minutes, you wheel it out to your car, plug it in and it charges injust over 30. and it works with any make of car? that's right, any electric vehicle. so how far will that get me? this is a 1! kilowatt hour unit. that will give this nissan leaf about 80 miles of range which is more than enough of the average daily commute here in this country. now the big question — how much does it cost? so this unit will cost £49 on subscription, and if you want to buy it outright, it will cost £1,500 which is in the ballpark of a fully installed fixed home charger. it's going to cost me a bit to carry around. batteries are not lightweight, are they? how much does that unit weigh? this weighsjust under 25 kilos. that's roughly about the luggage i would take on a two—week holiday and you are expecting me to carry that in my beautiful electric vehicle wherever i go. that's going to affect the efficiency of this vehicle, isn't it? not really. if you put it in context, that weighs less than 2% of this nissan leaf,