On 09/11/16 01:15, Davey wrote:
On Wed, 9 Nov 2016 01:09:24 +0000
Bill Wright wrote:

You've done the customary simple test to make sure it is the battery
and not the charging circuity? Checked the battery terminals are
clean and tight? Checked the battery water (if not sealed)?

If it started the car on Saturday, but wouldn't on Tuesday, then I
agree that I would suspect the charging circuit rather than the battery.


Difficult to guess with such an imprecise "wouldn't start". If the
engine turned over, but too slowly to start, I'd suspect the battery: if
the battery had been reasonably lively in the recent past, but was then
suddenly joined the choir invisibule, it could be the alternator diodes
allowing a massive discharge. Astra G 1.7 alternators are a bugger to
change three days before Christmas in a very cold garage.

A jump start to get it going, then two minutes with a multimeter might
be a sound move, as others have said.

--
Kevin