Series connection questions

I am considering how I will make my series connections between packs. I like Average Joe's idea of using pluggable connections.

Ive got some XT 90 connectors that should be sufficient for this purpose. My question, is there any reason I should not make my connections like this?




I plan to shorten the bus bar end and solder each side to the 10g wire. I will have all positive sides using the same side of the XT 90 and all negative the opposite so obviously they connect in series. I think I should shorten the wire a bit as well now that I look at it. But otherwise is there a reason I'm not thinking of to do this differently? I am not an expert for sure so I'm looking to you guys who are for input.





Thanks,
Alec

I thought about using those kinds of connectors but decided against it in the end. I wanted as little resistance as possible (as close to 0 as I can get) throughout the bus bars and pack connections. Since I'm using 6awg wire for bus bars, the connectors would be the point of highest resistance when under heavy load.

Your packs are smaller than mine (120p) so I don't see any reason they wouldn't work. Just keep in mind that even though an XT90 is rated for 90A, there's no way you can pull 90A through those and not have them get warm/hot. Voltage loss will increase.

But if you use both connections on the XT90 you could potentially do 180A Since you use both connections on the contact.

With that said i would not go 90A per such connector anyways but more 50A continous is better rating. (100A total)

Thanks guys! I appreciate your advice! I think I will go with the XT90's since I have them.

My next question is how to parallel more packs? I am still working on my first string of 7 but I will need to be thinking of how to add a second string. Again, any and all advice is welcome.

Either you paralell every pack or you just add next string up. Need to have some kind of split on the end to hook all up.


This is how my larger system is hooked up: