That's all right what you are saying, I did respond to his comment to say my Cteck is lower than what he had suggested and was then told as long as it is set to an AGM battery.

Not all experts agree on whatever they are asked in whatever field is being discussed.  2017 SDV8 4.4 silicon silver AB
2012 TDV8 4.4 Stornaway Grey AB
2011 TDV8 4.4 Buckingham Blue
2012 VW V6 3.0 Tougreg

I have 3 of the devices. In the RR connect directly to the 2 battery.

Click image to enlarge

Hi Luxmoggy

Which devices and app are you using on your batteries? Presumably both the Vgate as your screen looks different.

Eric. 2018 L405 4.4 SDV8 Autobiography
2010 L322 3.6 TDV8 Vogue SE, 171000 miles and counting….

I am using this device.
https://amzn.eu/d/iMmvBTm

The software that normally you install can monitor one battery. Then I found this software by the same author.

https://apps.apple.com/gb/app/multi-batt-m...1345741752 SDV8 AB MY 2020
MINI Cooper S Cabrio
Kit: Jaguar XK140 (in progress - the website is link to build)