Sunwoda to integrate 15C battery into megawatt charging ecosystem
Sunwoda is advancing its plans for extremely fast charging with megawatt charging systems (MCS). The Chinese battery manufacturer wants to build a charging ecosystem around its 15C battery, introduced in spring, which will include a total of 10,000 MCS charging stations with adjacent renewable energy infrastructure by the end of 2027.
Sunwoda's 15C battery is said to charge from ten to 97 percent in nine minutes.
Image: Sunwoda
In addition to the charging infrastructure, the company also presented further details about its 15C battery system. At room temperature, the battery is said to charge from 10 to 70 per cent in five minutes, and from 10 to 97 per cent in nine minutes. According to Sunwoda, one minute of charging should provide enough range for an additional 100 kilometres. As reported by _CN EV Post_, the manufacturer also promises a range of more than 700 kilometres — likely based on the Chinese CLTC test cycle.
The battery technology itself is not entirely new. In April 2026, Sunwoda unveiled the Xingchi Supercharge Battery 2.0. The LFP pack boasted an energy content of 98.8 kWh and a voltage of 844.8 volts. With a maximum charging current of 1,800 amperes, this theoretically results in a peak charging power of just over 1.5 MW.
The 15C rating advertised by Sunwoda refers to peak performance rather than the entire charging process. If a 98.8 kWh battery were continuously charged at 15C, it would theoretically be fully charged in four minutes. In contrast, the charging cycle from five to 95 per cent in nine minutes, mentioned in spring, corresponds to an average C-rate of around 6.7 — still a very high value for such a large charging range.
The high charging speed is also said to be largely maintained at low temperatures. At minus 20 degrees Celsius, Sunwoda specifies a duration of 15 minutes for charging from ten to 97 per cent. Additionally, the system is said to meet the requirements for a warranty of ten years or 300,000 kilometres. For non-commercial vehicles, the number of ultra-fast charging cycles is not expected to be limited. During the April presentation, Sunwoda stated that the Xingchi Supercharge Battery 2.0 had a lifespan of 1,500 cycles.
Sunwoda builds its own megawatt charging ecosystem
The more significant aspect of the current announcement, however, concerns the infrastructure. Sunwoda has introduced an open platform that connects fast-charging batteries, stationary energy storage systems, photovoltaics, megawatt charging units and liquid-cooled high-performance chargers. It is designed to support vehicles from various brands and is not limited to models equipped with Sunwoda batteries.
By the end of 2027, the fast-charging ecosystem is expected to comprise 10,000 megawatt charging stations. However, it remains unclear where these locations will be established, what investment volume Sunwoda plans to allocate, and to what extent the company will build the infrastructure itself or in partnership with others. Additionally, the first production vehicles featuring the new battery system and a start date for production have yet to be announced.
With this move, Sunwoda is stepping up its involvement in the fast-charging competition among Chinese manufacturers, which now also extends to infrastructure. In March, BYD presented its second generation of the Blade Battery alongside a 1,500 kW charging system and corresponding vehicles. By the end of August, BYD had already commissioned its 10,000th Flash-Charging Station in China, with plans to expand the network to 20,000 stations by the end of 2026.
Other Chinese manufacturers are also pushing charging power to new heights. In July, Hongqi demonstrated a battery developed in collaboration with China Automotive New Energy Battery Technology (CNET), capable of charging from ten to 70 per cent in 3:41 minutes, though no timeline for series production was provided. Dongfeng recently showcased its own fast charger with up to 1,500 kW per charging point.
In addition to charging speed, Sunwoda is also expanding battery system monitoring. The combination of “Smart Battery Cells 3.0”, an energy domain controller and an AI-based cloud platform is designed to continuously monitor battery status and detect faults early. According to the manufacturer, more than 20 types of faults can be predicted two to ten days in advance with an accuracy rate of 99.77 per cent.