I would like to ask you an opinion about this idea I am working on in the last period, most of all I am not completely sure about the technical feasibility of it, so any information from you is precious for me!!
The idea is very simple: in case an electric car runs out of battery in a place in which there is no charging station, I would like to have some kind of portable battery pack which I can plug into the electric car for some hours, so that it can charge it again and make it move. In order to do it I would need:
[li]A battery pack with a standard plug so that it can be capable of recharging the highest number of electric cars
[/li][li]A VAN or a pick-up in which I can load and unload the portable battery pack, so that I can leave the battery pack in charge until it comes the moment in which I need it
I sounds to me like something possible, like when a laptop PC recharge a smartphone through USB cable: it is a battery (the laptop one) recharging another one (the smartphone one). I know that electric car batteries have pretty big size and weight, so I would like to understand better how can it work and in case how many portable battery packs I can load/unload on a single VAN.
[B]If we take as example the lithium-ion battery of the Smart Electric Drive (16,7 kWh capacity) how much would weight a portable battery pack capable of recharging it? Which size could it have? How many time should it be connected to completely charge the Smart Electric Drive battery[/B]?
Please feel free to write any observation, doubt or proposal,
And most of all… thank you in advance for any help!