Hi Guys
I just have a couple of questions before wiring up my 12S4P Battery to my BMS.
So this is the BMS I’m using from Batterysupports.com
So from the diagram.
I know I have to connect my Negative wire from the end of my pack to the B- on the BMS I have to connect the negative lead from the charge port to the P-.
So then I’m left with the positive wire, that goes to the anti spark.
My question is do I run a negative lead from P- to the antispark as well?
And N- remains unused?
cheers
N- remains unused. P- and battery plus both go to the charge port and to the antispark. Minimum 12guage for the power connection and maybe something a bit smaller for the charge port connections.
Cheers dude.
Your welcome. The only thing I would add is to check and double check the balance wire voltages to make sure they are in the right order. All the best 
Yep, will test. cheers
Ok so balance wire voltages spit on. Have wired the negative from the battery to the BMS B-. And wired the charge port negative to the P-, with a negative wire that will connect to the antispark. It’s ok to put the charge and he blows wires into the same bms P-?
*the charge and the load wires
It’s ok to have charge and load on the same P-. But only negative. Your photo shows a small black and red along with the large black load wire.
