Thor Forums

[scrubjaysnest]

We are getting by with 300 watts of solar if we can get 4 to 6 hours of full sun. The unknown pair of Grp 27's start out the night at full charge and effectively dead by morning, 12.0 volts. Our usage is two leds for 3 hours, the water pump for about two ten second flushes, and the ~1amp draw of the refrig on LP. 3 to 4 cycles of the furnace doesn't seem to have much impact.
These batteries at so called full charge show weak when checking the specific gravity.
Our plans are to replace with a pair of Exide stowaways, 105 Ah at $90 each from Tractor Supply.
We don't watch TV and parasitic current draw is reduced to a minimum. This includes pulling the in dash radio fuse since it's an additional 1/2 amp load even when off. The bedroom radio has been unplugged.