Hello everyone,
This is my first post. I apologize if it is not on the correct board or if someone has asked these questions before.
I am planning on building 14s100p bank in the next year or two when I build my tinyhouse on wheels.Iam trying to gather enough knowledge to do it right, and hopefully on the first try.I've noticed that most, if not all, of the powerwalls I've seen were made usingrecycledcells from laptops and other products. It seems to me that it would be much easier to buy new cells, assuming one could find a good bulk deal. That got me thinking and I came up with a couple ofquestions:
Thanks, Zane
This is my first post. I apologize if it is not on the correct board or if someone has asked these questions before.
I am planning on building 14s100p bank in the next year or two when I build my tinyhouse on wheels.Iam trying to gather enough knowledge to do it right, and hopefully on the first try.I've noticed that most, if not all, of the powerwalls I've seen were made usingrecycledcells from laptops and other products. It seems to me that it would be much easier to buy new cells, assuming one could find a good bulk deal. That got me thinking and I came up with a couple ofquestions:
- Has anybodybuilt a large (10kWh+) battery bank from new 18650 cells?
- Would a bank of new cells nothave a longer lifer than that of one made from recycled cells?
- If you buy new, high capacitycells like the Samsung 30Q INRor LG Hg2, each cell could handle 15A or 20A, respectively. I seemost peopleuse 2A-5Afuses going from cell to busbar. Could I safely use a 10A or 15A fuse on a 15A or 20A cell? Is it likely thatI will ever actually take advantage of that increased draw capabilityor is it a case of bigger isn't always better?
- Is it bad to use the full 70% of your cells' capacity? Regularly?
- If you buy new, would you still need to check every cell's mAh before building, or can you test justa sample?
- Would the benefits of buying new cells outweigh the increase incost?
Thanks, Zane