Boondocking or Dry Camping is when you camp in your RV without sewer, water or power connections. You should start out with a full fresh water tank and empty holding tanks. The fresh water capacity will normally not exceed your black and grey water capacity. The challenging part is maintaining battery power. If you carefully conserve power a single battery can last 2 to 3 days. If its cold and the furnace is needed this can cut you down to less than a day. There are a few options available to extend your batteries life like LED light bulbs, Solar charging systems, Generators or a Battery upgrade. LED light bulbs are 75% more efficient than incandescent bulbs. A Solar charging system will provide a charge even on a cloudy day. A Generator will allow for battery re-charging and full 110 power for air conditioning, microwave or even a plug in hair dryer. A battery upgrade could involve two 12 volt batteries wired in parallel or two 6 volt batteries wired in series. It is important to not let your battery fully discharge when boondocking because it is difficult to bring it back. I recommend charging your battery each day to maintain it. This can be done by plugging your trailer into a properly wired tow vehicle and running the engine. In a motorhome, starting the engine will charge the house battery as well. Dry camping can be a challenge, but camping off the grid can be quite rewarding.