Introduction to Battery Swapping
During my recent visit to China for the Shanghai Auto Show, exploring electric vehicle (EV) battery-swap stations was a primary objective. The notion of rapidly replacing a depleted battery with a fully charged one is undeniably appealing, especially as it significantly reduces the time compared to conventional fast-charging methods.

NIO’s Innovative Approach
Having experienced NIO’s battery swapping first-hand, I can assert that it exceeds expectations. Their innovative stations operate like car washes, where drivers can park their vehicles and have a new battery installed in about four minutes. Remarkably, NIO’s latest models can achieve this in just over two minutes. This technology not only enhances convenience but also addresses one of the major hurdles in EV adoption: extended charging times.
CATL’s Leap Forward
The battery giant CATL is making strides in this sphere, collaborating with various Chinese automakers on a groundbreaking battery swapping system that takes a mere 100 seconds—just over a minute and a half. The first fleet using CATL’s “choco-seb” battery design, notable for its unique chocolate bar-like appearance, has already hit the roads. For taxi drivers, the Changan Oshan 250, equipped with a 56 kilowatt-hour battery, offers a lifeline by providing swift battery swaps without compromising operational efficiency.
As CATL continues to expand its network of battery-swap stations, the potential for this technology within the EV space appears promising. With plans to establish 1,000 stations across China by year-end, the battery-swap model could redefine energy replenishment for electric vehicles, particularly benefiting drivers with limited access to charging infrastructure.