QCells, Q.HOME Q.SAVE 5.12kWh LFP Battery Module, 2 to 4 Stack, NEMA 4X, UL9540, D5.0SX, SSPW-00001DocumentsData Sheet (Created 12/14/2023)Disclaimer: While we strive to keep our item documents updated, item documents may have been updated by our manufacturers. Please note the date the document was created - for the most up-to-date item details, please refer to the manufacturer's website.WarrantyHanwha Q Cells Q.Home Battery Module WarrantyHanwha Q Cells solar panels are backed by a 25-year product and performance warranty that guarantees at least 86% of the initial power after 25 years.