Winter battery test

 Winter battery test 16 Nov 23.  I cut shore power at 0700 MST.  My three LAS batteries read 13.4 before shore power was cut, after power was cut dropped to 12.3.  At 0800 read batteries they settled in at 12.4 so I turned on my solar at this time.  Note sun is about 30 degrees above horizon.   My 3 marine batteries are going on 5 years old each with 109 amps each.  Battery compartment is 52 degrees. I have 500 watts flexible solar panels glued to my roof.  Also the front AC will have shade over at least two panels throughout the day.  Since they are in parallel should only impact panels a bit.  Last summer my best drawl with clear skies in northern Texas produced just over 50 %.  This is not the best solar setup but is acceptable to me with fixed panels and a PWM solar controller.

Above is a screen shot of my phone just after system is turned on. At 0930 amps going in up to 4.7 amps below.

Above photo of rig at start and below is the sun at start.

Note today’s temperature range is 32 to 54 degrees.

Six hours in unplugged.  At 1 pm 4.7 amps coming in and batteries at 13.7.  Heater, ref still on plugged in portable freezer to Jackery.