There are quite a few variables in play. First, you need to calculate the wattage of your satellite receiver (you didn’t give any info on it). Then you have to calculate the wattage of you television (you also didn’t give any info on that). Once you determine your wattage needs, you need to add some surge capacity for initial start-up and that will dictate the size of the inverter you need. Now using that information, you can size the wire and outlet appropriately for the current draw between your power source and the outlet. Now let’s talk about power; what size/type of battery and how many are there? This will guide you on power capacity available from the battery/batteries. The Amp Hour rating of the battery along with the amp draw (load) of EVERYTHING running off 12v in the camper or will at some point need 12v power (tv, sat receiver, lights, water pump, slideout, power awning, refrigerator controls, thermostat, water heater controls, smoke detector, CO detector, gas detector, radio, etc.) will determine how long you can power everything before recharging. Batteries should never be discharged fully, or even below 50% capacity. Do you have a generator? Do you have a plan B if the battery is drawn down too far? I am not trying to be doom and gloom, but it is all a bit more complicated that what size inverter do I need.
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Rob & Amy
2019 Passport 240BH SL (for sale)
2024 Cougar 29BHL (Taking delivery 5/11/24)
2022 Ford F250 7.3L Godzilla Crew Cab FX4
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