I've got 16 272 lishens on order and figured I'd start fabricating the boxes. They are going in a van, so I'm very concerned about properly securing everything.
I started with a wooden mock up of a 4 cell pack and used 3/4 angle and HDPE plastic sheet for the structure. I welded on nuts across top and on the end for hold downs and compression using bolts. Once I have my cells, I'll need to properly size those hold down and compression bolts (and I'll use another nut to lock them in place). I'm planning to use a thin layer of cutting board material between each cell.
I think the design is going to work, but I'm wary building the other 3 before my cells arrive and I can test with actual cells. I screwed up my first attempt a bit by not making it tall enough (not considering the stud lengths) and was concerned about contacting the metal frame when sliding the cells in. I added an extra bit of clearance which also gave me room to add a positive terminal fuse on each battery. I might also add a section of 1/8 steel strap across the end and on the compression plate just to make sure the HDPE has some extra support.
Any feedback is welcome. I probably have another few weeks before my cells arrive and I'd like to build the boxes, but just want to make sure I'm not missing something.
concerned I'm overlooking something.
I started with a wooden mock up of a 4 cell pack and used 3/4 angle and HDPE plastic sheet for the structure. I welded on nuts across top and on the end for hold downs and compression using bolts. Once I have my cells, I'll need to properly size those hold down and compression bolts (and I'll use another nut to lock them in place). I'm planning to use a thin layer of cutting board material between each cell.
I think the design is going to work, but I'm wary building the other 3 before my cells arrive and I can test with actual cells. I screwed up my first attempt a bit by not making it tall enough (not considering the stud lengths) and was concerned about contacting the metal frame when sliding the cells in. I added an extra bit of clearance which also gave me room to add a positive terminal fuse on each battery. I might also add a section of 1/8 steel strap across the end and on the compression plate just to make sure the HDPE has some extra support.
Any feedback is welcome. I probably have another few weeks before my cells arrive and I'd like to build the boxes, but just want to make sure I'm not missing something.
concerned I'm overlooking something.
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