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

I'm interested in learning more about the solar crash units and their suitability for outdoor environments. Can you provide detailed information regarding their performance when exposed to various weather conditions, such as rain or extreme temperatures? Additionally, I would like to know if there are any specific precautions or mounting requirements to ensure optimal performance when used outside. Furthermore, it would be helpful if you could share insights on the durability and longevity of these units under outdoor use, as well as any maintenance considerations I should be aware of. Are there any guarantees or warranties offered that address outdoor usage? All this info is essential for making an informed decision, so your prompt response would be greatly appreciated.