I found this thread look for a replacement battery for my Octavia VRS 2L diesel as the winter draws in as its not very good at holding charge if left for a few days.
@Giff I am also in Switzerland but my car is fitted with 68Ah AGM battery.
Seems like 68Ah is replaced by 70Ah as a standard now.
I recommend Galaxus.ch to buy from. Very fast delivery & amazon quality customer service (available in English, German, French & Italian).
Payment by invoice, twint, creditcard, postfinance etc.
They have an AGM battery for 153CHF (from 3rd party swissbatt24)
Varta Silver Dynamic AGM E39 (12 V, 70 Ah, 760 A) - kaufen bei Galaxus
There is a filter on their website for Car Batteries where you can choose EFB type batteries:
Fahrzeugbatterie · Autobatterie - kaufen bei Galaxus
60Ah Varta N60 Blue Dynamic (12 V, 60 Ah, 640 A) - kaufen bei Galaxus 110CHF
70Ah Varta N70 Blue Dynamic (12 V, 70 Ah, 760 A) - kaufen bei Galaxus 140CHF
I have just ordered the Silver Dynamic for mine (AGM->AGM replacement). The garage wanted ~400CHF to change the battery & Im sure it would be a lesser brand than you can buy yourself..!!!
Gabbo