I've SORNed my car as I'm not going to be able to drive it for a couple
of months. No doubt the battery will eventually need a charge but do I
really have to disconnect it as current [pun not intended] advice seems
to indicate? If I do, I will, no doubt, have a whole lot of setting up
to do on the various electronics.

It's many moons since I last charged a car battery and at that time I
just clamped the charger leads on and let it get on with it.

--
F