Hi all.
I'm running a Whynter FM-45G fridge connected to 200ah of house batteries and 200w of solar. During the day, when I'm getting sun and the batteries are running a surface charge of 13.0v or more, the fridge works great. When the batteries come down to what I understand is an actual full charge of around 12.7 or so, the compressor in the fridge tries to come on, but it initially takes the voltage draw down below what it is perceiving to be <10.0v on it's LCD display (even tho my MPPT charge controller is reading no actual drop), and since it has a setting to keep from running your batteries down that cuts out at 10.0v, the compressor won't come on. When it's actually running, it shows on the display that it's about 2.5v or so less than what the charge controller is saying.
I've considered that maybe I'm running it too far a distance to my batteries and getting a voltage drop, but other than that I'm stumped (and that would be a very difficult problem to solve, as the fridge is near the rear driver wheel well and the batteries are under the passenger seat, with wiring running first to the switch panel by sliding door).
Any help would be much appreciated, thank you!
Link to fridge model: https://www.whynter.com/product/fm-45cam-whynter-45-qt-portable-fridgefreezer-camouflage-edition/
Consumption chart: https://1e18z23t25kn1a9twkg87cma-wp...ontent/uploads/FM-45G-Comsumption-Chart-1.pdf
I'm running a Whynter FM-45G fridge connected to 200ah of house batteries and 200w of solar. During the day, when I'm getting sun and the batteries are running a surface charge of 13.0v or more, the fridge works great. When the batteries come down to what I understand is an actual full charge of around 12.7 or so, the compressor in the fridge tries to come on, but it initially takes the voltage draw down below what it is perceiving to be <10.0v on it's LCD display (even tho my MPPT charge controller is reading no actual drop), and since it has a setting to keep from running your batteries down that cuts out at 10.0v, the compressor won't come on. When it's actually running, it shows on the display that it's about 2.5v or so less than what the charge controller is saying.
I've considered that maybe I'm running it too far a distance to my batteries and getting a voltage drop, but other than that I'm stumped (and that would be a very difficult problem to solve, as the fridge is near the rear driver wheel well and the batteries are under the passenger seat, with wiring running first to the switch panel by sliding door).
Any help would be much appreciated, thank you!
Link to fridge model: https://www.whynter.com/product/fm-45cam-whynter-45-qt-portable-fridgefreezer-camouflage-edition/
Consumption chart: https://1e18z23t25kn1a9twkg87cma-wp...ontent/uploads/FM-45G-Comsumption-Chart-1.pdf