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Topic: Battery Cable Lugs (Read 1248 times) previous topic - next topic

Re: Battery Cable Lugs

Reply #25 –
MT Ted,

Why is the start battery connected to the coach batteries?
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Battery Cable Lugs

Reply #26 –
Good eyes!

P
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)

Re: Battery Cable Lugs

Reply #27 –
Quote from: craneman –
MT Ted,

Why is the start battery connected to the coach batteries?
I have no idea. I had the batteries out when I put the new battery box in. I took pics and put it all back the way it was. My solar panel control board says, house batteries 16.2 volts, start battery 13.2 volts, all the time.
92 Grand Villa
Silver 6v92
 side isle.
build# 3973

Re: Battery Cable Lugs

Reply #28 –
Quote from: craneman –
MT Ted,

Why is the start battery connected to the coach batteries?
The grounds are connected together so you only need one "Boost" relay.

After yesterdays high level discussion regarding batteries, we have decided there is no cost saving trying to mix and match battery sizes and we're going to replace the group 24 and the AGM battery that looks like it belongs in an emergency light with (3) 8D flooded cell batteries.  We agree that AGM and Gel technologies are much more vibration resistance and the Optima spiral plate technology really is top of the line, however we see no need for batteries that will out live us.

Plus the Siata takes a group 24.
1992 Foretravel Grand Villa
U225 SBID Build No. 4134
1986 Rockwood Driftwood
1968 S.I.A.T.A. Spring
1962 Studebaker Lark
1986 Honda VF700C
1983 Honda VF750C
Charlie, the Dog was broken out of jail 24 Oct 2023
N1RPN
AA1OH (H)e who must be obeyed.
 

Re: Battery Cable Lugs

Reply #29 –
Quote from: MT Ted –
I have no idea. I had the batteries out when I put the new battery box in. I took pics and put it all back the way it was. My solar panel control board says, house batteries 16.2 volts, start battery 13.2 volts, all the time.

I would recheck those pictures.  Even if wired this way when you bought the rv, this does not mean they are wired correctly.

Previous owner may have been trying get by with a weak battery.

At the least it is worth having someone with knowledge of your system check it out in person, and advise you.

With that high of a charge voltage it might also be worth updating your posibly 27 year old charger.

It is so much easier to spend others money, than my own.  Good luck with your replacements.  So it sounds like lifepo4 batteries are out, just kidding. 

I just went thru some of your conclusions and decided to go with 3 Oriellys AGM 8ds.  With a military discount, they seemed reasonable until I get some idea of my needs of how much I'll be plugged in compared to not.

Two yrs ago I put in used East Penn AGM 8Ds, until I knew my usage requirements, and after 2 yrs, I am still not sure.
97 U295 40, Build #5040, 6C8.3 325 HP
Oregon Continuous Traveler
Samsung Residential #RF20HFENBSR,
Xantrex SW2012, (3)AGM8D Hse, (2)AGM Grp24 Eng, Victron BMV-712, 1800w Solar 4 LG & 2 Sunpower
Extreme Full Body Pt w/hdlmps, new furn/floor, 4 down Lexus 2004 GX470 AWD curb weight 4,740 lbs
Prev: 1990 Barth, 10L 300 2 yrs; 91&92 Monaco Signature, 10 yrs, 10L C 300 &  6C8.3 300; 1997 ForeT 6C8.3 325 since May 2017.  Employed by Guaranty RV 14+ yrs.  Former VW New Car Dlr/Service Dlr, Sales Mgr, Rv Sales, and Service Adviser from 1968-2017
"Don't criticize what you can't understand" Bob Dylan