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I probably jumped the gun on this one. After learning more I can see the mppt is the better way to go. oh well. it's just a camper. it'll do for now.

https://www.amazon.com/Inverter-2200Watt-Charger-Control-Display/dp/B07R9Y4LT6/ref=sr_1_7?crid=IULEEQO0KFMY&dchild=1&keywords=2200+watt+pure+sine+wave+inverter+giandel&qid=1594147656&sprefix=giandel+2200+watt+%2Caps%2C304&sr=8-7

I bought a Giandel 2200w pure sine inverter with solar charge controller built in. I look at everyone's posts and don't see where anyone uses anything like this. Is it a good unit? Better to have separate charge controller?

the giandel is all in one

4.2 out of 5 stars 227Reviews GIANDEL 2200W Pure Sine Wave Power Inverter 12V DC to 120V AC with 20A Solar Charge Control and Remote Control&LED Display and Dual AC Outlets &1x2.4A USB Port for RV Truck Car Solar System

I have a manual transfer switch. I do not have any problems with the AC side. its the DC side that is the issue. I see now that I need to eliminate the batteries getting charged from 2 separate chargers at the same time.

That is what I have it think.

Yes. Typical WFCO. And by parallel I meant both the Giandal charger and the WFCO chargers are both going to the same battery.

I drew a basic plan.

Camper has 120 Volt AC shore Power with a 12 volt battery charger. when plugged in it charges the battery and I am able to use the A/C, Microwave and TV. Everything else is on the 12 Volt DC side. When not plugged into shore power, I only have the battery to power lights and the water pump and...

I am looking for suggestions on integrating the existing camper wiring (12VDC with 120VAC shore power) I have 2 - 6 volt lead acid batteries and a GIANDEL 2200W Pure Sine Wave Power Inverter. 2 - 100 amp solar panels. Can I parallel the batteries to the inverter and the camper battery charger...