> Your car though would have to be always plugged in during the day
Or just have a second stationary battery to store up the energy while you're away during the day.
Or just have a second stationary battery to store up the energy while you're away during the day.
Not generally, although some are. The UL certification will put you at the top end of the $100 - $200 / kWh range I mentioned. Eco-worthy and UZ are two brands with such certification.
Will Prowse reviews a bunch of these.