Forum Discussion

Explorer

Jul 22, 2015

Installing (6) 6volt Batteries - Is My Wiring Diagram OK

I previously posted a question regarding installing (4) 6Volt batteries in my 30’ class A MH…..smkettner was most helpful in dialing it in to make it work. I come back to the forum for additional help after spending 2 weeks in the boondocks. I found that I needed more battery power.

After sizing up all the places to put as many 6Volt batteries as I can, I found that I could actually install a total of (6) 6Volt batteries in the coach. There are 2 separate battery compartments 6 feet from each other. One holds (2) 6Volt batteries the second holds (4) 6Volt batteries.

I’ve put a wiring diagram together and hope that the system is balanced the way I have shown. Is there any problem or advantage in grounding the system at 2 separate distant points #14 and #15 (approx. 6 feet apart)?

Again, many thanks for those who know their stuff!

14 Replies

doughere
Explorer
Jul 23, 2015
wa8yxm wrote:
Looks good to me. I keep hearing about that "More load" stuff.. Yup, True, but how much different is it. 1% 0.1%, 0.001% I doubt it will hit more than 1% so do not worry about it (And that only if you have like 5,000 watts of inverter sucking power).

I guess its worth the extra effort to put an extra ground in if its only going to degrade the performance a little bit.

Doug
BFL13
Explorer II
Jul 23, 2015
If you have a Trimetric then your chassis ground goes to its shunt and then you have to go from the other end of the shunt to a battery bank neg.

The rest of the negs from inverters, converters, solar, etc also go to the shunt, so which battery neg gets the neg from the shunt can depend on the location the other things that go on the Trimetric shunt and so the location of the shunt.
wa8yxm
Explorer III
Jul 23, 2015
Looks good to me. I keep hearing about that "More load" stuff.. Yup, True, but how much different is it. 1% 0.1%, 0.001% I doubt it will hit more than 1% so do not worry about it (And that only if you have like 5,000 watts of inverter sucking power).
doughere
Explorer
Jul 23, 2015
If you ground it at both 14 and 15, the 4 batteries at the 15 end will wind up carrying more of the load. Grounded at 14 only will give a better balance.

Doug