How long would it take to charge the car? I asked ChatGPT4 and got this answer:<p>It would take approximately 2.5 days to fully charge a Tesla Model 3, which has a 50 kWh battery, using a 4,000-watt solar panel array under optimal conditions (assuming the solar panels operate at their maximum output for 5 hours per day). Keep in mind this is a theoretical estimate and real-world factors could affect the actual charging time.