[Jca3]

Where we live we don't have the option of power in the national forest campgrounds. We do a lot of dry camping and still have our 2 original batteries that came with the trailer. We read at night with lights and always use our pump. Our trouble is water storage issues not whether or not we run out of power. We live pretty much as at home, just without microwave and TV. We don't have a generator or solar power and haven't needed it.
In the days of only 1 battery we could do 3 days if we bought a new battery every 2 years, but these two have worked really well for us.