diy solar

diy solar

Aluminum busbar instead of copper?

I was using ox guard. Based on feedback here I ordered this for my next expansion, price has jumped $5 in a few months.
NO-OX-ID Two 2-Ounce Tubs A-Special Electrical Contact Grease - Improves Conductivity and Fights Corrosion in Automotive Marine Industrial Maintenance Antenna and Railroad Applications https://a.co/d/9SvamFP
 
What!!! I want to see that 😁
As it's possible to find crash Leaf with good battery at low cost, you should have a good reason to build a battery. Greater capacity or simple challenge?
Actually it is hard to get really good battery for it. I ordered CATL cells from China, ~$4,600. It will be a bit of work, but I got the car very cheap. Tekna 2019, fully equipped (heat pump, PRO pilot...) for $4,000. Trade value of used is around 15k here. I'll be posting the progress here: https://mynissanleaf.com/
Well, 25 x 4mm. That give 100mm2 x 0.6 (alu VS copper factor), so 60mm2 or close to 2/0 AWG.
It's way enough. I would probably go with 20x4 or 25x3 if this is available material.
That was readily available and cheap. It doesn't hurt to have some extra metal :)
Your aluminum cell terminals probably have a finish on them. If no, oxidation will caused bad conductivity.
When I build battery with aluminum busbars, I remove oxidation with a scotch brite and immediately apply a thin layer of No-Ox or Penetrox.
That ensure good conductivity at the contact by keeping moisture and oxidation out.
Thanks for your hint, I'll take care of that.
 
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