electric cars

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It is removable as part of its design. Presumably the removal equipment stabilizes the car during the process, it shouldn't be an impressive feat to maintain stability with the car stationary.

Sorry, I guess I'm referring to a "Series Hybrid".

Electric motors in hybrids generally produce more power across the band than the gas engine does.

But it's removable for replacement in cases of defective cells, not to swap it out in a quick-charge system. There's a biig difference. Over time removing and replacing that component *will* weaken it. Ultimately, the solution is to build EV charging stations in parking lots - especially large business/campus lots. People spend most of their days at work, and very few jobs require use of an employee's personal vehicle during work hours, so it's the perfect opportunity.

I used to ride one of these to the train, then folded it up to put under the seat, then rode it on to work, charged it under my desk during the day, then did the reverse commute after work.
It was great.

There is no.direct linkage in most hybrids, rather you have a generator that makes alot more juice then the battries uptake, this excess while charging the battery goes to the electric motor, if more power is needed some are set to use the current from the batteries and the motor at the same time, emptying the battery while running the gen.


My idea is nice because everything could use different quantities of batteries that are cheap to.replace if they fail.

Ok I wasn't clear on that, thought it was quick release. I don't think even with a 700 pound battery pack it would be impossible or even challenging to design a quick release mechanism with an MTBF of thousands of cycles. Compared to the other engineering challenges Tesla deals with, that's simple.

Never underestimate peoples' lack of or inability to plan ahead. It's possible that sometime in the future with 2400 volt service or some such, a 10 minute charge will be possible on an 80kWh battery pack. However I think batteries are going to shrink faster than electrical service is going to grow, and it really isn't that hard to put more than 200-300 miles on a car in a day.

You mean replacing individual cells if they go bad? Yeah, I do think there is some value to your idea. Especially if the mechanism can run very fast. There would be challenges (the cells couldn't be directly submerged in coolant, protection against fraud by people returning bad batteries whose onboard computers claim they are good, etc) but I can't picture anything insurmountable, and it would address the convenience factor.