First Question, be gentle So I know I can run just about everything in the world with solar power and batteries...... House, car, tiller, even a full sized tractor, appliances etc. But what about having good batteries 25 years or so after the crash? (yes I'm a peak oil believer ) Lets say the batteries that the solar garden tiller uses http://www.freepowersys.com/suhorse.htm http://www.freepowersys.com/sunpony.htm Can you buy spare batteries and leave them dry for the next 25 years, and then have them ready to go like new. How do you guys plan on maintaining battery power over an extended period of time? .