Battery Disconnect

[Cycledude]

Putting on the hot side should kill all the power. I would use a maintainer as well.

Hot side ? I haven’t read any instructions for installing a battery disconnect but I believe it’s supposed to be installed on the negative side.
Edit
I just read some instructions for installing battery disconnects and yes they are supposed to be installed on the negative side.

 

[boatmoter]

I have a battery disconnect on my Kubota X900 RTV that I park in my basement for safety reasons. My question is can I put one on a Mahindra 4540 tractor that I recently purchased? It has a ECU that mainly controls the injection system I believe. Will disconnecting the battery on a regular basis cause a problem in any way? I'm parking the Mahindra in my shop and thought it would be a good thing to do with it also.

anything like a car or truck with a ECM or PCM computer then everytime you disconnect the battery the computer has to go through a relearn process . on cars and trucks it takes 5 miles of normal driving of stop and go and a long run for it to relearn. I can imagine it's the same with the tractor. the computer will have to go through a relearn process. I would not recommend a disconnect on it.

 

[Todd727]

I have always installed on the negative side. Maybe I'm wrong.

Hot side ? I haven’t read any instructions for installing a battery disconnect but I believe it’s supposed to be installed on the negative side.
Edit
I just read some instructions for installing battery disconnects and yes they are supposed to be installed on the negative side.

It is supposed to be on the negative side.

 

[scootr]

Hot side ? I haven’t read any instructions for installing a battery disconnect but I believe it’s supposed to be installed on the negative side.
Edit
I just read some instructions for installing battery disconnects and yes they are supposed to be installed on the negative side.

You should install a battery disconnect switch on the negative (ground) side, as this provides maximum safety by interrupting the path to the vehicle's chassis, preventing sparks and shorts if the positive (hot) side accidentally touches metal, and it's the standard practice for most vehicles, preventing issues like alternator power sustaining the circuit even if the positive is cut.

 

[AnotherBueller]

Hot side ? I haven’t read any instructions for installing a battery disconnect but I believe it’s supposed to be installed on the negative side.
Edit
I just read some instructions for installing battery disconnects and yes they are supposed to be installed on the negative side.

Current flows from the negative terminal (-) to the positive terminal (+).

 

[WranglerX]

Does not matter.... It breaks the "current loop" no matter what side its on....

 

[JRH02]

Arguing over a disconnect on the + or the - is probably a non issue if the disconnect is sized for the battery post. Which from memory is always the negative.

 

[Cycledude]

However Some older tractors do use positive ground systems.

 

[John Joseph McVeigh]

Current flows from the negative terminal (-) to the positive terminal (+).

Electrons flow from the negative terminal of a battery (or other form of power supply) to the positive terminal. Electrical Engineers observe a “current convention” in which the flow of current is from positive to negative… opposite to the flow of electrons.

The isolation switch on my Ventrac 4500Y is on the positive leg of the electrical system circuit.

I really don’t see a disadvantage if an isolation switch interrupts the circuit from the positive side of things. I also do not see an advantage if an isolation switch breaks the circuit on the negative side of the supply.

 

[WranglerX]

According to OHMS law it takes one volt to push one amp through one ohm of resistance.... Providing there is a loop circuit from one battery pole to the other battery pole.... Open the loop any place and you have no current flow (path)......There for you are "disconnected"....