南非采购需求：电池管理系统，BMS电池，BMS模块，锂BMS，BMS锂电池，适用于Lifepo4的BMS

We are currently in the market for a smart Battery Management System (BMS) with specific features to support our project requirements. We are looking for a system that operates at 12V with a configuration range of 4s to 24s, ensuring reliable performance at a 200A capacity. Additionally, the BMS should support CAN and RS485 communication protocols and incorporate active balancing to optimize battery longevity and efficiency. For our application, we need the BMS to handle nominal voltages of 3.7V with a peak of 4.2V, specifically designed for NMC cells in the 21700 format. We plan to order a substantial volume of 3000 units, so please provide details regarding pricing, lead times, and any relevant specifications or documentation. Your prompt response will be greatly appreciated.