I have 32 cells I'm putting into 16s packs, each with its own BMS. My setup is going to be stationary, although if I need to move things around I want it "relatively" easy to move (not that 160 pound battery bank is ever going to be "easy").
1) Layout.
Having 16 cells in a row would be more messy from a wiring standpoint (wires from opposite ends, longer runs), plus it seems like it would be more awkward to move if I did ever need to. So two parallel rows of 8 cells seems better suited. However, Is there any concern with the one bus bar that links the two rows together being longer than the rest?
2) Bus bars.
The bus bars that were provided with the cells are totally wimpy. Max current draw by the inverter would be just under 200A, and this should be split between the two battery packs. Realistically, I won't be pulling near that for any sustained period (for one thing, the batteries would run down awfully fast), but I want to design for worst case scenario. So worst case, if one pack was offline, and I started pulling 200A from one pack, I don't want to overheat the bus bars. What size bar would I be looking at? 1/8" x 3/4"? Or should I go up to 1" wide?
3) Bus bar material.
Pretty clear I would use copper. I was assuming tinned copper (can get from onlinemetals.com). But I have seen people use untinned copper bus bars. Seems like that would be an issue, but is it a non-issue if using noalox? Is that why some have not used tinned copper?
1) Layout.
Having 16 cells in a row would be more messy from a wiring standpoint (wires from opposite ends, longer runs), plus it seems like it would be more awkward to move if I did ever need to. So two parallel rows of 8 cells seems better suited. However, Is there any concern with the one bus bar that links the two rows together being longer than the rest?
2) Bus bars.
The bus bars that were provided with the cells are totally wimpy. Max current draw by the inverter would be just under 200A, and this should be split between the two battery packs. Realistically, I won't be pulling near that for any sustained period (for one thing, the batteries would run down awfully fast), but I want to design for worst case scenario. So worst case, if one pack was offline, and I started pulling 200A from one pack, I don't want to overheat the bus bars. What size bar would I be looking at? 1/8" x 3/4"? Or should I go up to 1" wide?
3) Bus bar material.
Pretty clear I would use copper. I was assuming tinned copper (can get from onlinemetals.com). But I have seen people use untinned copper bus bars. Seems like that would be an issue, but is it a non-issue if using noalox? Is that why some have not used tinned copper?