The Growatt Hope 5.5L-A1 is a 5.5 kWh (51.2V 100Ah) LiFePO4 Lithium Battery designed for residential and commercial solar storage, offering >6,000 cycles and 93% depth of discharge (DoD). It features modular, rack-mounted design, allowing up to 12 units in parallel (66 kWh total) and is compatible with Growatt 48V inverters.