The BYD Battery-Box Premium LVL is a lithium iron phosphate (LFP) battery for use with an external inverter. Thanks to its control and communication port (BMU), the Battery-Box Premium LVL scales to meet the project requirements, no matter how large they may be. Start with Battery-Box Premium LVL15.4 (15.4 kWh) and extend anytime to 983 kWh using parallel interconnection of up to 64 batteries. Two LVL batteries can be stacked on top of each other.