electricbiker1
1 µW
- Joined
- Mar 13, 2019
- Messages
- 4
Hello, i have a battery design in mind and was wondering if i am misunderstanding something regarding the busbar. So the battery will be a 20s20p battery of Samsung 30q cells. From what i hear 30q cells are very similar to lg hg2 cells, which means its possible to discharge it at 30a each for a few seconds. So now you have the 20 cells in parallel and you want to draw about 500-600 amps. So now you put a long copper bar parallel to your battery main positive and you connect each cell to the copper bar with ( 2 ) 0.3 (thick) x 8mm ( wide ) nickel strips which from what im reading are each capable of 15 A each. Now for my main question, the copper busbar that you are connecting to is 0.5mm thick 6.3mm wide and a total of about 16 - 17 in long. Now from the chart that tells you the Amps measurements of strips, it says for those copper measurements i should be able to get 36A for every 3mm squared. So now at the end of the 16 inch bus bar, cant i just connect my 4/0 wire with a nut and bolt, and draw about 500+ Amps? If im reading/ understanding everything correctly.
https://www.electric-skateboard.builders/uploads/db1493/original/3X/e/9/e99184eed42645d3a97defa445c8d011be6b6277.jpg
https://www.electric-skateboard.builders/uploads/db1493/original/3X/e/9/e99184eed42645d3a97defa445c8d011be6b6277.jpg