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 panel directly to load.
The load terminals on most charge controllers has both.
Dc fuse box attached to the load terminals of a charge controller.
A charge controller is basically an appliance that regulates or stabilizes the voltage produced by the solar panel the direction of current and prevents overcharging.
Limited current amps rating lvd low voltage disconnect and it s connected to the battery via a mosfet fuse.
They can be wired in parallel.
The direct load can be directly powered up through solar power and a charge controller during the sunshine day time and during the shading night the dc load can be powered up using the battery.
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.
When the load exceeds what the panel can harvest the battery makes up the difference.
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.
Exceeded for minutes to hours i used to connect a 60w solar panel to my car battery every few months and let it charge to equalize it i don t recall the peak voltage but it went over 15 5 for hours.
Connecting a solar panel to a 12 volt battery is not a hard thing to do.
Wiring the battery to the charge controller.
This is necessary because the current produced by the sun my vary depending on the intensity of the sunshine.
Connecting solar panels to charge controller.
If we have two solar panels with the same voltage but different wattage there is no problem.