"Dave Liquorice" wrote in message
idual.net...
On Thu, 9 Mar 2017 16:14:24 +0000, The Natural Philosopher wrote:

On the basis of advice, I disconnected the battery five days ago
(Sunday), charged it up, and left it disconnected. This morning
(Thursday) I reconnected it; the engine started immediately
without
issue (and the same for multiple subsequent starts).

What do you suggest for the next step in the investigation?

Well you have remade the connections.

Surely the OP has remade the connections many times - every time the battery
has been removed to recharge it and replaced to start the car. Of all the
suggestions that people have made over the week that this thread has been
running, that's one thing that you can discount: bad connections to battery.
Bad connections to alternator and to ground are a different matter.


It should be fine now as the lost likely explanation was a bad
connection.

Yep, leave it and use as normal for a week or so and see if the
problem returns.