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Electrical Discussion of preventative/corrective maintenance and other technical issues regarding your coach's electrical system.

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  #311  
Old 11-19-2012
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RGloverii RGloverii is offline
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I am quite envious of the 16 batteries! Totally awesome (and probably overkill). Heck, I'd love to have half that in my SP! Guess I need to build a rack in a basement bay so I can catch up!
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Robert Glover, II
91 SP36
"SilverLining"
Linden, Michigan
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  #312  
Old 11-19-2012
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tulipvendor50 tulipvendor50 is offline
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Default wiring,batterys,alternators,bring em on!

Tommy:
With you stating that the batteries are Group 31, this would mean that all of the batteries are 12 volt. Correct?
This would mean that all of them are wired in parallel.

If you do not have a proper battery checker - something that would load the battery, you should take it to Interstate and have them check each battery.
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1972 Boler "Sad Shack"
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  #313  
Old 11-19-2012
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Ernie, Robert & Bill;

My coach was a special order with a household reefer and electric water heater, with "dry camping" in mind which I have never done and don't want to. I assume all the batteries (12 volts) are parallel since I don't have a genny battery. 4 batteries in the engine compartment, 8 in the curb-side slide out bay and 4 in the street-side compartment under the reefer. The ancient Heart Inverter has never been used, by me at least and I've been afraid to because the P.O. made a note, before having it "fixed" (when the coach was about 4 years old) noted in his log that it would overheat and smoke.

I probably need to take it out, cut down on the number of batteries and buy a pure sine inverter that would at least power the reefer while we are rolling.

The engine will indeed start on the first click, if I have run the electric pre-heat long enough to warm up pipes. Cold start, which I don't usually do if the ambient temp is 60 degrees or below, usually is about one short grind.

With the cost of all those batteries ($100.00 each) and the new converters, kinda got me uneasy.....I don't want to replace either right now.

Taking it to an Interstate Dealer might be a good idea.
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1994 WLWB 40/2001 Honda CRV
FMCA #F31522
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  #314  
Old 11-19-2012
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Tommy, Ed has an almost new battery tester.
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2000 LX
Vise Grips
Bellefonte, AR
F127656
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  #315  
Old 11-19-2012
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RGloverii RGloverii is offline
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Yes, if you have that many batteries wired in parallel, one bad battery can throw off the charger. Once you have found the bad battery (I'm hoping its only one), you should periodically run an equalize on the battery bank to make sure they are all fully charged.

Now that I think about it, you'll need a fairly modern charger to perform battery equalization. I don't think your chargers have that function. Basically, equalizing the battery bank is sort of a brief overcharge, allowing all of the batteries to charge up to the same full level.

Anyone who has a large battery bank should perform that function periodically to keep their batteries in sync.
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Robert Glover, II
91 SP36
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  #316  
Old 11-19-2012
George Roberts George Roberts is offline
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I would check all connections before doing too much. Of course you have to disconnect each one, one at a time to check them if you do that you will by default check all connections.
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1994 WLWB 40' "No Reservations"
Towed: 2008 Jeep Sahara Limited Hardtop 4X 4
Fruita Colorado
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  #317  
Old 11-20-2012
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Robert:
I believe those chargers to be 80A chargers not 80 watt chargers.
If it has the equalization feature on it, it would be sufficient.
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1972 Boler "Sad Shack"
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  #318  
Old 11-20-2012
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Ed Wimberley Ed Wimberley is offline
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Tommy
Yes I have Rick's battery tester here ,Rick left it last time he was here.
We can test your batteries next visit using Rick's tester,just don't tell Rick
we're using it

THANKS RICK
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  #319  
Old 11-20-2012
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Robert, you are right its 80 Amps, not Watts.
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1994 WLWB 40/2001 Honda CRV
FMCA #F31522
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  #320  
Old 11-20-2012
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Okey dokey WOGERs

Spent the day checking my batteries 4 in engine compartment and 8 in curb-side battery compartment - sprayed on battery cleaner, removed cables, one at a time and cleaned, using a wire brush device (one side for the cable connection and the other for the post) and reconnected. All nice and pretty now. I did find one of the curb-side batteries to have a slight acid leak via a very small pin hole at the base of the terminal post. Ordered a new Interstate Workaholic and will replace it Monday or Tuesday.

Interesting - as soon as I got all the terminals and cable connectors cleaned up and reattached, dash meter jumped back up to a "hair" shy of 14 volts of course I stll have the "leaking" battery which I will keep clean until I can get the replacement installed.

My plans are to have the batteries in the streetside bay under the reefer and the old and moldy Heart Inverter removed. That will shed a few pounds.

Thanks y'all
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