I had one in my cart today but backed out due to poor customer service reviews online. So I decided to call them to ask about the warranty and moved from caller 20 to caller 19 after 25 minutes.
Battery Hookup, look at reviews : 50/50
Renogy, well it is Renogy and they HAVE a rep and it isn't good. Lots of PAID HYPE and Promo's BUT it IS Renogy, search reviews, not sales pitches.