The 7-in-1 Rechargeable Solar Stationhas 2 output plugs; one for solar recharging and the other for battery recharging. The battery charging station can bring your selected unit to full power in about 5 seconds and the solar recharging station fully recharges in approximately 2 minutes. The run time is approximately 50-80 seconds. The 7 in1 Solar Rechargeable Solar Transformers allows the user to experience energy that can be recharged and stored in a power source and learn its principles and knowledge through assembly. Enjoy five different vehicles: Solar Car, Concept Car, Bulldozer, Dump Truck, and Concept Racer.