2003 Super Air Dual Batteries

[ck1105]

I have a 2003 210TE, last year I added a blue sea voltage regulator switch to manage power for my second battery, which is my house battery. So I have a strange issue, when the batteries are combined, either manually or because the 2nd battery is charging, the fuel light starts flashing on my tach guage, when they are not combined it stops, also I get a ton of noise in my stereo when they are combined that is not there when they are not, any ideas?

[DW SD]

Definitely odd.

How is the second battery grounded? I might look for a grounding issue. I'm guessing voltage might be backfed across other circuits like the fuel sender.

Is the Blue Sea Sys wired properly?

Do you have photos of the wired items as installed?


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[NautiqueJeff]

Grounding was the first thing I thought of too. I'd check that first.

[ck1105]

Both batteries are grounded to stock locations on the motor and mounts, also doubled back and grounded through a ground bar. The blue sea is grounded to same bar.

[ck1105]

So the ground wire connects each battery to the ground bar, then I ran 2 additional wires from ground bar and connected to original location of battery wires. As far as i can tell the battery switch is wired correctly. Boat operates fine it just gives the listed above symptoms.

it won't let me upload pictures, I'm on phone, no Internet or computer at Lake house.

[DW SD]

I wonder if an issue with blue seas device? They are normally very robust. What gauge wiring did you use?

[ck1105]

2 guage for battery and 8 for the inverter

[MLA]

can you link to the blue sea device you installed?

Can you create and post a diagram of how the device, batteries and original boat cables are connected?

as to the light, you need to first know which side of the bulb is supposed to have ground and which side positive under normal working conditions. Then when its on at the wrong time, see which side of the bulb has voltage or ground thats not supposed to be there.

[vanhanbr]

I can't speak for the light, but I installed the same battery combiner and am getting a lot of noise in my stereo system too. I haven't ironed out the problem yet, but I think it is a poor factory ground at the engine.

[ck1105]

So I charged my house battery overnight, and now the low fuel light flashes regardless of the batteries being combined or not, the gauge reads that there is half a tank but never changes, whether the boat is on or off. The light that is flashing is in the LCD readout of the tach on the faria guages. I don't know how to test that. The boat has the original Faria guages that go through the gateway. Not sure if that is helpful. Also the belly tank drain pump kept blowing fuse while enging was running, once engine is turned off it does not blow fuse, but causes very loud noise to come from the speakers.

I have the wired the like this:

http://ezacdc.com/ProdImages/vsr_wiring.jpg

This is the VSRrelay used:

http://www.bepmarine.com/en/710-140a

[ck1105]

I think I am going to remove the VSR, to see if symptoms remain.

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[ck1105]

I've been looking at more diagrams online, and it looks like the one I used (pictured above) is wrong. The VSR should be connected to the live posts and not the load. Could this be my problem. I can't try it today, but my brain hurts from thinking about this.

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[MLA]

I see no issue with the VSR on the boat side of the switch. its actually the ideal method when a charger is part of the scheme. A volt meter on the VSR would tell you a lot, without removing it. Also, remove the control ground and see if the mystery light goes out. In addition to whats already posted here, Id look for a voltage drop on those ground cables.

[ck1105]

How do I check the voltage drop on ground cables?

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[wakejunky]

I have a much simpler installation, I left my existing two turn switches that the factory installed and turned off the 2nd battery. I then installed a battery relay between the main battery and the 2nd battery and wired it to an ignition on wire to switch the relay on. This is much like how RV's are wired. Then when I'm driving, I'm charging both batteries and then went I'm sitting, my stereo is only running off the 2nd battery, isolated from the main battery.