Waiting for UK customs to clear my crystal set so haven't yet looked at battery disconnection. Though looking at this link :
https://www.newtis.info/tisv2/a/en/g...der/1VncunMarg : sent from Martin @ Car Analysis, it shows part of the process involves disconnecting the windscreen wipers and using a special tool to do so lol. I'm guessing you would only need to do this if you are removing the battery......I hope