Fireproofing Battery Container

[Bluedog225]

Today at Restore.

 

[wpns]

Today at Restore t.

View attachment 212873

I did not realize that some of those were fireproof! Most of the ones that I’ve seen have appeared to be made of compressed cardboard, but I never tried to set one on fire.

 

[Bluedog225]

Yep. Two types. Look for the mineral board. Commonly available. Still around because offices want/ need fireproof ceilings.

 

[robbob2112]

Yeah at that point I'd use some cement board.

Pure cement board might let enough heat through it to catch wood studs on fire. I would do just firerock or the firerock-durock-firerock sandwich someone posted.

Firerock has a 4 hour burn time, a double layer of 1/2 inch sheetrock is 4 hours.

 

[robbob2112]

I’m looking at cement board, gypsum, mineral wool board, fiberglass “fire” blankets, and carbon felt.

Though I don’t know if carbon felt is electrically conductive in a way that would matter.

Seems to me that cheap, easily shaped, and light would be the things to look for.

My “fireproof” file cabinet is lined with a couple of inches of gypsum. Easy to stack pieces of 5/8 fireguard gypsum.

Rock wool panels, 2" thick, you can order them by the case and you can hold a blowtorch on one side and the other only gets warm, that is the air seeping through

https://www.amazon.com/dp/B01B1QSCYM

And this link from the burned house looked promising

https://defender.com/en_us/fireboy-xintex-manual-automatic-fixed-fire-extinguishing-system

 

[chrisski]

For my house, Based off all the fire threads I saw, I got UL rated batteries and stacked them in a UL rated case.


In my RV, I have 280 ah cells enclosed in plywood sitting on a metal slide out drawer.

 

[robbob2112]

How much was the cabinet?

 

[chrisski]

How much was the cabinet?

The cabinet is listed here

Fortress Power - DuraRack + eFlexDuraRack

Fortress Power - DuraRack + eFlex Expand your energy storage with the Fortress Power DuraRack. This iron enclosure stores up to 4 eFlex 5.4kWh batteries, and is expandable up to 4 units (15 eFlex batteries, 81KWh). The DuraRack includes integrated busbars and a DIN rail heater mount. This...

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