Have now checked my battery and found it to be an EFB.
It would seem to be that they have decided to fit the Edition variant of the Kodiaq, which I would assume is to cope with the demands placed on it with the extra electronics fitted to it as standard.
Q. What are the differences between EFB and AGM batteries?
A. EFB batteries have been introduced as a lower tier option to AGM batteries in terms of performance and durability. EFB technology relies on improvements to existing flooded technology through the addition of Carbon additives in the plate manufacturing process. AGM batteries benefit from the inclusion of unique design features not found in wet-flooded batteries. These include glass mat separators, recombinant lid technology and higher pack pressures to facilitate improved cyclic lifespan. AGM batteries are better suited to meeting the demands of higher specification vehicles that include one or more of the following technologies: Start Stop, Regenerative Braking and Passive Boost.
So I've never had great experiences with batteries in my previous Honda CR-V (which I never believed had a big enough battery) with the radio frequently draining it just by having it on for about 10 minutes without the engine running.
Now with this stop/start and a huge Infotainment screen I'm even more paranoid.
I decided to buy a CTEK CTX Battery Sense monitor. Connects directly to the battery and then uses Bluetooth to report to your phone app the charge state of the battery.
It's only been installed a few days but here is a screenshot: