Although I don’t think it will be that much by then. I would assuming any battery in 10+years time is a worthwhile upgrade. If I have car I like and its in reasonable condition why would I sell it when I can upgrade the battery to something better then what I brought it with? There is comfort in what you know. I am not into swapping cars all the time unless I have lots of problems with it.I never said you can’t, it’s 100% a convenience thing but I appear to have struck a nerve there...
It’s generally recommended to take the type 2 cable with you which means you have to mess around with it every time you use the car instead of just getting in and going. For a PHEV, that’s pretty much every time you drive the car. For the sake of a few extra £ you can leave the type 2 cable coiled up in the bottom of the boot for when you need it rather than having to mess around with it every time.
You can of course leave them in the charger but that defeated the point and it could get stolen as some chargers unlock the cable when charging is completed (they should still be locked to the car until you unlock it).
Another option which may work depending on your house layout is getting a blue plug fitted somewhere and using a portable charger like the Tesla UMC or Juice Booster which are capable of 7kw. They can be handy if you don’t have anything solid near by to attach a wall unit to.
You’d really spend north of £4K on a new battery pack for a 15 year old leaf?
Even if at the pack level costs got down to the fabled $100/kWh in 5 years time, a 30kwh pack is still going to cost $3000, plus mark up, shipping, fitting and VAT. Were not there yet at the cell level, let alone at the pack level.
I get doing it on something special like a gen 1 Tesla Roaster or a gen 1 Porsche Tycan, where there are not many out here and have a hope of becoming a classic. But a Leaf?
At best you are looking at a used pack from a crashed car but even those are going to fetch significant sums of money on the used market because of how valuable the cells are, even well used ones.
People literally scrap perfectly serviceable old cars that have no faults because of wear and tear items that cost a few hundred £ to replace like new disks and pads or the timing belt needs changing. Perhaps what I should have said only a handful of people are actually going to do it...
You say handful but on top of the people like me you also have a large amount of people that are not very good at change and would rather keep a car they are happy with then upgrade to a new car. At some point they will be forced to buy a new car and if they choose an EV I can see those people keeping the car and upgrading the battery over getting a new car again.
To be honest I have no idea on numbers and ratios of people who would and would not do this. Only that I think it would be more people then you would expect. Some people get attached to new cars, others like me don't see it as cost effective to swap to a new car and would rather upgrade the battery. In short if I buy a 9k or 20k EV now and its running well I would rather buy a new battery in 10 years then a new 9k or 20k EV in 10 years.