Frank in Thailand
making mistakes so you don't have to...
New adventure..
I went inside the battery room.
As the exhaust fans where working, and they are temp based,
I felt OK to close the door.
I used wood (MDF) to cover the cells and sit on top, and to prevent accident if something falls
2 left over pieces, 10mm, but strong enough to sit on, as the threaded bolts aren't soft.
Working to install AMMeter above the inverter I can't hang to the front, over the battery pack, that long.
This morning opened the door and felt more heat then I expect.
The fans are sucking out air, right?
And I smell some burning.
First though it was from the AMMeters I fried yesterday.
(Apparently incompetible with my 450v solar, while rated 600v)
Then I started feeling for the temp...
The inverters not hot, battery was!!
Looking more closely..
The MDF slowly glowing....
I took off the sheet and brought it outside:
The cells look like this:
And glowing coal falling off the sheet when I removed:
For all I can tell the fire started between those 2 threaded rods.
They are a little longer then the rest and would have made some imprint in the MDF.
Lesson learned:
Wood is conductive!!!
With 1000Ah, there is a lot of power.
Even enough to make contact between 2 threaded rods with MDF sheet, and heating it up far enough to catch fire.
I went inside the battery room.
As the exhaust fans where working, and they are temp based,
I felt OK to close the door.
I used wood (MDF) to cover the cells and sit on top, and to prevent accident if something falls
2 left over pieces, 10mm, but strong enough to sit on, as the threaded bolts aren't soft.
Working to install AMMeter above the inverter I can't hang to the front, over the battery pack, that long.
This morning opened the door and felt more heat then I expect.
The fans are sucking out air, right?
And I smell some burning.
First though it was from the AMMeters I fried yesterday.
(Apparently incompetible with my 450v solar, while rated 600v)
Then I started feeling for the temp...
The inverters not hot, battery was!!
Looking more closely..
The MDF slowly glowing....
I took off the sheet and brought it outside:
The cells look like this:
And glowing coal falling off the sheet when I removed:
For all I can tell the fire started between those 2 threaded rods.
They are a little longer then the rest and would have made some imprint in the MDF.
Lesson learned:
Wood is conductive!!!
With 1000Ah, there is a lot of power.
Even enough to make contact between 2 threaded rods with MDF sheet, and heating it up far enough to catch fire.