Well, my new battery was ordered Friday, deliveredsaturday morning and fitted quickly enough that I didnt lose all the radio presets and phone voice commands

.
Don't know about all the technicalities but car definitely starts with a significantly faster turnover and I've got a 4 year guarantee (by which time if I still have the car it'll be at about 240 k so I guess the battery will be the least of my concerns)....
J