Allthough its for a full size Range Rover, I seem to get answers here unlike fullfatrr site, so hope someone can help
I have a 2021 Range Rover Fifty P400e. On my previous Range Rovers, I fitted a Ctek comfort connector to the under bonnet battery connection & had the plug in terminal hidden down by the lower grill enabling a ten second connection to the Ctek
I assume there is an ordinary battery fitted to the P400e (or not ??) The under bonnet connection is there, so the question is, does the ordinary battery get charged when using the granny charger or is it worth connecting up a Ctek. Car is not used that much, but found on the previous Range Rovers I was getting the low battery, start engine message until Ctek was fitted. Range Rover Sport (gone): Mercedes S63 AMG Coupe: 992 Porsche Carrera 4S: Range Rover Fifty P400e

Got an answer on fullfat site. Yes there is an ordinary battery & Ctek is now wired in through comfort connector Range Rover Sport (gone): Mercedes S63 AMG Coupe: 992 Porsche Carrera 4S: Range Rover Fifty P400e

If you are charging the main battery there is no need for a CTEK on JLR PHEV as it charges the 12v system.