Since each panel is 12v and the battery bank you want to charge is 12v then you need to parallel your system to keep the voltage the same.
2 solar panels in series.
A solar panel formally known as pv module is an optoelectronic device made from multiple solar cells normally wired in series here in italy the best selling panel is the 230wp 32v panel that is composed of 60 polycrystalline solar cells wired in series.
So when connecting solar panels in series always try to keep the electrical properties of the solar panels identical to get the full benefit of the solar array.
Solar panels are connected in parallel to obtain higher output current.
Say you have 2 x 100 watt solar panels and a 12v battery bank.
Now lets look at connecting solar panels in parallel.
Well to better understand the series connection let s start with some theory on the solar panel.
The latter is only valid provided that the panels connected are of the same type and power rating.
Let s look at a numerical example.
When solar panels are wired in series the voltage of the panels adds together but the amperage remains the same.
When you connect solar panels in series the total output current of the solar array is the same as the current passing through a single panel while the total output voltage is a sum of the voltage drops on each solar panel.
Connecting solar panels in series.
This is usually used with 12v set ups.
Lg s neon 2 series solar panels for home are durable high efficiency modules.
There are some major benefits to connecting solar panels in series.
So if you connect two solar panels with a rated voltage of 40 volts and a rated amperage of 5 amps in series the voltage of the series would be 80 volts while the amperage would remain at 5 amps.
The connection of multiple solar panels in parallel arises from the need to reach certain current values at the output without changing the voltage.
Stringing solar panels in series involves connecting each panel to the next in a line as illustrated in the left side of the diagram above.
The capacity of a solar panel to produce energy is measured in watts which is calculated by multiplying a solar panel s voltage by the amps of current it produces when a solar installer builds a solar energy system they need to find the right balance of voltage and amps to ensure that the system performs well.
When installing solar panels in series the voltage adds up but the current stays the same for all of the elements.
Just like a typical battery you may be familiar with solar panels have positive and negative terminals.
In fact by wiring several solar panels in series we increase the voltage keeping the same current while wiring them in parallel we increase the current keeping the same voltage.