I believe some versions are slightly different but on my 2016 Octavia I used this:
VCDS coding required:-
From the Main screen:-
Select Control Module [Select]
Select 19-CAN Gateway [Select]
Check Protocol (Top Left) = UDS
On right hand side off screen under Advanced Functions -
Select Adaptions-10 [Select]
From USD Adaption Select Channel
Select drop down choice menu at top and scroll down too
the following four channels, selecting each in turn and
inputting the relevant data about the new battery.
IDE03256-MAS06105-Battery adaptation-Rated battery capacity,
IDE03256-MAS06106-Battery adaptation-Battery technology,
IDE03256-MAS06107-Battery adaptation-Battery manufacturer,
IDE03256-MAS06108-Battery adaptation-Battery Serial Number,
OLD Battery
Capacity 69 Ah
Technology EFB
Manufacturer JCB
Battery Serial Number 1111111111
NEW Battery
Capacity 70 Ah
Technology Binary-AGM
Manufacturer VAO
Battery Serial Number 1111111112 (increment by 1)
gregsko