If it is more convenient to convert DC to DC, check the DC input voltage and current required by the laptop from the laptop adapter. For example, this requires 19.5V DC input and 4.62A battery boards and design the string of battery boards in parallel to meet the voltage and current requirements. Install the battery panel at the best acceptance angle and connect the cable and ground wire from the terminal box on the back of the battery panel to the laptop's power cord. If you want to use a power adapter, it will be more. embarrassing. Use an inverter to convert photovoltaic exchange DC Turn.
It seems that there are now ready-made outdoor solar power systems available, which are very convenient. Let's see them.