Battery switch and DVSR

[1BadTundra]

Ok, I have a 2016 212x. It has one battery switch, and a DVSR. The battery switch has a 1, 2, and a 1&2. I understand what the concept here is, but where should I run this switch? If I set it to 1, will that be my starting battery? What if I set it to 2, or set it to 1&2? I put my voltmeter across the gauge power and worked the switch. The voltage didn't change. If it did, it was by a 1/10th of a volt, which a DMM fluctuates that much anyway. When I turn the switch to the off position, it does kill the power.. So what gives? What should it be? Where should I run it? I have an amp, and accessories set to one battery, but now I'm worried I wired all that to the starting battery.

 

[212s]

Ok, I have a 2016 212x. It has one battery switch, and a DVSR. The battery switch has a 1, 2, and a 1&2.

If everything is wired correctly, I believe you would set it to 1 for regular engine operation and the DVSR will kick in to charge the second battery. You flick it to 2 when floating so 1 is not used. 1+2 is if you need extra power to start the engines.

Newer models have gone to a 3 switch and DVSR so you don't have to do anything except turn on the 1 and 2 batteries when you launch the boat. The start and house stay seperate except when the engines are running and the DVSR kicks in to charge both - no need to flick switches when floating.

 

[1BadTundra]

If everything is wired correctly, I believe you would set it to 1 for regular engine operation and the DVSR will kick in to charge the second battery. You flick it to 2 when floating so 1 is not used. 1+2 is if you need extra power to start the engines.

Newer models have gone to a 3 switch and DVSR so you don't have to do anything except turn on the 1 and 2 batteries when you launch the boat. The start and house stay seperate except when the engines are running and the DVSR kicks in to charge both - no need to flick switches when floating.

I want to verify everything is wired right... Anyone know where to find the correct wiring diagram for this one?

 

[212s]

I want to verify everything is wired right... Anyone know where to find the correct wiring diagram for this one?

I don't know if the service manuals have battery wiring indicated or not. but if your cables have any labels on them you should be able to figure out what goes where. If not, you can trace the starter motor wire back to which switch and battery to figure out which is the start battery. I looked up the owners manual and it just says to turn the switch on and off, nothing about 1 or 2 positions. So I think your setup would have all boat functions connected to the 1 position, and 2 position is only for the stereo and amp? That way all of the boat functions work in the 1 position, and the stereo would work off 2 and get charged while the engines are running. In the 2 position only the stereo would work while floating?

 

[marcham]

Not sure where to find the diagrams, but if you can trace the wires and post a picture, we'll ne able to confirm how it should be operated. Most likely 1 or 2 doesn't matter, in both cases the other battery should be combined when the voltage comes up above 13.2v

 

[1BadTundra]

Not sure where to find the diagrams, but if you can trace the wires and post a picture, we'll ne able to confirm how it should be operated. Most likely 1 or 2 doesn't matter, in both cases the other battery should be combined when the voltage comes up above 13.2v

Thats what I'm seeing. The voltage was 13.1, so the relay was closed... Giving me ability to start from either position when battery 2 was disconnected. Meaning, I had battery 2 unhooked, when I tried to start the boat, it would stat on 1, 2, and 1&2. But the relay was closed, bridging the power. When I disconnected battery 1 and tried to start it, it would only start on battery 1 and 1&2, when I switched to battery 2, there was nothing. make sense?

 

[TimW451]

I don’t think that is right. When position 1 or 2 is selected, only that battery should be connected. So you shouldn’t have been able to start the boat in position 2 when battery 2 is unhooked. The second scenario with battery 1 disconnected is like the opposite of how it should be.

I have no good explanation as to why one would want it to work like it does right now.

Thats what I'm seeing. The voltage was 13.1, so the relay was closed... Giving me ability to start from either position when battery 2 was disconnected. Meaning, I had battery 2 unhooked, when I tried to start the boat, it would stat on 1, 2, and 1&2. But the relay was closed, bridging the power. When I disconnected battery 1 and tried to start it, it would only start on battery 1 and 1&2, when I switched to battery 2, there was nothing. make sense?

 

[marcham]

The relay should be open during start, as the voltage would below 12.8V for 20 seconds. If you quickly turn off the engine, switch the batteries and restart then it's possible it stays closed, but it's not designed for combining batteries fir start, that's what the switch is for.

Are both batteries hybrid or is one a deep cycle?

Is there an AC charger also connected to the batteries?

 

[Beachbummer]

Once you wire it correcty...

