Shawn Hayes
Learning Everyday
In doing my 16s4p setup, I ended up using 5/16” aluminum plating with 1/4” rods between every pack of four, 10-rods per 16s. (See photos) I used rubber matting in the inside of the aluminum where the cells contact. Originally was using rubber matting between each cell, but that was to thick for my racking & resorted to thin plastic between cells as cell separators.
After charging to full capacity and arranging the packs in the cabinet on the rack. I used 8 inch lbs of compression at roughly 98-99% SOC. It seems the swell variation is around 1-mm or less and that’s mostly in the battery center or middle.
I may adjust my torque once I see how much compression varies once they’re cycled several times and charged back to my 80% target.
My holes were drilled, one @ 2.5” and the second @ 6” from the bottom of the aluminum plates. Attempting to keep compression evenly spaced so not to compress the edges too much. So knowing that I’ll be charging/discharging my batteries at around .33C rates and in the 80% to 20% range, I felt this was good enough from what I’ve read and researched on the forums. Many options & opinions!!!
After charging to full capacity and arranging the packs in the cabinet on the rack. I used 8 inch lbs of compression at roughly 98-99% SOC. It seems the swell variation is around 1-mm or less and that’s mostly in the battery center or middle.
I may adjust my torque once I see how much compression varies once they’re cycled several times and charged back to my 80% target.
My holes were drilled, one @ 2.5” and the second @ 6” from the bottom of the aluminum plates. Attempting to keep compression evenly spaced so not to compress the edges too much. So knowing that I’ll be charging/discharging my batteries at around .33C rates and in the 80% to 20% range, I felt this was good enough from what I’ve read and researched on the forums. Many options & opinions!!!
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