Basic battery charging and solar question
I have a Surveyor 245BHS with 2 6v batteries wired in series. The RV dealer told me that when I'm plugged in to charge, the trailer doesn't recognize when the batteries are fully charged and will kee...
Forum Discussion
With the OP stated loads, 2*6V will last 3-4 days without any charging before it drops to 50%. Most of this will be eaten up by fridge DC circuit in LP mode.
Being PNW, an average summer day with 100W solar could well be a "no charging" day. 6A max current turns into 0.6A when it rains, and in those parts it could rain all day. There is no remedy for that, other than 800W solar (then it would generate 6A in rain).
OEM panel with Christmas lights for battery "full-half-empty" isn't useful to tell when it's ~50%. At the very least they should get $3 multimeter and measure voltage without any loads. With solar it should be measured first thing in the morning, before solar kicks in, preferably without any loads like lights or fridge cycling.
Being PNW, an average summer day with 100W solar could well be a "no charging" day. 6A max current turns into 0.6A when it rains, and in those parts it could rain all day. There is no remedy for that, other than 800W solar (then it would generate 6A in rain).
OEM panel with Christmas lights for battery "full-half-empty" isn't useful to tell when it's ~50%. At the very least they should get $3 multimeter and measure voltage without any loads. With solar it should be measured first thing in the morning, before solar kicks in, preferably without any loads like lights or fridge cycling.
