On Thu, 08 Feb 2018 20:50:08 +0000, Huge wrote:

On 2018-02-08, Chris Bartram wrote:
On 08/02/2018 11:53, F wrote:
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.

With a decent, modern, well-regulated charger, it isn't an issue. With
an old, poorly regulated, poorly rectified one I'd be more cautious.

CTEK ones are great, and designed to be used like this, and you can get
leads you permanently connect to the car ...

and ~£70.

My £6 one works just as well.

I had a look at the description in the linked page and they do seem to
be 'just the ticket'. The only concern I had was the absence of any
mention as to what the 'maintenance' voltage was. If it's 13.5v, ok but
if it's 13.8v I'd be inclined to plug it in via a cheep 'n' cheerful
electromechanical timer set to let it run for an hour or two per day
rather than chance leaving it permanently floated at 13.8v month after
month.

--
Johnny B Good