This is a kit with two B750X PACE batteries and one C1800X PACE charger. B750X PACE is a high power battery with a capacity of 750 Wh and C1800X PACE is a high power battery charger with a capacity of 1800 W. Fast charging with active cooling of the battery. Equipped with built-in connectivity so you can easily monitor state of charge, runtime, location and receive wireless updates through FOTA (firmware over the air).