Shandong Qianheng Electronic Technology Co., Ltd. was established in 2015, mainly engaged in pure electric vehicle BMS, household energy storage BMS, mobile energy storage BMS, electric bicycle BMS, power tool BMS and other application scenarios BMS. At the same time, the company is also engaged in the development and sales of products related to energy storage systems, such as household energy storage main control board, IoT board, USB/TypeC charging module, Bluetooth module, Internet cloud platform and so on. Around the above core technologies, the company has developed a series of household energy storage systems and mobile energy storage systems that can better and faster meet the customized needs of customers and provide customers with more high-quality products.The company specializes in R & D, production, sales and post-maintenance of BMS products and related BMS products. Around the power battery, provide core services and core technology, solve customers' concerns about battery and BMS, and provide customers with the most convenient and safe solution.All products have the following characteristics: over-temperature, over-current, over-voltage, short-circuit protection; CAN/485/IIC/Wifi/Lora/4G/2G/ Bluetooth various communication interface schemes are complete; all series of products are based on Extended Kalman Filter (EKF) SoC/SoH estimation algorithm, accurate to the SOC/SOH/R of each cell for estimation, estimation accuracy <4%. The unique full-time equalization algorithm maximizes the effectiveness of passive equalization and ensures cell consistency; all products have undergone strict testing and related certification to ensure the stability of the system.