Well I rolled the dice and bought an 85kwh model S pack off facebook market place.
It was taken out of a car that threw a battery error of some sort, and then a local EV shop swapped it out for a newer 90kwh pack (or so I'm told anyways).
However, I found out after the money had already changed hands that the shop who swapped it usually rebuilds the old packs, and this was the first one that they took a pass on. Apparently it had already been tampered with by some person that was "known" to them.
So it stands to reason these modules are going to be in bad shape...
I dismantled the pack tonight without issue, and the 16 modules are now in my garage.
I don't know how to connect to the BMS boards yet so all I know so far is that they all read 22v
(I will be reading up on module testing this week while I'm on Vacation)
TLDR - The Question:
It looks like the pack must have had a small leak at some point that allowed a small amount of water in, which then condensed on the surface of the modules. As a result, most of the modules have some rust on the tops of the cells,....
Is this module more likely to catch fire spontaneously ?
Is there anything I can do to sleep a little better and feel confident that these things wont spontaneously catch fire?
