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 looking to gather more detailed information about your solar panel repair services. Specifically, I'd like to understand the types of repairs you offer, including any diagnostic procedures you use to assess panel issues. It would be great to know about the typical turnaround times for repairs and whether you provide any warranty or guarantees on your work. Additionally, I'm interested in understanding your pricing structure. Are there fixed rates for certain repairs, or do you offer quotes based on the specific issues found? If possible, could you also provide details about the qualifications of your technicians and any relevant certifications they hold? This info will help me make an informed decision about moving forward with our repair needs. Thanks!