If everything is wired correctly, I believe you would set it to 1 for regular engine operation and the DVSR will kick in to charge the second battery. You flick it to 2 when floating so 1 is not used. 1+2 is if you need extra power to start the engines.

this is one way, but you could also leave it on the same number, and if you draw it down by mistake, you can then use the switch and start from the other battery and make it home.
I have this set up and switch from 1 to 2 every month or two, to ensure the other battery is still good and charged as it's supposed to, but also this way you don't have to mess with the switch on every outing.

 

[1BadTundra]

The relay should be open during start, as the voltage would below 12.8V for 20 seconds. If you quickly turn off the engine, switch the batteries and restart then it's possible it stays closed, but it's not designed for combining batteries fir start, that's what the switch is for.

Are both batteries hybrid or is one a deep cycle?

Is there an AC charger also connected to the batteries?

This is the only thing I can think of. I just bumped the starter, I didnt do a full crank to start the engines. The relay was lit (closed) thats the only way I can see battery 2 starting the boat while battery 2 was disconnected.

 

[1BadTundra]

I used my NOCO Gen5X2 to verify my suspicions. When the red light is lit on the relay, battery 1 charger moves to battery 2. Any time that relay is on, battery 2 is bridged, no matter what position the switch is in.

 

[AZMark]

I used my NOCO Gen5X2 to verify my suspicions. When the red light is lit on the relay, battery 1 charger moves to battery 2. Any time that relay is on, battery 2 is bridged, no matter what position the switch is in.

That’s correct, that’s all the DVSR does. Any time there is charging power coming in and voltage goes above a certain threshold (13v or whatever) then it links the batteries so that both will charge when there is extra power coming in. It serves no other purpose.

If you open the DVSR up there is a little red wire that you cut and wire to a switched power source and it will override the DVSR for charging with a dual bank battery charger when you’re at home without the engine running.

 

[Farny]

That’s correct, that’s all the DVSR does. Any time there is charging power coming in and voltage goes above a certain threshold (13v or whatever) then it links the batteries so that both will charge when there is extra power coming in. It serves no other purpose.

If you open the DVSR up there is a little red wire that you cut and wire to a switched power source and it will override the DVSR for charging with a dual bank battery charger when you’re at home without the engine running.

Not sure this is the right approach. Same NOCO Gen5x2, But I have breakers between the 2 batteries and the acr / DVSR. When I plug in the charger I open both the breakers to avoid combining the batteries. When done and I unplug- I reset the two breakers.

Not sure I need to. Maybe a marine electrician can chime in on this one with a better idea

 

[1BadTundra]

Not sure this is the right approach. Same NOCO Gen5x2, But I have breakers between the 2 batteries and the acr / DVSR. When I plug in the charger I open both the breakers to avoid combining the batteries. When done and I unplug- I reset the two breakers.

Not sure I need to. Maybe a marine electrician can chime in on this one with a better idea

I wish I'd known this was the case, I could've saved $80 and bought the 5x, hooked it to battery 1 and it would've charged both. I do need to find a way to segregate these two so I can charge both when she's just sitting in my shop

 

[Beachbummer]

The DVSR uses a ground wire to energize the internal voltage detection circuit and the relay that it energizes when charging voltage is detected.

Interrupt that ground and the dvsr is disabled. Put a switch on that little cable to disable it manually when you want to charge the batteries without the dvsr "helping"

 

[212s]

I wish I'd known this was the case, I could've saved $80 and bought the 5x, hooked it to battery 1 and it would've charged both.

That's the way I opted to charge mine - the charger on just the start, and the DVSR connects them to charge the house, all automatically and I don't have to do anything.

I do need to find a way to segregate these two so I can charge both when she's just sitting in my shop

Your x2 charger will work perfectly to charge them separately if you do as beachbummer said and put a simple on/off switch inline with the skinny black ground wire. Switch off when charging and switch on when you're using the boat. Remember though, if you forget to flip the switch when boating, your house won't get charged.

 

[1BadTundra]

That's the way I opted to charge mine - the charger on just the start, and the DVSR connects them to charge the house, all automatically and I don't have to do anything.

Your x2 charger will work perfectly to charge them separately if you do as beachbummer said and put a simple on/off switch inline with the skinny black ground wire. Switch off when charging and switch on when you're using the boat. Remember though, if you forget to flip the switch when boating, your house won't get charged.

I think I can manage this... Thanks for the tips

 

[1BadTundra]

Yep, dropped that ground wire, the relay turned off and now have independent control. I found this little switch that I can literally stick on the side of the ACR and flip when I turn on the charger, or move the battery switch to any position. Even with the wire off, I can still use the "Battery 1&2" part of the switch to charge both while under way, correct?

 

[1BadTundra]

maybe I'm confused by the redundancy here... Am I over thinking it?

 

[Beachbummer]

You are correct. Dvsr engaged=manually selecting 1&2