Our next car is going to be electric and the biggest decision is how much battery is enough. My daily commute is only 20 km in each direction so i technically only need a range of 50km for about 95% of my driving, but occasionally would like to take a day trip without having to stop and charge. Carrying all that battery for 5% of my trips seems like a big waste of energy. Something like a trailer battery pack seems like the perfect solution to electric car range issues doesnt it? It is a pity the Tesla X is the only el car that can tow from the factory at the moment. Come on car makers - standardize connections for power packs and lets move on from range anxiety. The only disadvantages i see are the need for bigger car parks, difficulty reversing and extra set of tires to maintain but i think not carrying all that unused capacity around 95% of the time would be enough compensation.
