I don't think leasing batteries is the answer. If you look at what Renault/Nissan did, you'll find out that :
- Renault EV sold to business with leased batteries are selling well (Renault Kangoo Z.E.)
- Renault EV sold to individuals with leased batteries are not selling so well (Renault ZoE, Renault Twizy (even though this one is "special"))
- Nissan EV sold to individuals without leased batteries do sell well (Leaf)
Renault batteries are leased EUR 960/year for 12500km - if you want to do 20000km/year, it'll be EUR 1224/year an so on... That's about $1700 for 12500 miles per year - when you know the Nissan Leaf cells can be bought for ~$5000, this looks like a rip-off...
I think that battery leasing is a move to:
- Keep pumping revenues from customers (no more oil change, timing belt etc.)
- Kill the 2nd hand market (nobody's gonna buy a 5 years old car with a $100 eternal lease on the battery)
- Force vehicule renewal (in a few years: do you want his old crappy car with 100 miles range with $100/m battery lease or this brand new shiny one with 200miles range and $70 battery lease?)
I own a Renault ZoE without a battery lease (really hard to find, especially in France...), which is a pretty nice little car (43kW 3 phase charging, Heat Pump, Battery is thermally managed...) but I'm really happy Tesla's here, big auto manufacturers are a pain in the ass, their EV are overpriced (for what they are), do not have enough range and are sold through dealers that hide them in the back of the shop because they don't and won't make money on it... If that was not enough, comes the battery lease on it - that makes their EV (Nissan/Renault) more expensive to use (per km) that their diesel equivalent. I wonder why they're not selling...