Can it be done

Hello
Got two 100 watts solar panel connect in parallel to increase the current.
Wondering could it be done connecting two solar controller to two different battery using the solar panel.
mrel

mrel said:

Wondering could it be done connecting two solar controller to two different battery using the solar panel.

Click to expand...

No, one SCC per panel/array.

What is your setup that you need to increase current?
Is the issue that you want to charge 2 different batteries?
You could use 1 panel and 1 controller for each battery.
You could use 2x panels and 1 controller that charges 2 batteries:


You could charge 1 battery (with 2 panels, 1 controller) and use a battery to battery charger (like Victron Orion series of charger).

Reason for using two controller since have two controller might well make use controller instead put in storage.
By connecting two controller to two 100 watts panel in parallel would be less current for each battery is that right.
mrel

mrel said:

By connecting two controller to two 100 watts panel in parallel would be less current for each battery is that right.

Click to expand...

The problem is that the 2 controllers are each able to alter the voltage and current independently and will compete with each other.
Whether its one controller or 2, the 200W will get changed into (200W / 12.8V) = 15.6A of charging current.
Why not 1 panel connected to each controller? It will gain redundancy and perhaps allow you to keep at least one panel in the sun if shade is an issue.

But at the end of the day, no, you cannot hook multiple controllers to an array.

Maybe there is more to this than you have revealed? You've not mentioned what SCC's you have or even your battery bank.

I don't recommend two controllers fed by the same panels for charging two separate batteries.
And this is fairly low power so give it a go and post the results.
Also please post the controller make-model numbers.

mrel said:

Wondering could it be done connecting two solar controller to two different battery using the solar panel.

Click to expand...

I don't know why you would need to do this, unless one battery is like a start battery and the other is your storage battery? If this is the case, there are charge controllers out there that will do this for you, as used in RVs and the like. Not implying fitness for purpose or anything, but for examples sake,


is such a device.

Maybe I am missing something, but why not just run one panel to one controller to one battery, and then do the same with the other panel, controller and battery?