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I have so many big batteries in the house, it's scary. I've been thinking of building a fireproof enclosure for them from rockwool or ceramic fiber.

Our big batteries, other than the EV in the garage, are from the e-foil, they are like 40lbs, lots of energy.

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In the RC model aircraft community a common recommendation is to create safe containers to charge large lipo batteries in. People often charge their batteries in old barbecue grills, toolboxes, sandboxes, etc.

I think they can explode even when not charging.

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