Got this unit. found out I have to spend another $500 just to give out the registration details. 100% BS. I have a Chinese MPPT charger that has no problems with the built-in web server. Support is on the phone but get ready to hear a lot of emails, emails to me. I like, why am I writing you a letter, I'm on the phone with you, right, meow? This device also does not show the battery charge? kinda sucks for the price and the company just wants to keep milking you for money.