Hello donjuedo!
Thanks very much for this information. The batteries that I have looked at are Rolls (my first choice) followed by Trojan. I calculated that I will need 16 nine volt batteries. Hopefully I can live off-grid 100% with a complete solar system. I don't plan on having a lot of appliances. This will be a complete change in lifestyle and I am looking forward to it.
Have a great day!
Phil