Another company having a go at battery swapping for cars. As with a lot of things, success is unlikely to depend on technical prowess alone, but on capturing a market, funding, standardisation and a big dose of timing and luck. They comment that building a car with a huge battery bank to get range leads to a lot of waste transporting that weight most of the time when it isn't needed for short journeys where they can be charged, or swapped regularly. Their idea is that you would swap, or charge a small number of batteries frequently and load up with more for long trips in to the wilds with fewer charge, or swap stations. The seem to have thought through the dividing line between battery, car interface, mechanical, cabling, cooling system and control electronics to make it interface with as many cars and battery types as possible.