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Built Like a Bunker: How LFP Batteries Blew It Apart


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On November 17th, 2022, a dedicated solar battery storage building exploded on a property in Riverside County, California. The owner built it with 2x6 framing, 3/4" plywood sheathing, double insulated, and deliberately airtight. Six Discover AES LiFePO4 batteries. Roughly 44 kWh of stored energy.

The explosion leveled the building. Structural debris was found within a 100-yard radius.

It was never reported in the news.

LFP batteries are widely marketed as the safe lithium chemistry. They are harder to push into thermal runaway — but they aren't immune. And in a sealed enclosure, the gases they release during a failure have nowhere to go.

This is the Cal Fire investigation report nobody saw.

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