Wiring and Battery Addition

[Tex72]

I also initially installed the single circuit 1/2/both/off battery switch but recently switched to the dual circuit on/off. Just be very careful not to switch thru the off position, especially if the motors are on, but even with it off to be safe. Switch thru the both position instead to avoid voltage spikes. I fried two connext screens on my boat with the single circuit switch. One time was switching from 1 to 2 thru off while it was charging with boat off and that was enough to fried the screen.

Thanks for the heads up.
I plan on installing the Perko switch. It forces you to go through the “both” switch, when moving between battery 1 & 2.

 

[Tex72]

I was initially going to install the ACR & dual circuit switch. After reading this thread, I decided against it. There’s too much work involved…dealing with space, relays, fuses/panels, & my Nocco charger etc., it just looks too complicated/time consuming.

 

[jcb1977]

I was initially going to install the ACR & dual circuit switch. After reading this thread, I decided against it. There’s too much work involved…dealing with space, relays, fuses/panels, & my Nocco charger etc., it just looks too complicated/time consuming.

it's really quite simple, I have a dual bank charger also, just install the ACR on the load side and you'll be able to charge each battery individually when off, and have both batteries charged by the stators when on the water. It's also a convenient time to get rid of the inline fuses.

 

[HangOutdoors]

I was initially going to install the ACR & dual circuit switch. After reading this thread, I decided against it. There’s too much work involved…dealing with space, relays, fuses/panels, & my Nocco charger etc., it just looks too complicated/time consuming.

I would suggest you put in an ACR so both batteries get charged on the water while running. You can make the setup as simple or elaborate as you wish to.

 

[Tex72]

I would suggest you put in an ACR so both batteries get charged on the water while running. You can make the setup as simple or elaborate as you wish to.

I’ll give this some more thought. I have a little time, before I decide to move forward with the battery addition.
I’ve been waiting for things to cool off, before I take on the project.

Thanks y’all.

 

[Clacava]

My parts list if anyone is interested.

Amazon.com: Blue Sea Systems 7650 Add-A-Battery Kit, Beige (7650-BSS): Sports & Outdoors

Amazon.com: Blue Sea Systems 6 Circuit Blade Fuse Block With Negative Bus 100 Amp Max Per Block 30 Per Circuit: Automotive

Amazon.com: Blue Sea Systems 150 Amp Common BusBar with 4 studs and a cover, 2307: Sports & Outdoors

Amazon.com: YMHTD 100A Reset Fuse 20-150AMP Inline Circuit Breaker Reset Fuse Holder for Car Audio Marine Boat Inverter Replace Fuses 12V-24V DC Breaker Switch Overload Protection Fuse: Automotive

Amazon.com: YMHTD 60A Reset Fuse 20-150AMP Inline Circuit Breaker Reset Fuse Holder for Car Audio Marine Boat Inverter Replace Fuses 12V-24V DC Breaker Switch Overload Protection Fuse: Automotive

BLUE SEA SYSTEMS Cover for MaxiBus 2105/2126 (For Models 335904 and 13176383) | West Marine

ANCOR Battery Cable by the Foot | West Marine

ANCOR Flat Duplex Wire by the Foot | West Marine

what gauge wire did you use for both

 

[HangOutdoors]

what gauge wire did you use for both

Look up higher in the thread. I am traveling and can check if not there when I get home

 

[ahenderson432]

@AZMark Yes the two fuses are between each battery and switch. I have another 60 amp fuse that is between Positive buss and the the run to the helm. In practice wiring everything up in the boat it got a bit more cluttered. I am not totally pleased with the final result but it will do for now. It is ready for install of the two batteries. Had to stop because it was dark out. Want to check all my work in the daylight before adding power.

I made all the batteries wires here at the house. Since the lengths were different I figured it would be best. First time doing it, wasn't too bad. Hard to bend the guage wire short distances.

View attachment 148067View attachment 148068

That’s a beaut Clark.

 

[HangOutdoors]

what gauge wire did you use for both

4ga Wire, see posts on Page 2 of this thread.

 

[Clacava]

I wanted to post what I ended up doing using your install as a guide but did a few things differently.....before this I had installed a second battery with a single circuit layout (1/2/off/combine switch). I fried two connext displays for some reason, still not exactly sure why, but before I get the third screen installed I figured I should try changing something to try and avoid it. Figured I would try a dual circuit with on/off switch this time. I mounted the negative busbar on a piece of wood blocking using the bolts for the table holder (I do have a cover for the ground busbar but didn't have it on when I took the picture).

View attachment 186037View attachment 186038View attachment 186039View attachment 186041

This worked without killing your connect screen?

 

[jcb1977]

This worked without killing your connect screen?

after I changed from a single circuit 1/2/off/combine to the dual circuit House/Start arrangement, I did not have any issues with frying the connext screen. I only had it that way for one season as I've since upgraded the boat though.

I suspect the 1/2/off/combine switch was causing voltage spikes when switching through the off position but don't have it any real evidence that was indeed the cause.

 

[Clacava]

after I changed from a single circuit 1/2/off/combine to the dual circuit House/Start arrangement, I did not have any issues with frying the connext screen. I only had it that way for one season as I've since upgraded the boat though.

I suspect the 1/2/off/combine switch was causing voltage spikes when switching through the off position but don't have it any real evidence that was indeed the cause.

so the pics is the correct way, with the acr?

 

[HangOutdoors]

My picture is correct and work perfectly. Has been done by many people. I can't speak to how anyone else may have miswired their system. If Connext screens were frying something was VERY VERY wrong and miswired.

 

[jcb1977]

My picture is correct and work perfectly. Has been done by many people. I can't speak to how anyone else may have miswired their system. If Connext screens were frying something was VERY VERY wrong and miswired.

Thats not accurate.....you can have a correctly wired system and still have a voltage spike. the connext screens are or were extremely sentivie to voltage spikes.

 

[jcb1977]

so the pics is the correct way, with the acr?

You want the ACR wired on the load side if you want to independently charge each battery with a smart charger. some of the pictures early in this thread were wired with the ACR on the batt side which I would not do unless you are limited to only one source for charging.

 

[jcb1977]

My picture is correct and work perfectly. Has been done by many people. I can't speak to how anyone else may have miswired their system. If Connext screens were frying something was VERY VERY wrong and miswired.

Not sure which picture your talking about....but the pic in Post #8 looks incorrect to me. Seems to have the ACR on the Battery Posts.

 

[HangOutdoors]

Thats not accurate.....you can have a correctly wired system and still have a voltage spike. the connext screens are or were extremely sentivie to voltage spikes.

Perhaps but I have wired over 20 Yamaha boats as of now including my own with out issue. The most likely answer is it was wired wrong.

 

[HangOutdoors]

Not sure which picture your talking about....but the pic in Post #8 looks incorrect to me. Seems to have the ACR on the Battery Posts.

When my switch is off it takes the ACR out of the picture. That may have been an early picture. I have 4 bank charger so one on each battery so they charge independently.

 

[jcb1977]

Perhaps but I have wired over 20 Yamaha boats as of now including my own with out issue. The most likely answer is it was wired wrong.

OK.....you go with that.

 

[HangOutdoors]

OK.....you go with that.

Dude what is your deal, do you have an issue?