Is this type of setup with the alt hot with the kill switch off legal for nhra drag racing. Higher quality switches will have a make before break connection.
Check out this mod on battery switches.
You can find out more Diagram below
Battery kill switch wiring diagram trailer. The vehicle should stop running. Battery disconnects go on the positive side as close to the battery as possible. How to install a master disconnect relocation battery switch on your mustang.
How to install a master disconnect relocation battery switch on your mustang. Turn switch on start the vehicle and turn switch off. Once you have the batteries wired properly in parallel you will need to connect the 12 volt power wire from the trailer 7 way connector to the positive wire on the first battery.
Best sellers 100 nitto. Never connect your automotive battery disconnect switch to the positive terminal of your battery. With some switches you find may have a field disconnect that is for use in a automotive style charging system.
If not re check your wiring to the diagram below. We have a photo see photo at right that shows how to wire the batteries in parallel. I connected the negative wire from the trailer to the disconnect switch.
By the looks of the picture i assume that is what you did. This is true for all top post and side post batteries. The battery also need to be secured by 2 38 minimum boltsor allthread through the framerail.
This project is very simple all you do is take wire from battery connect it to the post on the switch that its suppose to go to and hook up everything. I found a wiring diagram which indicates that this is a normal setup. From the switch to the negative terminal on the battery i used a 12 inch 6 awg wire i had in my parts bin from when i had.
The manufacturers must know something to recommend and publish these diagrams. So thats why i installed mine that way. The basic switch is the same and can be used.
Diy how to install a battery kill switch. I got a suprise changing my alternator the other day finding out that the wire from the battery to the alternator was still hot even with the kill switch in the off position. How to hook up a battery switch for pv power or a wind poad so u can send the power were u need it or use as a test switch as i will be doing with this one its easy.
Battery cutoff switch there is a wiring diagram picture from xantrex in that article which provides a good example. And one more thing i actually ran a new 8 gauge wire directly from the charge terminal of the alternator through an 80 amp fuse and then to the battery side of the shutoff switch. 1 they usually won.
Its for the inverter model i installed and the wiring i followed.
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