The only thing i can think is that it went through deep water and as being low down by unplugging them it could be a way to test again when they are plugged back in
I fitted a Bosch AGM S6 to my C5 X7. It needed it, but leaving it standing for a week was hopeless. I still had to frequently top it up over the pandemic, so in the end, I put the shunt fuse into Park Mode - to turn off some of the systems to prevent severe battery drain. Never had an issue after that - just moved the fuse back to customer mode when I started using it more regularly.seanrx wrote: ↑24 Aug 2021, 11:43So, it was a battery fault.
Load test of 8.7 volts!
And on last recharge and refit to car, the volts dropped to 12.4, just with systems booting up.
It's a large battery too, 680a x 74ah. Bosch S4.
Previous owner was taking no chances for this 2.0L car.
I will post a Q about my alternator and that will be fault finding complete.