hello, my name is Tom and I’m gonna share a story of my Delta pro ultra three batteries home smart panel two how it allows me to live off the grid almost 24 seven I purchased my system back in October. We have had one of the most cold winners, brutal winners in the last 30 years. I had five outages between December and February . Never at one time did my Delta pro ultra how smart penalty system ever Skipped beat and allowed me to stay warm and safe throughout that three months. Now we are going into March and just last week we had tornado warnings and giant wind storms which cause Electric to be out for 24 hours. My system was up and running again