| Table of Contents |
|---|
Parts
Sonoff DC uController
...
Small Pure Sine Inverter (300w - size depends on fridge)
Diagram
Wiring using Sonoff SV
The trace is 2 mm wide. By assuming the PCB trace thickness is 1 oz/ft^2 you can calculate the current: 2A
If you are using more than 2A be sure to put more solder on the solder traces.
Wiring using Shelly 1 Plus
The Shelly 1 Plus with the Shelly Plus Addon should be able to handle the power requirements.
See Shelly 1 Plus
To be continued.... 
Fridge Specifications
...
In reality, it should only run 8 hours out of the day which should reduce the daily power consumption to about 500w or 42 Ah.
This would give me a run time of roughly 5 days with no other loads on the system.
Measurements
There is something wrong with this fridge.... Not sure if this is a result of limited ventilation or not...
References
| Reference | URL |
|---|---|
| Tasmota Sonoff SV Details | https://tasmota.github.io/docs/devices/Sonoff-SV/ |