Post by emg on May 7, 2019 21:18:17 GMT
We had our rv out for the first time this past week after installing our solar setup. To be honest I was a little underwhelmed. I’ve got it setup with 2 100w panels in series and a 30A rover controller. No inverter and I’ve got it connected to the RV main power distribution box to charge the battery. Batteries are 2-100ah wet 12v battery in parallel. They are the stock ones that came with the RV and have been charged very low a couple of times before the panels were purchased. We had sun for most of the day, but there we had a bit of shade for parts of the day. Our usage was mostly in the morning and the evening which consisted of at most 3 LED lights and the water pump as well as the items the propane alarm. I would estimate a total of no more than 30 amps per day.
By 10am, the voltage would be up around 12.5 volts and show a battery charge of 80%. I checked the batteries with a multimeter and they both matched what the controller was say. When I returned later in the afternoon, it would be about the same, even though we were gone during the day and nothing with any draw was running. When I got home, before unplugging from the truck, the battery show 13.3V and 100% after being charged and connected to my truck.
Any suggestions what could be the issue? Based on my calculations, I would think the panels are sized properly. Am I wired wrong? Have my batteries gone bad(this is my first thought, but don’t want to spend that money if I don’t have to)? Is there a way to check using the BT app if I was getting a voltage draw during the day that I wasn’t expecting?
By 10am, the voltage would be up around 12.5 volts and show a battery charge of 80%. I checked the batteries with a multimeter and they both matched what the controller was say. When I returned later in the afternoon, it would be about the same, even though we were gone during the day and nothing with any draw was running. When I got home, before unplugging from the truck, the battery show 13.3V and 100% after being charged and connected to my truck.
Any suggestions what could be the issue? Based on my calculations, I would think the panels are sized properly. Am I wired wrong? Have my batteries gone bad(this is my first thought, but don’t want to spend that money if I don’t have to)? Is there a way to check using the BT app if I was getting a voltage draw during the day that I wasn’t expecting?
