So my battery lasted <24hrs in my dry run, with the low battery threshold setting. Voltage reading on the cooler is accurate except when the cooler is running. When I checked on it this morning, the cooler would turn on for a few seconds, and voltage reading would drop below the low setting and turn off.
One caveat is that my garage is hot, so I included the garage temp...
(Ophie is the vehicle’s battery voltage)View attachment 129491
41?
We drinking beer like the Brits?