use magnetic connectors, so it connects well. You see apple laptop uses these magnetic charge connectors to ensure proper connector. When not properly connected, alert the user with beep sound. Also ensure, future adoptable battery technologies to old EV vehicles.
Swapping would be the best option for the EV. As a customer Upfront cost is low, maint. cost for the battery not to bother, then running cost will be also low than petrol, so would be instant hit in market.
the point that standardization strifles innovation is i think not appropriate because we can see like in smartphones charging system we have usb-c as a standardized version which all electronjc manufacturerers find it easy to adopt and it's innovating continuosly we can see from usb 2.0 to usb 3.2 Standardization also reduces wastes and forces them to use the most reliable batteries, efficient and long lasting batteries thus reducing e-waste.
Economical for fleets - rentals and Uber etc. Swapping stations should be set up at every petrol station. They can be recharged from solar and wind. So the economics of the business would be very strong.
Battery standardisation can be only be in terms of battery connectors, size and shape of battery, output voltage and amperage and not in terms of energy density or chemical composition of the battery. On the other hand fast charging degrades battery life faster.
I'm not sure what's taking an eternity for the engineers of the EVs to figure this simple thing out. Apart form the latest smartphones which have non removable batteries, all battery driven devices have battery swapping ability - be it a simple torch or a complex watch. That is more of a norm than expection for battery driven devices. What is taking a genius to apply the same concept to EVs?
The batteries you are talking about are not generally rechargeable, plus the smartphone batteries are hard to standardise as they need a flat, energy dense format that changes with the phone tech. In addition, the idea of non removable batteries actually simplifies the peripherals of any given phone, which can use USB C and the like. Having a swappable paradigm risks requiring people to bring batteries AND battery chargers along with them and once they've all run out you're back to normal charging times but for more than one capacity. In contrast simply relying on the charging along gets rid of this "peripheral accessory factor". It's the same reason methanol fuel cells for phones didn't take off.
The ideal solution could be embedding solar panels or dynamo in vehicles that cansolve the charging problems or atleast help to give little backup juice at emergencies.
