Almost made a potentially fatal mistake with the battery build.
I had nothing to prevent the pack shorting between each length because I had cut my nickel exactly to 84mm.
I think the best solution here is to carefully bend each piece back and use some scissors to trim away material. As you can see I’ve already started to do exaclty that.
Think I’m going to call it a day today and get to work on it tomorrow.
I avoid this by always cutting the nickel to match the distance between the outside pos terminals rather than the full group’s width. You can also run fish paper between the two rows of groups. Will likely be easier than trying to go back and cut nickel with metal scissors. That’s just asking for a short imo
You’re gonna wanna lay down a strip of fish for the balance leads to sit on. It’ll keep them nice and flat and will also add some redundancy for your safety precautions.
Not really. It’s slighly safer in some situations but you’ll note that the neg terminals and the positive of the next cell are wired in series already. Just make sure you’re following the wiring diagram of your bms and to check the voltages from your wiring harness before you plug it into the bms. If it’s wired wrong you’ll pop it. Start from B0 and then work your way across. Voltages should increase with each pin according to the SOC your cells are in (e.g. B0-> B1= 3.5v; B0-> B2 = 7.0v and so on).
Today is a big day. Nagini has come to life. She has been born.
Once upon a time she was just a dream. Something I considered as a project for the future. Now, she’s learning to walk. I can already feel the bond growing between us.
I almost cried when I felt the jolt of her enthusiastic motors almost throw me across the living room.
Today Ive finished up the battery and I’m feeling very proud of how it’s turned out.
I appreciate that it’s being noticed. Part of it is knowing the community will shun me otherwise haha. But mostly, I want this to be a work of art that functions without fail.