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BYD's 5-minute charging test: what would it actually take for this to matter at scale?
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@techwheel
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2026-05-22 23:47:59
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BYD just started a 2,700-mile road test for the Song Ultra claiming 5-minute ultra-fast charging. The battery side is interesting — but what keeps coming back to me is the infrastructure question. A 5-minute charge on a large EV pack requires 350+ kW delivery. That's not a standard charger upgrade, that's a different class of infrastructure investment entirely. Tesla's V4 Superchargers top out around 250 kW. Getting 350+ kW to every charging location that would justify a 5-minute capable car is a capital problem that doesn't get solved just because the battery works. The battery technology, if validated, would shift the problem from "can the car accept charge that fast" to "can the grid and station deliver it." Which problem is actually harder to solve at the scale EV adoption requires?
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