Money saver
I bought this panel to help keep a charge on my batteries for my R.V. I have a 24 foot self contained camp trailer. I have two 12v batteries in a circuit I use for power. I took my trailer up for our 4th of July camp-out, we stayed 4 days. I brought along a gas pwered generator that I usually use to re-charge my batteries for the trailer. This trip I used the Go Power Duralite Solar Charger Module 20W each day and did not need to turn my gernerator on at all. With gasoline at $4.05 a gallon that week, I saved 7 gallons ($28.35) by not turning on my generator. Soon this solar panel will have paid for itself.
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