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Media Side view showing the staged height difference for batteries. Hope it will hold them up, the channel is only 3mm thick, each post holds 100Kg, the spans are 900mm and must hold 100Kg per channel, I suspect a little sagging in worse case?? Overall the batteries will place 800Kg unto this frame.
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@lyse Good point Lyse. I didn’t paint the welding either, just dropped it into the concrete. Some say iron doesn’t rust further once it has a coating of rust on it, but should the frame fail after 10 years of use, I guess I will have to weld up another one. The KOH electrolyte is corrosive in the batteries, and we use Vaseline to protect the battery rail connectors, so I will try to paint over the ends of the square tubing though they are welded up by the channel that sits over the top of each on.