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solar panel controller - permanent installation

Timeking
Explorer
Explorer
The Zamp input connector is on the front of my TT. One side goes to ground the other is red wire leading to the +12V system. I would like to cut that red wire and route it to the grounded controller permanently installed inside the front pass-thru storage box (in a safe protected location). Then when I want solar power input, I'd only have to plug in the panels via a Zamp-compatible plug.

Is that OK?

Is it OK for the controller to ALWAYS be in the circuit even when no solar panel is connected?
4 REPLIES 4

Almot
Explorer III
Explorer III
Correct wiring (simplified):

Pos wire: Solar panel -> optional switch or breaker 1 -> Controller -> fuse or breaker 2 (NOT switch) -> Battery.

No, you shouldn't connect controller to panel without connecting it to battery first.

Lwiddis
Explorer II
Explorer II
โ€œThen when I want solar power input, I'd only have to plug in the panels via a Zamp-compatible plug.โ€

When wouldnโ€™t you want solar power charging your batteries through a good controller?
Winnebago 2101DS TT & 2022 Chevy Silverado 1500 LTZ Z71, WindyNation 300 watt solar-Lossigy 200 AH Lithium battery. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist. 14 yr. Army -11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad

red31
Explorer
Explorer
cut/disconnect both wires and connect both to the charge controller, find bigger wire to run from the CC to the battery. Add a plug to the panel wires with the correct polarity, plug the panel in the TT plug.

They make a controller that can talk to a smart phone (bluethooth) so you would not need to open the storage area to monitor the battery/panel.
The app is available from grape solar, the controller from homeDepot.
http://www.homedepot.com/p/Grape-Solar-40-Amp-PWM-Solar-Charge-Controller-with-Bluetooth-GS-PWM-40BT...

BFL13
Explorer II
Explorer II
Timeking wrote:
The Zamp input connector is on the front of my TT. One side goes to ground the other is red wire leading to the +12V system. I would like to cut that red wire and route it to the grounded controller permanently installed inside the front pass-thru storage box (in a safe protected location). Then when I want solar power input, I'd only have to plug in the panels via a Zamp-compatible plug.

Is that OK?

Is it OK for the controller to ALWAYS be in the circuit even when no solar panel is connected?


Yes to the last question--but not the other way around with panels and no battery. Always have the battery connected before panels are connected.

With the controller inside, it sounds like you could just ignore the existing Zamp connector, and just go controller-battery with new wires (fuse the positive wire) You could use that existing Zamp for connecting the panel wires from a portable array, and redirect its wires inside from the 12v system to the input side of your controller.
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