美国采购需求：电池管理系统、BMS电池、BMS模块、锂BMS、BMS锂电池、Lifepo4 BMS

I'm reaching out to clarify the services included in the package we discussed. It's important for us to understand whether cleaning and maintenance of the panels are part of the ongoing support you provide. This aspect is crucial for our overall operations and ensuring long-term efficiency with the products. Additionally, if maintenance and cleaning are included, could you please elaborate on the specifics of those services? For instance, how often will these services be performed, and what exactly do they cover? This info will help us in planning our budget and operational schedules more effectively. Looking forward to your response!