Aux Battery Power Draw Calculator

Estimates assume a nominal 12V system and constant appliance draw across the slider settings — real-world compressor fridges, heaters and inverter loads cycle, so treat this as a planning tool, not a guarantee. "Hrs @ Full Load" is the runtime if every enabled device ran continuously and simultaneously at its set wattage. "Days of Autonomy" nets your daily load against your charging input across a realistic day/night usage pattern.