This thread deserves a bump.
I recall reading it, over 2 years ago now, it got me a little bi-polar w
here I read a few posts of people having to replace their batteries, and I first worried my battery might die outside of warranty, and yet drooled over owning this newly created 350V 85/90 pack, (which most have concluded is simply 14/16ths of a 100 pack). Like many others, I now also have that pack, and I am ecstatic to say the least. Woke up at 2am last night I am so excited about retrieving my car and putting pedal to the aluminum and feeling the butt dyno!
As most of us have observed in many other battery replacement threads the new replacement pack has gone from 1014116-00-A, to B, and now 1014116-00-C versions. If anyone has any valid speculation as to what these changes are please elaborate. Some questions/thoughts I have are:
- Perhaps the first ones (versions A/B) used reused cells/modules from salvaged 100's, and the C version are all new? (yes, the packs are labeled as "new" but @wk057 speculated they were using previously used cells/modules to build the pack, with new BMB/BMS components and updated venting etc. Most probably a failed 100 pack with a faulty module removed, along with another one, the knowledgeable ones assumed.) Perhaps they ran out of salvaged packs, and now C revision has all new cells/modules
- Perhaps all versions have previously used cells/modules- with battery management board/system revisions only
- Perhaps all versions had new cells and revisions were BMS changes or something else
- Perhaps versions A were salvaged, but B and or C have newly built modules with old stock cells (NOS),
- Maybe different chemistries in the cells? I am not as curious as many others following the company cell improvements in the model S 18650's over the years, but someone earlier in this thread suggested a possibility that version A to B might be a cell chemistry change, again maybe due to NOS supply.
Not sure what else might constitute a change, new fuse? updated plug? cooling? something else? but I don't think they would require a letter change for say a change in the colour of the penthouse.
I haven't seen any complaints in any of the revisions of this 90kWh 350V 1014116-00 pack, I optimistically presume whatever C means that this is as good as a 18650 can currently be, considering Tesla is using 10+ years of data and experience to construct it, within the possible constraints of the pack dimensions itself of course. I just hope this pack proves reliable long term, because I plan on owning this vehicle for a while yet.