honda talon busbar with second battery install question.

[johnnunez29]

I have lots of questions about your wiring. Hard to figure it out. and missing items (wires)
Need to discuss one item at a time to best NOT confuse things.

Let's break it down item by item.

40A bus bar kit.
Using your image. Post are in this order. 1 (top), 2, 3, 4 (bottom), Post are NOT connected to each other so each must be FED.
- Plug the 2 pin connector into the blue connector.
- Post 1 - MAIN POWER from the large OEM supplied red wire, ensure this is connected inside the battery box. Hook red wire from the 40a relay here also.
- POST 2 - Orange wire goes to post #3, can also jump to post #2 using a jumper. Now both post 2 and 3 are new 40a key-on power post.
- Post 4 will be a ground post. Connect the OEM supplied large guage black wire to this post.


ISOLATOR kit.. (not discussing voltmeter)
- Isolator MAIN post: needs main battery power so connect it to post 1 of the bus bar.
- Isolator AUX post: needs to go to the second battery positive.
- Isolator little black wire: needs a true ground. Use post 4 if you like or a screw on your fuse box negative side.
- ALSO... to complete this circuit, the second battery needs to be GROUNDED. You will run a wire from the second battery ground to post #4.

FUSE Box. (40 amp limit).
- Positive goes to post 3
- Ground goes to the second battery or post #4 will work also.

That should have you set.

You are the man! Than you sir. This is what you said drawn out. When I get back in I will confirm

 

[Admin]

 

[johnnunez29]

👌🏻 so long as I’m not sitting idly by letting the poor fella wire up a fire 🤣

I’ll let the adults help him now. 👍🏻

🤣🤣🤣 nah I’m not THAT bad. Hell this thing had battery positive connected to the ground on busbar. 😳

 

[Hondasxs]

You are the man! Than you sir. This is what you said drawn out. When I get back in I will confirm



View attachment 459865

Looks right.

 

[johnnunez29]

Looks right.

Is the way this is wired only getting power for accessories from the 2nd battery?

 

[Hondasxs]

Is the way this is wired only getting power for accessories from the 2nd battery?

IDK...
But I know that black wire on the bus bar is usless. Not sure what it is.
I have found a lot of people do not ground the second battery correctly.
This causes many problems down the road. Works today.. and maybe tomorrow.. but not next month.

 

[johnnunez29]

IDK...
But I know that black wire on the bus bar is usless. Not sure what it is.
I have found a lot of people do not ground the second battery correctly.
This causes many problems down the road. Works today.. and maybe tomorrow.. but not next month.

Oh damn. I was trying to get power to the fuse box solely from the 2nd battery. Like to not draw from main battery

 

[johnnunez29]

So is the isolator supposed to light up or something? Cuz I’m not getting any charge on 2nd battery at idle. Even if I connect trickle charger. Only bus bar gets charge

 

[DRZRon1]

So is the isolator supposed to light up or something? Cuz I’m not getting any charge on 2nd battery at idle. Even if I connect trickle charger. Only bus bar gets charge

Depends -

Your main battery needs to be charged first before the isolator will sense and then connect the second battery and blue lite will come on

 

[johnnunez29]

Depends -

Your main battery needs to be charged first before the isolator will sense and then connect the second battery and blue lite will come on View attachment 459877

Either my relay is shot or my isolator is trash. For whatever reason I think it’s the isolator. I just don’t know where to find locally. And I think the way I now wired it works but the fuse panel should be getting power from both batteries. I want it wired seperate. I think if I put positive from fuse box to battery it’ll solve my issue

 

[johnnunez29]

spoke to the manufacturer and he told me i need to install the trickle charger at the 2nd battery, not the main. says the charge will travle bacl but not forward which doesnt make much sense, i will call him to get a better explanation tomorrow.

 

[Hondasxs]

spoke to the manufacturer and he told me i need to install the trickle charger at the 2nd battery, not the main. says the charge will travle bacl but not forward which doesnt make much sense, i will call him to get a better explanation tomorrow.

Trueam isolator is ambidextrous.
To test it. Disconnect one post and charge it.
Ex. Disconnect AUX post and crank machine.
Wait till the connected post reaches close to 14 volts.
Did blue light come on?

Sent from my SM-G996U using Tapatalk

 

[johnnunez29]

So I am trying to get batteries separated. The way I wired it I’m pretty sure this is running power from both batteries. So far this is what I have for a schematic. How does it look?

 

[johnnunez29]

I put oem as a battery just to simplify things. Avoid any confusion.

 

[johnnunez29]

Excuse me. This makes more sense

 

[johnnunez29]

Ok ok.. my 50th and final drawing ( I hope ) 🤣🤣

 

[Hondasxs]

Are you sure the purple is connected in this manner? This is what a bunch of people forget to do. (ground the second battery correctly)
The yellow is pointless; it's not doing anything.... at the moment... but it could be used as a ground point in the future.
Relocate the winch to a second battery.

 

[johnnunez29]

Are you sure the purple is connected in this manner? This is what a bunch of people forget to do. (ground the second battery correctly)
The yellow is pointless; it's not doing anything.... at the moment... but it could be used as a ground point in the future.
Relocate the winch to a second battery.

I believe that is what the isolator calls for. I was considering running the winch off battery 1. Still think that’s not a terrible idea. The ground on busbar asks for it in their instructions

 

[Hondasxs]

I believe that is what the isolator calls for. I was considering running the winch off battery 1. Still think that’s not a terrible idea. The ground on busbar asks for it in their instructions

It's missing the adjoining wire.
So at this moment, it does nothing.
Leave it.. or remove it. doesnt matter.
As long as it is wired as the image, consider it a future ground lug.

 

[JNo323]

Like @Hondasxs said, relocate the winch wire directly to the battery and not the isolator. This ensures it draws from the battery you want it to.