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this post was submitted on 15 Aug 2023
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This is why I want replaceable batteries in small EVs like bikes and such, too.
And why I have thought for a while that it would be nice to have maybe 30% or so of electric car batteries be replacable with a moderately large rack in the "frunk" or trunk. But that's just me.
Most of the ebikes and motor scooters I've seen have removable batteries. Gogoro in India even has a battery swapping network for their scooters.
Gogoro's existence is kinda bittersweet, it shows that it's possible, but that companies aren't willing to standardize and cooperate to make it the status quo and actually possible to build swap stations for globally, of even across just Europe.
Ideally I'd want to see a plan where an e-bike or electric kickscooter takes one or two, and motorcycles take a few more. Idk if you could make batteries in that form-factor and put 12 or so into a car to gain enough miles to make a difference. Perhaps eventually, if we get the energy density gains we're hoping for.
Car-wise, I have no expectation that the industry will shift towards low weight and drag like Aptera is pushing for, so I don't expect efficiency gains that way.
This isn't a replacement, but I have said for years now that someone needs to market a rentable tow-behind or rooftop battery sort of like U-Hauls for extra capacity needed for longer trips.
People have tried it. The extra drag of a trailer or roof box consumes most of the extra energy that they carry.