波多黎各采购需求：备用电池、电池逆变器、深循环电池、逆变器电池、储能墙、太阳能电池

I'm interested in getting more details about your power wall batteries, especially the options available in different capacities. Could you provide me with pricing information for both the lower and higher capacity units? Additionally, I'd like to know more about the specifications, including energy efficiency, warranty options, and any bulk order discounts you might have. This info will help me evaluate which option would be best for our needs. Thanks!