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BYD's latest EVs can get close to full charge in just 12 minutes (arstechnica.com)

submitted 1 day ago by Powderhorn@beehaw.org to c/technology@beehaw.org

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China’s BYD will aim to take on Porsche and BMW in the European luxury car market with a premium electric vehicle that can be charged in just five minutes.

BYD, which overtook Tesla as the world’s largest EV maker last year, first demonstrated its “flash charging” technology, which enables an EV to be charged almost as quickly as filling a car with petrol, a year ago.

The Z9GT model, part of the premium Denza brand, can be 70 percent charged in five minutes and be almost full in 12 minutes, even in temperatures as low as -30° C.

The vehicle has a range of up to 800 km and will be launched in Europe next month and in the UK in the summer. Pricing is yet to be revealed.

BYD’s international chief Stella Li said the Z9GT marked an important milestone as it began the global rollout of flash charging.

The Chinese carmaker has aggressively expanded in the UK and Europe with affordable EVs and plug-in hybrids as sales in the home market have come under pressure from a government crackdown on pricing competition.

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[–] ByteSorcerer@beehaw.org 3 points 1 day ago

The total voltage or amperage of the battery pack does not mean anything for the battery cells. You can put more cells in series and get a higher voltage at lower current, or more in parallel and get a higher current at a lower voltage. But all individual cells will run at the same voltage in either configuration (iirc between 3 and 4V), and the current per cell will also be the same for a given load regardless of the situation.

The main thing a higher battery pack voltage accomplishes is that the cables connected to the battery don't need to be as thick, as the required thickness of a cable depends only on current, not voltage.