Go for people, there seems to be a pattern of Jaguar avoiding what ever warranty they can, even with what appears to be sensible engineering arguments.
Good Luck, Best Wishes and Regards, John
David
With the CTEK you can buy a easy plug in adapter (I have one on my S-Type) which will show you the battery charge with a series of traffic lights colours, and allows a quick plug in when you want/need to use the CTEK. I find it adequate to control/identify the state of the battery. I do though religiously put mine on the CTEK at least once per month and for at least twelve hours.
https://www.ebay.co.uk/itm/304658209966?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20200818143230%26meid%3Dfea948544cb1430bb818233e7baa26d0%26pid%3D101224%26rk%3D2%26rkt%3D5%26sd%3D275466040484%26itm%3D304658209966%26pmt%3D0%26noa%3D1%26pg%3D2047675%26algv%3DDefaultOrganicWeb%26brand%3DCTEK&_trksid=p2047675.c101224.m-1
Best Wishes and Regards, John
Jonathon
Only my opinion, which admittedly you did not ask for. Is buying a second hand Catalytic Converter not a bit of a risky thing? I personally think it is one of those items that needs to be a new purchase with a written warranty.
Best Wishes and Regards, John