China’s Contemporary Amperex Technology (CATL) has introduced swappable EV battery technology that allows drivers to exchange batteries in under two minutes, effectively revolutionizing electric vehicle (EV) charging. The Choco-SEB system, developed by CATL, enables rapid battery replacement, offering a flexible and efficient alternative to traditional charging methods. With plans to establish 1,000 battery swap stations across 31 Chinese cities by 2025, CATL aims to make EV ownership more convenient and practical.
The Choco-SEB system is designed to support a wide range of electric vehicles, from compact city cars to larger sedans. It allows drivers to quickly swap batteries and choose the setup that matches their needs best. A single battery swap can deliver up to 373 miles of range, depending on the vehicle. The system’s adaptability is further enhanced by its availability in two sizes, catering to different car models and travel needs. Compact cars can receive up to 311 miles of range, while midsize vehicles can achieve as much as 373 miles per swap.
The battery technology uses a blend of lithium iron phosphate and nickel manganese cobalt, offering a balance of performance and safety. With an energy density of more than 160 Wh/kg and 325 Wh/L, the Choco-SEB system represents a significant advancement in battery design. The first car to launch with this technology is the Changan Oshan 520, which starts at around 166,800 yuan, or roughly $23,100. This vehicle offers a 320-mile range and has already gained significant traction, with over 1,000 units delivered and more than 15,000 orders received.
CATL is expanding its battery swap network across China, with 34 stations already operational in Chongqing and more than 50 expected by the end of the year. By the end of 2025, the company plans to have 1,000 stations across 31 cities. Each station is compact, requiring the space of just three parking spots, and can hold up to 48 swappable EV batteries. The company is collaborating with major automakers, including GAC, Chery, NIO, FAW, and BAIC, and holds nearly 29% of the global EV battery market. With the addition of swappable EV batteries, CATL is further solidifying its leadership in the industry.
Swappable EV batteries address one of the biggest challenges facing electric vehicles: long charging times. Instead of waiting 30 minutes or more, drivers can swap batteries in minutes and get back on the road with the ease of a gas-powered car. While the concept is gaining traction in Asian markets, challenges such as vehicle compatibility, automaker collaboration, infrastructure needs, and consumer acceptance remain significant in the U.S. Despite this, some U.S.-based pilots and partnerships, including Stellantis collaborating with Ample for a fleet in Spain, indicate growing interest. However, CATL’s Choco-SEB system has not yet been announced for a U.S. rollout.
CATL’s goal is to make electric vehicle ownership easier and more appealing. Swappable EV batteries give drivers the flexibility to power up without plugging in. With more stations on the way and compatibility across a wide range of cars, this system could redefine what it means to drive electric. While the technology isn’t coming to the U.S. just yet, American EV manufacturers may want to take note, as swappable battery tech could be the game-changer drivers have been waiting for.