ArtieKendall
New Member
This is about as "Beginner's" as you can get, but I am totally confused.
In a four-year-old video, Will says that when you first connect the battery, there is always a spark, and he proves it by getting a pretty big spark when the touches the cable to the positive terminal.
at 7:02.
In a newer video, he says that if you get a spark when you connect the battery, you are doing something wrong.
at 6:37.
Is this because newer batteries have a BMS that has a built-in resistor or something?
I also notice that in the older video, Will has a fuse attached to the lug of the cable connected to the positive terminal, but not in the newer one. But I've also seen recent videos where there is a fuse on the cable.
And for a final bit of confusion, I've seen videos where people just hold a big resistor in their hand and put it between the cable and the positive terminal when first touching it, "to allow the capacitors to charge."
So can someone explain when you should expect a spark, when you should have an inline fuse, when you should use a resistor to pre-charge, etc.?
Thank you.
In a four-year-old video, Will says that when you first connect the battery, there is always a spark, and he proves it by getting a pretty big spark when the touches the cable to the positive terminal.
In a newer video, he says that if you get a spark when you connect the battery, you are doing something wrong.
Is this because newer batteries have a BMS that has a built-in resistor or something?
I also notice that in the older video, Will has a fuse attached to the lug of the cable connected to the positive terminal, but not in the newer one. But I've also seen recent videos where there is a fuse on the cable.
And for a final bit of confusion, I've seen videos where people just hold a big resistor in their hand and put it between the cable and the positive terminal when first touching it, "to allow the capacitors to charge."
So can someone explain when you should expect a spark, when you should have an inline fuse, when you should use a resistor to pre-charge, etc.?
Thank you.