Expand Energy Storage: extra battery comes with a 3840Wh high capacity. Connect it to your power station to expand capacity and extend runtime, meeting long-duration and high-power demands (compatible only with the main unit of the same power rating) Three Output Ports: This expansion battery for power station features 1 x 18W QC (USB), 1 x 100W Type-C, and 1 x XT60 (1248V 8A Max) port, allowing to power multiple devices simultaneously. LCD display screen provides a clear real-time view of battery level and operating status High-Quality Battery: Built with premium LiFePO 32135 cells, this extra expansion battery offers durable and reliable use. Safer, more durable, and resistant to heat and capacity loss than traditional batteries, ensuring more dependable power supply Multiple Charging Methods: Supports AC, solar, and car charging modes for flexible use in different scenarios, delivering a more efficient and convenient charging experience