Solar Generation Beat the Electric Company With Your Own Homemade Solar Power

My brother lives in ashville Nc called me about a small back up system for his house mainly a 40w water purafyer. I recomended the powerhub 1800. The problem we ran into was batterie size to fit the box niether XANTREX or private vendors had this posted. they need to have this info clear. check out my vids and maybe leave your responce there CHEERS WINDY NC