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Interesting thought, perhaps this is what was intended but they never thought to inform the owner and then just let it lapse entirely.The current owner seems to be none the wiser for it.

If I buy a used vehicle with FSD but which runs on the 2.0 (or 2.5) autopilot computer... am I eligible to request the free upgrade of computers to 3.0 at Tesla SC, despite it not having been ME that specifically paid Tesla for the FSD subscription (only paid indirectly via private purchase of...

And in the case of this scenario where a 90kwh 400v has been replaced by a 75kwh 350v, do you have a feeling what will have happened to power output?

Managed to get a photo of the label...

'90 pack in a 75 shell' - meaning you think it could be that the replacement is after all a 90kwh battery with the wrong label ('75kwh') Would it be strange that the invoice stated 75kwh in that case though?

haha oh brilliant, thanks Bruce, I didn't take my tea either seemingly!

Oh wow that's super interesting... So the number is purely capacity, but need not have any relevance the power output. What exactly dictates the power output in Tesla's case? Agreed that in any case it's a strange methodology on perception at least, especially where the owner doesn't know the...

Apologies Bruce, probably makes sense to merge both into here. Must've duplicate posted it in the other forum by accident. Many thanks!

Ah okay, hopefully somebody super techy on batteries can assist us here in that case. The question is essentially: Does a brand new 75kwh battery retrofitted into the Model X 90D, allow the car to perform equally (in terms of acceleration etc) to the original 90kwh battery which has degraded to...

I did wonder, but the main computer shows 90D, so seems unlikely - also, why go to all that trouble assuming you could change the display, only to then tell me the battery got changed and share the paperwork so freely which shows it got the 75khw battery installed as the replacement. I honestly...

Hi Les, not been able to inspect battery label as yet, but the invoice for the warranty replacement has been shared and that shows the following information which seems to suggest it is indeed a 75kwh battery... and a remanufactured one at that, so heaven even knows what condition that itself is...

Funnily enough I just had my membership to that group approved after a long wait...! Thanks for the suggestion!!

Given the performance reduction, I just can't see how Tesla could justify the replacement of the 90KWH battery for a 75KWH battery... no matter if the range were comparable to the degraded original 90KWH.... unless performance degrades in line with battery range?? (something I had never assumed)(

Hey thanks for the reply Zythryn... the original owner seems a little uncertain (perhaps not too technically minded). The invoice he shared seems to allude to it being replaced under warranty: PAY TYPE: HV Battery Limited Warranty

Thanks David. Do you have thoughts upon how this might affect the 'performance' of the car (BHP/0-60 etc). I am of the impression that warranty replacement batteries benefit from no further warranty extension beyond the original battery date/mileage. The current owner (seller) has shared with...

Moderator note: This thread contains a merge of posted to two different forums. Hello all, new to the forum here since as I'm currently looking to purchase my first Tesla, a Used Model X here in the UK. I've found one which just came up with a replacement battery after a U029 error... but...