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If I m no wrong it's the opposite, the blue wires to the battery negative terminal while the black wires go to the MPPT module. And yes I did google 8 AWG so I knew it was a kind of cable, but had no clue if mine was 8 or 10. Thanks for your help

Hi again, sorry for bothering you... An other issue I have here is due to the very thin BMS cables: these are 24 AWG. So i'm still considering if I should weld them to the battery units, nor if I should keep trying to find some pods that are small enough to meet them on one side, but large...

So guys this is basicaly what I have in mind with the infos you gave me. Would it do the job you think?? Thanks in advance for your answers @John Frum @littleharbor2

Also still wondering: why are these 2 things looking so different for doing (as far as i understood) the same thing, which is connecting cables?

Yes, I did that just "to see" but that is def not the way I want to do it. That's my question tho, how to do it clean :D @Supervstech gave an answer I can understand and even feel easy to do. And if I understand yours, welding is the worse option to consideer. I understand the idea of making...

So both with fusable units as the Victron one I posted would do the job right?

This is what I bought

Fuse is 175A. Calculated this way: My inverter is victron Phoenix 2000VA, 4000w crest. So 4kw. So 4/24 = 0,166 About the cables: on one side are the 2 C- cables. They both are 10 AWG. Other side is a 4 AWG cable reaching the Minus electrode of the MPPT

I see! But (I might be wrong: remember the topic, I'm a total noob) if I m no wrong, it works with you because your units are paired in parallel, so one busbar is pairing both + of units. While for me it's all in series so I have no full positive busbars. So I guess if I make a hole in the...

I only followed the datas I received straight from Amy, right here:

Ok so u just make a hole in the middle of a busbar connecting the - and + of units? I'm impressed! Again I know nothing, but it sounds so special as they insist to plug these cables to positives

Is it fine u think? Thanks in advance

Hi there! This thread is the next step of this one, just so you know: https://diyjust-a-total-noob-willing-to-built-a-8s-from-amy-wan I started with 8S for a 24V 280AH battery. This is paired with a 2000VA inverter and plugged through a MPPT 150/60. About the BMS, Amy offered JBD BMS 8S...

Hi All! And before I start, thanks a lot for the whole informations available here. Would probably never have even thought about what's below without this forum. So... I'm building a van. Not really a van tho, being a 11meters long truck. Reaching the battery discussion, it seemed quiet clear...

But then... What's the difference with just using the "bolt" that is already on the battery unit? Beside that you can choose a tinyer one? And how did you manage to crimp the ring terminals on such small cables? As mentionned yesterday, by stripping and folding them?

Thanks for your explanations guys! I actually have the solar panels already, went on 1600W. Also that simulation we made was quiet high as I wanted some margin

Before all, thanks for your answer. So if I got you right, the busbar will be used to extend the BMS wires? Because I have no idea how to extend the 2 C- wires... So that's a busbar with on one side the 2 BMS cables, and on the other side the MPPT cable? Thanks

Ahahahah that could have happened for sure :ROFLMAO: Thanks mate!

Now that I understood the fact the whole busbar is actually like the positive pole, I still am wondering how you get those really tiny cables to fit into this hole? I see you used some sort of nut but how is the cable attached? Thanks a lot for your ideas btw

I honestly have no clue !! Thank you, I'll check that with my friend and see how it goes ! Thank you for informations !