I added a Blue Sea Add-A-Battery to my boat.

You know the drill..

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Rascal
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Re: I added a Blue Sea Add-A-Battery to my boat.

#16 Post by Rascal » Thu Mar 06, 2014 8:39 pm

"Bob" is that the guy in Bonita (SW Florida) that has the "Sandford & Sons" junk yard pontoon?

Rascal
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Woody
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Re: I added a Blue Sea Add-A-Battery to my boat.

#17 Post by Woody » Thu Mar 06, 2014 9:30 pm

Rascal wrote:"Bob" is that the guy in Bonita (SW Florida) that has the "Sandford & Sons" junk yard pontoon?

Rascal

No. I believe you are thinking of Greg F, (or something like that)
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BobG
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Re: I added a Blue Sea Add-A-Battery to my boat.

#18 Post by BobG » Wed Dec 16, 2015 8:03 am

Rascal wrote:"Bob" is that the guy in Bonita (SW Florida) that has the "Sandford & Sons" junk yard pontoon?
Rascal
No, it's 10 degrees outside, and my boat is covered in snow at an elevation of 9,000 above sea level, in the mountains of Colorado.

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Joseph Elliott
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Re: I added a Blue Sea Add-A-Battery to my boat.

#19 Post by Joseph Elliott » Thu Jan 28, 2016 2:12 pm

Can this system be used with 2 batteries of extremely different sizes as long as they are both 12V?
Alberta, Canada
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Reiner
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Re: I added a Blue Sea Add-A-Battery to my boat.

#20 Post by Reiner » Fri Jan 29, 2016 1:38 pm

BobG wrote:This is how I did it.

The box is a Carlon (Model E989NL) 8” X 8” X 4” Junction Box, from Lowes

The strain relief's are Halex ½” (Model 27693) and ¾” (Model 27697) ACC Non-Metallic Strain Relief Cord Connectors from Home Depot

Throw in two Blue Sea ANL fuse holders with 100 Amp ANL fuses, and a 4-position terminal block with cover for all the ground wires.

If I were going to do it again, I would probably use the Carlon 12" X 12" X 6" box.

I have a question in regards to where to connect a battery charger with this set-up? Go direct to the starting battery?

Thank you,
Reiner
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crookedlaker
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Re: I added a Blue Sea Add-A-Battery to my boat.

#21 Post by crookedlaker » Mon Feb 01, 2016 7:02 pm

looks great
another spring project
what is the purpose of the start isolation circuit, I see that bob did not do it, is it an optional step like the led indicator.
Also would it be correct to just jumper the (-) on the batteries together and run the house and motor battery (-) off one battery as long as they are bonded just to simplify the wiring with less connections. I noticed the drawing from blue sea does not even show (-) for the house circuit.


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Reiner
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Re: I added a Blue Sea Add-A-Battery to my boat.

#22 Post by Reiner » Tue Feb 02, 2016 9:42 am

crookedlaker wrote:looks great
another spring project
what is the purpose of the start isolation circuit, I see that bob did not do it, is it an optional step like the led indicator.
Also would it be correct to just jumper the (-) on the batteries together and run the house and motor battery (-) off one battery as long as they are bonded just to simplify the wiring with less connections. I noticed the drawing from blue sea does not even show (-) for the house circuit.


Mike
This may be a better drawing showing the (-) for the house circuit.

http://assets.bluesea.com/files/resourc ... 310020.pdf
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walter
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Re: I added a Blue Sea Add-A-Battery to my boat.

#23 Post by walter » Tue Jun 16, 2020 7:47 pm

I'm going to resurrect this post from the dead instead of starting a new one.
I'm thinking about adding another battery and adding the Blue Sea M-ACR, my question is do I have to or has anyone NOT installed the Battery switch along with the M-ACR. Is the switch just for a backup if you would need to combine both batteries? I'd like to just keep it a little simpler and not use the battery switch.
Looking at 1 of the diagrams Blue Sea shows on the instruction (below) it looks like it should be fine, just would like to be sure.
Thanks guys.
m-acr.JPG
m-acr.JPG (52.32 KiB) Viewed 2550 times
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onlybillhere
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Re: I added a Blue Sea Add-A-Battery to my boat.

#24 Post by onlybillhere » Thu Jun 18, 2020 9:56 am

I installed a VSR (voltage sensing relay) just like the one from Blue Seas without a switch. I also wired it where it only activates when it senses the voltage over 13 volts ( when charging by the motor) and not used the ignition. It has been this way for about a year now and no issues.
My batteries are rarely ever ran down so I don't worry about my motor having enough current to charge them both.
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