An RV's self-sufficiency, or ability to boondock, typically lasts around 2 to 7 days depending on various factors. The fresh water supply, usually 40 to 100 gallons, can be a limiting factor, often running out in 2 to 5 days with conservative use. The RV's batteries, essential for power, may last 2 to 4 days, but solar panels or a generator can extend this. Propane, used for cooking and heating, can last around a week with careful usage. Waste storage usually necessitates emptying within the same timeframe as water depletion. Finally, the availability of food and essential supplies will also determine how long one can remain self-sufficient.