With 10 Years Warranty, CATL Battery Cells, 6000 cycles @ 80% DoD. Sunpal 48V Lithium Battery Range 50Ah 100Ah 150Ah 200Ah. Overall, Sunpal's 48V Lithium Iron Phosphate Battery Storage System appears to be a robust and versatile solution for solar energy storage applications. Its advanced technology, modular design, and long warranty make it a compelling choice for both residential and commercial users looking to maximize their solar energy utilization and achieve energy independence.