In message , The Natural Philosopher
writes
On 08/05/18 16:07, Graeme wrote:
Just to be clear, if I park the car for a couple of days, with the
battery connected, the battery goes almost flat, but left 4 1/2 days
with the battery disconnected (earth lead removed from battery
terminal), the battery remains fully charged.

No. You parked the car for a couole ofd days with te battery connected
and it did go flat and you parked it with it disconnected and it didnt.

Coincidence is not causation

OK, point taken.

Ammeter is a standard car 2 inch circular 30-0-30.

You are looking for milliamps not amps

OK

To flatten in 48 hours needs about an amp. Your meter says you are not
drawing an amp.

Ergo its not being flattened by the car.

Hear what you're saying, but reluctant to throw 60+ quid at a new
battery unless I'm fairly sure.
--
Graeme