The Bluetti B80P Portable Power Station Expansion Battery is equipped with a LiFePO4 battery with a capacity of 806 Wh. When you want to increase the capacity of your Bluetti AC60P Power Station, it is possible to use this Bluetti B80P Portable Power Station in combination with AC60P Power Station. The capacity can be expanded to 2015Wh with 2x B80P Power Stations.