Yes, the leds flashing one at a time in sequence indicates that it is waiting on the car's charging timer.

The complete lack of activity sounds like it might be a problem with the 12V battery - that seems to be quite a common problem with EVs, though I've never had an issue. It needs the 12V supply to turn on all the bits and pieces to connect to the big battery. Perhaps the 12V was on its last legs, and attempting to power everything up was too much for it.

There's a few threads regarding 12V battery on the Leaf-specific part of the forum.

Good luck, and welcome.

Eta: according to this post, cars prior to 2013 did a particularly poor job of maintaining the 12V battery - 12v Advice The whole of that thread may be useful.

 

Thanks for your reply and advice.... I'm hoping it's just the 12v battery issue.

 

Have you got a trickle charger that you can connect to the 12V battery?

 

My next plan of action is to measure the 12v battery. Hopefully that will give me a indication

 

Don't forget to measure it under load if possible. Check out the age of the battery, it'll have a manufacturers date on it, they often last 3 years or less if run down regularly.

 

I managed to measure the battery last night and it measured 2.1v. So I guess its knackered???

 

Yes. There's a small chance that connecting a battery charger will get it working for a few months service life, but I would replace it. DIY task to fit, £50 for an ordinary 12V battery or twice that for an EFB type which might last longer.

Last time I looked, the Leaf used a battery size code 012, a common type.

 

Do EVs specify a particular type of battery? Obviously without the need to crank over an engine, they could be a different design, a bit like the leisure batteries you get in caravans.

 

Most EVs specify a regular, ordinary, not-huge starter battery. The 012 size seems common, and there are lots of brands and models which fit. The Exide battery finder app suggests several models of ordinary starter battery and one EFB (enhanced flooded battery) of this size, when I look up the Leaf, Zoe or E-Niro - for example. (That's not to endorse Exide brand in particular: there are 20 different batteries coded 012 and 012EFB in a popular supplier's web site.)

There may be some advantage to use a more expensive EFB for an EV; it's designed to operate less badly if used partially charged, where all lead-acid batteries work best if fully charged right after being used to start a vehicle.

Although an EV does not need the huge power draw of a starter motor, it does need a battery which can run all the car's electrical systems and energize the several high-voltage contactors (big relays) for maybe 20 seconds before the traction battery starts to power the DC-DC converter to provide 12V for all of those and to recharge the small battery. The electronics need a stable voltage rather than a starter motor's mere power.