1.Shipping cost and delivery period? In order for you to get the accurate shipping cost, please tell us the quantity you need and the delivery address; Usually delivery within 15-30 days, but it may change according to the quantity or other situations; Sea freight will be cheaper but it takes 40-55 days, if you are not in a hurry, we suggest sea freight. 2.Is the price expensive? We sell to you at ex-factory price so that you can get maximum profit when selling. Please contact us for the latest price and more favorable policies. 3.What is the quality of the battery? This 51.2V 100Ah LifePO4 battery pack comes with real A-grade batteries with guaranteed quality, reducing expensive after-sales work. 4. How about the warranty? We provide 5 years warranty for all lithium iron phosphate batteries. If the product has quality problems during use, the parts will be replaced free of charge. Our company will replace any defective product for free. 5. Can you send me the name or brand of the inverter that works with the battery? Yes, the brand names of inverters that are compatible with our batteries are attached here as follows:Compatible inverters SMA Solar, Studer Innotec, Ginlong, Axpert-KING, SRNE, Goodwe, Victron, Sofar, DEYE, Growatt, AFARE, MEGAREVO, TBB POWER, MUST, Luxpower, Felicity. You can also tell us your inverter parameters, we can help you write battery management program to adapt your inverter. 6.How many kinds of solar batteries do you sell in your factory? We have wall-mounted (51.2V 100ah) + stackable flat batteries (each 51.2V 100ah = 5.12kwh, stackable batteries can be stacked with 5 flat batteries, you can get 5.12kwh*5pcs= 25.6kwh) + cabinet batteries (each 51.2V 100ah = 5.12kwh, the quantity is increased according to your demand). 7. Who are we? We are headquartered in Fujian, China and have been selling to customers in more than 160 countries and regions around the world since 1986, with a total of more than 700 people in our factory. 8. How can we guarantee quality? Our manufacturing process is certified under ISO9001 Quality Management, ISO14001 Environmental Management and OHSAS18001 Occupational Health Management System. Before mass production, we will produce samples for confirmation, process QC for quality control during production, and final inspection before shipment. 9.What can you buy from us? Home energy storage batteries, home stacked energy storage batteries, home wall-mounted energy storage batteries, home rack-mounted energy storage batteries, industrial and commercial storage battery cabinets, industrial and commercial container storage batteries and other energy storage battery related products. 10.Why do you want to buy from us instead of other suppliers? Fujian Huaxiang Power Technology Co., Ltd (formerly Quanzhou Huaqiao Battery Co., Ltd) was founded in 1986. It is a large-scale enterprise specializing in R&D, production and sales of lithium batteries. Our products have passed the UL (MH45805) and EU CE, as well as CNII (China National Information Infrastructure), China's Ministry of Electric Power, Ministry of Railways, Ministry of Radio and Television and other network access certification, and serve customers in more than 160 countries and regions around the world. 11. What services can we provide? Accepted delivery terms: FOB,CFR,CIF,EXW. Accepted payment currencies: USD, EUR, RMB. Accepted payment methods: T/T, L/C. Language: English, Chinese