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Expanding Portable Solar Panel with Digital Solar Controller

Question:

I was wondering if I purchase a 90w portable unit and I find it is not enough can I add another 90w unit in series or is there something else that I would need to do?

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Expert Reply:

Yes, there is room for expansion. The Go Power Portable Solar Panel with Digital Solar Controller, # 34282729 has a 90 watt solar panel that puts out a max of 4.4 amps but the included solar controller can accept an input up to 10 amps. So you can add an additional panel while still using the same controller.

However, be aware that you can use more than one controller too. For example, one solar panel or group of panels, connected to a solar controller can feed a charge to a battery bank while another similar arrangement can be be attached to the same battery bank. Each controller continuously reads the voltage of the battery bank it is connected to and adjusts the charging profile as needed from the solar panels that it controls.

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Michael R

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