CATL says Shenxing 3.0 can recharge 10–80% in 3 minutes 44 seconds

EV battery news usually hides behind lab jargon. This one doesn’t. CATL says its new Shenxing 3.0 pack can go from 10% to 80% in 3 minutes 44 seconds, which is the kind of number that makes the whole “charging takes too long” argument look a lot shakier. The reason this matters is simple — if an affordable LFP battery can really add useful range in under 4 minutes, EV convenience changes more from charging speed than from squeezing out another 50 miles of range. That’s the claim CATL put on stage at its April 21 Tech Day in China. (carnewschina.com) ### What is Shenxing 3.0, exactly? It’s CATL’s third-generation Shenxing battery, built on lithium iron phosphate chemistry. LFP matters because it’s usually cheaper, safer, and more durable than nickel-rich chemistries, but it has not been the king of extreme fast charging. CATL’s whole pitch is that Shenxing 3.0 closes that gap without giving up the usual LFP advantages. (carnewschina.com) ### What did CATL actually claim? The company’s demo numbers were very specific: 10% to 35% in 1 minute, 10% to 80% in 3 minutes 44 seconds, and 10% to 98% in 6 minutes 27 seconds. CATL also said the pack could go from 20% to 98% in 9 minutes at -30°C, which is arguably the more interesting number because cold weather is where fast-charging promises usually fall apart. (carnewschina.com) ### Why is the cold-weather part such a big deal? Because cold batteries are stubborn. Charging slows down to protect the cells, and that’s especially true for LFP packs. CATL says Shenxing 3.0 uses self-heating and lower internal resistance to get around that bottleneck. Basically, the battery is trying to warm itself into the sweet spot fast enough that the charger can keep pouring power in. (carnewschina.com) ### What’s the trick under the hood? The headline technical detail is internal resistance — CATL says 0.25 milliohms, about 50% below the industry average for this kind of ultra-fast-charging battery. Lower resistance means less wasted energy as heat and (carnewschina.com)less heat. (carnewschina.com) ### Is this better than what CATL had before? Yes, at least on paper. The original Shenxing launch in 2023 promised a 10-minute charge for 400 km of range and positioned itself as the first 4C superfast-charging LFP battery. Shenxing 3.0 is a much more aggressive claim — not just “fast enough,” but “close to gas-stop timing” fast. That’s a meaningful jump in two and a half years. (catl.com) ### How does this stack up against rivals? The obvious comparison is BYD, which has also been pushing ultra-fast charging, and Tesla, which uses CATL LFP cells in some vehicles but still depends heavily on the charging curve of the whole vehicle system. That’s the catch here — a battery demo is not the same thing as a production car. Real-world chargi(catl.com)harge, and whether the station can actually deliver the peak current the battery wants. (carnewschina.com) ### So should you believe the 3-minute number? Believe it as a demo result, not yet as a universal ownership result. CATL is the world’s biggest EV battery maker, so these claims matter. But the useful test is not one showcase session — it’s whether automakers ship vehicles that can repeat something close to this across normal temperatures, repeated cycles, and ordinary public chargers. (battery-tech.net) ### Bottom line If Shenxing 3.0 lands in real cars with anything close to these numbers, the EV conversation shifts. Range anxiety stops being the main fight. Charging-time anxiety becomes a much smaller one. (carnewschina.com)