This side up?

I bought this battery that weighs 75 pounds (free shipping). The first thing that came to mind is which side should be up. It has a voltage meter so it would be nice if it was upside right, but that would mean the A123 cells on the bottom would be crushed(?). I would think manufacturers would make it clear how to place a battery if this was important. I decided place on the side as shown in second picture. I know this picture is an older model of the battery, but I don't have an inside picture of the new model. I am assuming both batteries have the cells arranged similarly. I do not know why Evo battery website does not update images of their items when upgrading them. Just wondering if anyone has considered this issue? Leaking batteries has been recently mentioned in Will's videos.

Interesting question. I'd say the vents should be at the top. Have you called/written their support? Let us know what they say!

Will has a video where he tears-down the Bigbattery. The top of the cells and BMS are under the plate with the power button and LCD readout. The cells will be vertical if you place the battery with the back-side down. There is another YouTuber who did a tear-down of the BatteryEvo but I can't find it today.

I may be wrong but I think my battery has different cells. I would not be as concerned if it had the cells in the battery packs in Will's video since each cell is encased with plastic. There are 48 cells shown below in my battery pack. Not sure how big they are or how they are arranged but the image in my first post gives you an idea (there does seem to be some type of metal around each cell). I have not seem a tear-down video of this type of battery (with the cells shown below). My concern is that they do not seem to have support when laid flat and stacked on one another and that would occur when sitting with the BMS at top.

Dr Mark said:

I may be wrong but I think my battery has different cells. I would not be as concerned if it had the cells in the battery packs in Will's video since each cell is encased with plastic. There are 48 cells shown below in my battery pack. Not sure how big they are or how they are arranged but the image in my first post gives you an idea (there does seem to be some type of metal around each cell). I have not seem a tear-down video of this type of battery (with the cells shown below). My concern is that they do not seem to have support when laid flat and stacked on one another and that would occur when sitting with the BMS at top.
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I can see the difference now. I just saw the power button and LCD. I didn't notice that the Anderson plug was there as well.These are definitely different from the Bigbattery/BatteryEvo in Will's video. BatteryEvo has answered my email messages in a day or so. You can also call them. (818) 337-0929. They are on Pacific time.

If I ever need to keep the battery in an upright position, I will contact them. For now I have it on the side as shown above in first post.

Pouch cells like that do not have a vent. They can be used in any orientation. A stack of 48 of them is still not a lot of weight. The mounting fixture is typically designed to put some pressure on the cells to keep them from bulging. I would hope the company that designed the casing would take the maximum PSI loading into account. In the Chevy Bolt, their maximum stack is limited to 30 cells with a center wall and then another 30 cells. They do lay it down so the cells are vertical plates, but they are completely safe when stood on end in the stack of 30 with about 20 pounds of pre load clamping the stack with threaded rods. At 48 cells, they are probably still fine, but they may have a wall in the middle making it two stacks of 24 if the loading is critical. The surface area of the cell is quite large, so even 100 pounds is not that much PSI. The picture shows it as 10 inches wide. So maybe the cells are 6 x 9 or 54 square inches. 100 pounds would still be under 2 PSI. It's not that much when you look at the whole picture. I just checked their web site. The 48 cell 24 volt box only weighs 51 pounds total, so not a problem. That is under 1 psi if the entire weight of the box was resting flat on one cell.

I appreciate your insightful reply. I wont be concerned if I need to put it upright. After watching the leaky battery video, I had been concerned.