CA Traveler
The Western States
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Joined: 01/03/2004
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I should have added that the inverter is 2000W and can draw up to 166A steady state, not that I push those limits. It also regularly charges at 100A so I need a heavy duty disconnect switch. Perhaps the Blue Sea in the above link.
Unfortunately the design of this rig does not allow the the charger/inverter to be close to the batteries. I estimate that the negative lead is 20' and the positive lead 30' so anything that I introduce in the circuit has to be the lowest possible resistance.
2009 Holiday Rambler 42 Scepter with ISL 400 Cummins
2004 Honda CR-V
Bob
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Chris
Shelter Bay, Wa
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Joined: 12/19/2000
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CA Traveler wrote:I should have added that the inverter is 2000W and can draw up to 166A steady state, not that I push those limits. It also regularly charges at 100A so I need a heavy duty disconnect switch. Perhaps the Blue Sea in the above link.
Unfortunately the design of this rig does not allow the the charger/inverter to be close to the batteries. I estimate that the negative lead is 20' and the positive lead 30' so anything that I introduce in the circuit has to be the lowest possible resistance.
Shame on HR, longer runs should have been on AC side of inverter. Props to you for wanting to manage you batteries. Send me a PM with an email address and I will send you a nifty amp hour spread sheet that I created.
You should get a 500 amp disconnect switch. Chris
My Rig
2001.5 2500 STD CAB AUTO SLT 4x4, CTD 4:10's, Bomb'd to Tow
2005 Cardinal 29WBLX.
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OnaQuest
Raleigh, NC
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Joined: 01/15/2006
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CA Traveler wrote:OnaQuest wrote:Not an answer to your specific question, but where does the cable on the negative battery terminal go? To the negative of another battery bank?
Why do you need a negative battery disconnect switch? The batteries are 4 6V batteries in a series/parallel connection. The smaller 2/O cable connected directly to the battery post (along with the copper bracket) goes to the negative of the second pair of 6V batteries. The larger 4/O cable on the left side of the shunt goes to frame ground and from that location there are several ground cables one of which goes to the charger/inverter ground.
A battery disconnect switch could be located on either the positive or negative cable.
Thanks Traveler, I assumed that must be the case. Nice looking setup. My setup is electrically the same, but maybe not as esthetically pleasing.
With the batteries and I/C so far apart, I think you were wise to cable between them rather than use the frame as the ground return.
Here is electrically how I wired mine. As you can see, I can use the battery bank selector switch as a disconnect on the positive feed to the inverter.
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