Paul asked in EnvironmentGreen Living · 1 month ago

solar panel setup question to transport energy from external source to the battery?

so I have 2 x 100w panels to a controller

the controller has a 12v battery and the load.

I would like to know a way to use a portable powerbank or something that I can topup the 12v battery connected to the controller

I wouldnt want to disconnect the battery from the circuit or anything.

is there anything out there that would do this and how to connect it to the current setup

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