I bought three batteries and the 6.5 kw inverter. It seems like a decent product but there is no support. The instructions were not even for what I bought. I’ve called and emailed but no one there to answer the phone. Mail box is full also.I would consider buying from someone else. Before you buy anything, call first to see if anyone even answers.Update….. after I was able to contact them, they were very helpful. They answered all of my questions. Turns out, one of my batteries is bad. They provided a return shipping label and I should get a replacement battery in a couple of weeks.All in all, I changed my stars from two to five based on the support after talking with them.