The FlyCart 30 will take-off if the two intelligent batteries have different levels of power, if the difference isn't too large. 

If the voltage or capacity difference is too large, the app will display, "The voltage difference or capacity difference between the two batteries is too large, making it impossible to take off."

The parameters are as follows:

• Voltage difference between two batteries: > 10 degrees: delta V ≤ 2 V; < 10 degrees: delta V ≤ 1 V

• Capacity difference between two batteries: > 10 degrees: delta soc ≤ 10%; < 10 degrees: delta soc ≤ 8%