thanks for the replies ... I have another question. When you connect two
>6
>> volt golf cart batteries in series, does it also double the Amp Hours and
>> Reserve Capacities like the voltage does?
>>
>> ie: 6v + 6v = 12v
>>
>> Thanks for the help ...
>>
>> HR in Indy 77PB
>
>
>No, when wired in series, the voltages add but the amps do not; in parallel,
>the amps add but the voltages do not. The same goes for amp-hours.
>
>That is to say, if you had two 6 volt 200 amp-hour batteries, if you wired
>them in series, you would have the equivalent of a 12 volt 200 amp hour
>battery. If you wired them in parallel, you would have the equivalent of a 6
>volt 400 amp hour battery. Two batteries still gives twice the power (power,
>expressed in watts, is equal to volts times amps...)
>
>Travis
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: gmcmotorhome-unsubscribe
>For additional commands, e-mail: gmcmotorhome-help
>
>
gene fisher 76 PB/OR/CA
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
 
>For those of you who do not have a way to check the two series batteries,
>please contact Darren Paget. He makes the finest stainless drawer that
>you can get. You can open the panel where the generator is, and pull out
>the battery tray. Then have a good time checking the batteries. They
>work great. Way to go Darren. Love mine.
>al

Me too! Solved a ten year problem.

Marion Hope
77 Kingsley

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
George M.(Marion) Hope, Ph.D.
1930 SW 19th Way gmhope
Gainesville, FL 32608 gmhope
(352) 371-2795 (Home) (352) 846-2111 (Office)
 
>And now for the pointed question. Is there enough vertical room for
>Darrens slide out battery tray and the golf cart batteries. They are much
>higher then the 8D deep cycle I have just installed.

Mine fit with a couple of inches to spare in all directions.

Cheers,
Marion Hope
77 Kingsley

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
George M.(Marion) Hope, Ph.D.
1930 SW 19th Way gmhope
Gainesville, FL 32608 gmhope
(352) 371-2795 (Home) (352) 846-2111 (Office)
 
>And now for the pointed question. Is there enough vertical room for
>Darrens slide out battery tray and the golf cart batteries. They are
>much higher then the 8D deep cycle I have just installed.
>
>tom
Darren's tray does not need much clearance. I believe it is just
about 1/2 inch or perhaps 5/8" higher than the base plate. It is
sooooo strong and the batteries can be extended all the way to be
checked. Ask Darren any specifics.
al
 
To:
> Issue 57
> 1493 by: Emery L. Stora
> 1495 by: Toomuchjavaman.aol.com
> 1496 by: tom warner
> 1497 by: BILL TYRRELL
> Issue 58
> 1499 by: Richard Waters
> 1504 by: Homebase
> 1509 by: Roger
> 1510 by: Roger
> 1512 by: Dave Mumert
> 1514 by: Dave Mumert
> 1516 by: Emery L. Stora
> 1522 by: Dave Mumert
> 1525 by: Travis Martin
Any one else I've mised

Thanks for all the information. I am on the digest, so I didn't have all
the inputs on my first reply.

HR in Indy 77PB
9675.0203
 
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