Hydrogen cars are starting to looking good
(archive.vn)
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You can do the same with electricity, it just always ends up being easier to just quick charge it.
So for efficiency sake, charging a car will always be better than replaceable batteries? I'd just like a solution to electric cars two main issues:
Charging time
Range as you can have Jerry cans, you can't top up an electric unless at a designated spot.
There is the hidden third of when they get in an accident, catch fire and you gotta dunk them in a pond to wait for it to stop without the foam to put it out but that's a known danger.
There's a a lot of performance related hardware that needs to be connected to the battery cells, or rather integrated into them. There is nearly nothing like that for hydrogen, just plug and play with more fuel.
I just know they tried it then threw in the towel on it a couple of times.
You can charge a battery to 80% pretty quickly, that last 20% takes forever. Perhaps it's best to just add 20% extra capacity then tell the customer it's at "100%" at 80%.
"A SuperCharging station will get standard Tesla batteries to 80% in around 15 minutes."