On the other hand if our two solar panels have both different wattage and different voltage then parallel connection is not possible since the panel with the lowest voltage would behave like a load and would begin to absorb current instead of producing it with the.
Connecting solar panels to charge controller.
Solar panels connected to multiple charge controllers strings to multiple charge controllers and one battery.
If we have two solar panels with the same voltage but different wattage there is no problem.
The rule of thumb when connecting solar panels directly to a battery is never connect more than c 10 watts where c is the capacity of your battery.
This is why you can t connect your solar panel directly to your battery.
Also i have doubt on ratings of panel charge controller and battery too.
Does this arc spark is expected is this because of some capacitor present inside the mppt charge controller.
This setup is ideal if you have multiple solar panels that do not have the same rating.
For example a 110ah battery should never be connected to a panel more than 11w without a solar controller and if you are using a solar controller you do not need a blocking diode.
Wiring the battery to the charge controller.
They can be wired in parallel.
Connecting solar panels to charge controller.
When i connect my battery terminals to the mppt charge controller i am observing an arc immediately and due to which i am afraid to connect.
When the battery is full the charge controller will stop delivering energy to the battery.
This is necessary because the current produced by the sun my vary depending on the intensity of the sunshine.
In this example there are two strings or arrays of solar panels that go to every charge controller.
To connect the rv solar system you would have to run a second set of cables from its charge controller directly to the terminals of the battery you want to charge.
Basic solar panel set up.
Connecting in series means joining the positive terminal of a solar panel to the negative terminal of the next solar panel until eventually you are left with one free positive and one free negative terminal of the array which are to be connected to the input either of the inverter in case of a grid tied system without a battery backup or the charge controller in case of a grid tied system.
The charge controller also senses if the battery is full.
So the rv solar system now has two sets of cables one to its own battery and another set to the battery you want to charge.
Solar panel charge controller wiring intro solar panel charge controller wiring diagram and step by step guide for off grid solar power system wiring.