2021 T@G - Can I use built-in solar AND external suitcase solar with it's own controller?

rchawla

I have a 2021 T@G and the box on the toungue ontaining the battery is a jack to plug-in external solar. (the wires from this jack are not yet connected to the deep cycle interstate marine battery.)

I also have a hardwired PV panel on the roof with a Victron MPPT 75/10 controller. Can I use my external suitcase solar (with built-in charge controller) plugged-in to the same battery IN ADDITION to the built-in solar and charge controller?

Sharon_is_SAM

@rchawla - Yes, you can use both simultaneously. Just make sure to attach the solar port wires to the correct + and - battery terminals. Just like you can use your installed solar and 7 pin to charge the battery while towing, you can use 2 sources of solar charging. The battery doesn’t care and the controllers prevent overcharging. However, if you are using the VictronConnect, you will only see the additional charge from the suitcase via an eventual increase in battery voltage.

rchawla

Thank you @Sharon_is_SAM. That's great as the suitcase can follow the sun with a human solar minder.

Tabnero

yes, and it works well