You can but it won’t keep your fridge cold. (Unless you use an inverter and you would need to check the amps needed by the fridge when the pump is on and see if your battery and inverter can provide that.)
That vehicle isn’t using a traditional 12v car battery for that. Also the point t is you can’t connect a car battery to a fridge and expect it to work.
Watt and volt are two different measures for electricity. Also your fridge will not work when hooked up to a car battery for many other technical reasons, including differ t voltages, and current types (AC/CD, not the band)
Voyager was initially called wefwef and was as only a WPA / web app. It’s still available as web app but also has an AppStore version which is really nice as you can keep the same interface on any device you use.
Voyager is becoming the leader, is FOSS and actively developed by a large community. I also like Arctic which is developed by a single person but is really nice as well and has iOS notifications.
Damn. I should have said: Who is this Reddit guy?