What brand of battery is used in the surf electric car?

I am an electric vehicle engineer from Wuxi Epson. At present, the electric vehicles with good quality and sales performance on the market are: A: Wuxi has: Beijing Xinri Manufacturing Co., Ltd., Wuxi Shengbao Electric Vehicle Manufacturing Co., Ltd., Oupai, Wuxi Dongshi Yadea Technology Co., Ltd., Wuxi Tianjue Locomotive Technology Co., Ltd., Jiangsu Eidson Locomotive Manufacturing Co., Ltd., Bidewen Electric Vehicle Manufacturing Co., Ltd., Jiangsu New Century Locomotive Technology Co., Ltd. and Wuxi Epson Electric Vehicle Co., Ltd.; Changzhou has: Changzhou Aosi Electric Vehicle Co., Ltd., Changzhou Luneng Electric Vehicle Development Co., Ltd., Changzhou Jade Bird Electric Vehicle Manufacturing Co., Ltd., Changzhou Hongdu Electric Vehicle Co., Ltd., Changzhou Supai Cycling Electric Vehicle Co., Ltd.; Tianjin has: Tianjin Gefei Invincible Electric Vehicle Co., Ltd., Tianjin Taifengniao Electric Vehicle Co., Ltd., Tianjin Yilaida Electric Vehicle Co., Ltd., Tianjin Talang Electric Vehicle Co., Ltd. and Tianjin Celebrity Vehicle Co., Ltd.; Others include: Shanghai Tong Lingzhi Electric Vehicle Co., Ltd. True Love, Shanghai Sundiro Electric Vehicle Co., Ltd. Paile, Shanghai Chituma Electric Vehicle Co., Ltd., Nanjing Continental Pigeon High-tech Co., Ltd., Suzhou Xiaolingyang Electric Vehicle Co., Ltd. Tengling, Shandong Ingrid Electric Vehicle Co., Ltd. The batteries mainly include Zhejiang Changxing Tianneng International Group, Zhejiang Wei Chao Power Supply Co., Ltd., Jiangsu Deng Shuang Group, HSBC Power Supply Co., Ltd., Leading, Shengbao, Changfu, Fengneng and Zhenya. The main battery manufacturers in China are concentrated in Changxing County, Zhejiang Province. Like Panasonic, it is actually an OEM. There are also great risks for consumers about the special batteries for electric vehicles, because electric vehicle manufacturers generally do not produce batteries. Even if there are, at most 2200 electric vehicle manufacturers produce their own batteries, which are generally only commissioned. Quality and after-sales are also mixed. However, I suggest using Tianneng and Wei Chao directly. Because I have trusted them for five years.