[fotajoye]

Newb question, in the video below Damien Maguiare demonstrates how you can charge a Prius Gen 2 battery using it's Inverter/Converter single box solution. Since this can be done, why for example does the Nissan Leaf come with a separate battery charger? Why not just rely on the Inverter/Convert in it's pancake stack?

Prius Inverter Battery Charger Part 1

 

[fotajoye]

Let's think about this. The standard currently is to have a costly EVSE that interfaces an on-board ac charger in the car with the AC power line, usually in a garage. And, the standard includes as an option a quick charge port that connects directly to the battery to allow DC charging directly from an external DC charger at a quick charge station.
It's time to rethink these processes. Why carry an on-board ac charger around as an extra cost and extra weight in the car when you have external DC chargers available? Why not remove the AC Charger and install it to the AC line in the garage so it will charge directly to the quick charge port?
It's time to shift gears and think making the current processes more efficient,less convoluted and less costly, i.e., removing the ac charger to the garage, dumping the lead acid battery for a LFP replacement and requiring all U.S. EVs to standardize on the CCS standard instead of the Japanese or Teslarese standard.