2nd Battery in the T6 Multivan

[Bryn23]

I'm not sure if VW can do a factory fit at the dealership,(worth asking) i ordered it as an option when i ordered my van and it was done at the factory in Germany.

it was only $500 option, so i took the easy way out, i ran the multimeter on the charge to the Aux battery and it was 14.55-14.57 during a drive, but since that i've see that others in the UK are getting variable voltage coming through, due to brake regen...

Now that the swivel seat is on i can't get to the battery to do further testing, well until i strip it and line it with Sound deadener.

The newer aftermarket with low voltage dc-dc are smarter and better, (different AGM charging modes and lithium profiles) but would cost more than the $500 factory fitted at time of build.

it's annoying when ordering options as they don't seem to know what is included in the options..

[irsa76]

I'm pretty sure there is a detailed options listing out there, I know there was one for the T4.
As for the combined second battery/cool box in the Multivan, personally I'd prefer just the battery but the cool box is handy so the wife agrees it's a no brainer option.
Now to figure out which pure sinewave invertor to use, which will wait until I actually take delivery of the van so I can workout how much room I've got to play with.