diy solar

diy solar

Recent content by TWG

  1. T

    Basic Electrical theory and Cell arrangement / interconnections

    I'm new to building LiFePo4 batteries from individual 3.2v cells. My question is how important is the configuration of the various parallel subset, and how they are inner connected. I'm not talking about when cells are in parallel and when in series. But how the cells are arranged and connected...
  2. T

    Top Balancing "How to"

    Thank you... I was at work and did not have time to read this.. Looks like I have to get one of those variable DC power supplies... Thank you for your reply...
  3. T

    Top Balancing "How to"

    In Will's video I thought I remembered, he mentioned you can also put four 3.2v cells in series for 12v unit and balance that pack... Did I understand that correctly? That this will is also a way to top balance cells if you do not have a 3.2v source to do the cells in parallel?
  4. T

    One bussbar to rule them all... using one bar to connect multiple battery terminals.

    I was going to do that originally - but for a small 100ah battery - having 4 BMS seemed too complicated. I can see doing it for a large system like yours... I think LiFePo4 batteries are addicting... I want MORE POWER!!!!! Good thing I'm poor.... I really miscalculated what it would cost to...
  5. T

    One bussbar to rule them all... using one bar to connect multiple battery terminals.

    I was thinking of one of these configurations... Would it matter on battery B where I connect for the load? Do you try to keep the farthest distance from the last connecting buss bar? If so.. the battery A would have to be connected to the inside terminal ends... Or does it matter THAT much?
  6. T

    One bussbar to rule them all... using one bar to connect multiple battery terminals.

    I'm new at all this so I have to double check everything... but the studs on those batteries will only accommodate a 1/8inch bar thinkness and a M6 nut. I was going to use aluminum bar but at a max 5C dump on 16 of those batteries it exceeded the capacity of the aluminum at 1/8in thickness and...
  7. T

    One bussbar to rule them all... using one bar to connect multiple battery terminals.

    Would it cause any problems to connect 4 topband 3.2v/25ah packs in parallel with one copper bus bar rather than 4 separate ones? CORRECTION... ( I was still asleep!!!) I did not state my question correctly... I should have said "TWO buss bars ( one for each polarity) instead of Six ( three to...
Back
Top