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Hey Pippi and all. Love your work Pippi. Have a 2006 Jayco Jay Flight 23 ft. Wanted to start my solar set up by first replacing the battery. It’s a DC24MF 12V 75Ah @ 20 hr. I want to put in 2 6V with 220Ah. Can I just switch them out with the stock controller?
Hi Gary, what you want to put in is a great upgrade from what you currently have. Are you wanting to fulltime with this set up though? You may want to add two more 6V batteries to that mix if you are living in your RV long term. The 220AH set up is probably standard for RVs now and intended for short off grid stays but certainly valuable.
When you say, can you use the same stock controller, do you mean charge controller? You can stick with the same charge controller since it only depends on what’s coming to it from the other end, which would be the solar panels. If those changed, you may need to swap out controllers.
Keep in mind, you may need to upgrade to bigger cables between your batteries and inverter now that you’re supplying more amps.
I hope this answers your question.
Gary, if indeed your talking about your “Solar Charge Controller”, I agree with the Pipster, as its surely already capable of handling whatever voltage and wattage your panels can produce and charge a 12 volt battery or batteries. I strongly agree you’re better off using true deep cycle 6 volt golf cart type batteries (two in series) versus those 12 volt so called RV/Marine batteries which I consider as semi or quasi deep cycles at best. If you were to upgrade to a so called “Smart” 3 or 4 stage battery charger (if you don’t already have) your batteries would thank you and live longer.
John T Retired Electrical Engineer
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