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To charge with Solar is an effective way to charge your solar generator or portable power station. The panels are rated with effect it can charge with and labels like 100W panel
The things to consider is the open circuit Voltage, it has to high enough to get your power station to start charging or if you connect the panel to a solar regulator that charge your batteries
You can connect parallel or in serie depending on the input on the solar generator or solar regulator
Make sure that you check if a adapter is required for MC4 connectors
For example if we look at EcoFlow DELTA 2
Input Ports:
AC Charging: X-Stream Fast Charge 1200W max, 10A
AC Input Voltage: 100-120V~ 50/60Hz
Solar Charging: 11-60V 15A Max, 500W Max
Car Charging: Supports 12V/24V Battery, Default 8A
It supports 11Volt to 60 Volt, a standard solar panel delivers about 27 Volt. That means the you can connect 2 panels in serie
The Renogy 100W Solar panel delivers:
Max Power at STC: 100W
Open Circuit Voltage: 24.3V
Opitmum Operating Voltage: 20.3V
So if 4 100W panels is connected as 2 parallel and then in series
Each panels produce ca 5 Amp and in this example it will be 10 Amp and 48V as optimum.
So in theory we can get nearly max input of 480W when Max input is 500W
The advantage of using panels in series is that you don’t need so thick cables, the voltage increases but the amp stays the same.
If you buy panels with MC4 connectors then you can buy adapters for parallel connection —->
