I am living off grid in tiny house and wanting to upgrade my solar panels. So far my family of 6 has made it on one harbor freight 100 watt kit with two lights. I am interested in finding out how to source cheap batteries, what type of batteries are best, and general know how. If anyone can point me in the right direction I would appreciate your help. I am thinking to get another 100 watt kitt or maybe two but I am thinking that I will need a better battery..so far I am using the harbour frieght deep cycle/cell battery off the shelf.
Thanks for your help!