Review on Renogy Rover 40 Amp MPPT Solar Charge Controller - 12V/24V DC Input, 🌞 LCD Display, Auto Parameter Adjustable, Compatible with Gel Sealed, Flooded, and Lithium Battery Systems by Junior Rojas

Update April 16, 2019, both have worked well to date. one of them didn't load. I checked that on the battery positive terminal, some of the plastic around it has melted. It's been pretty sunny this week, 35 amps for a few hours each day. Other Renogy work fine and work under the same conditions. I thought the terminal had a bad connection because you can't really see what you're screwing in, it's too tight for an 8awg. What I did was remove the melted plastic, now attach a larger AWG wire, twist it tight, let's see what happens. Until I go back to work. I've been using it for a few months, at first I started with just one. They seem to work very well, charge the batteries, put out as much current as they can under high loads, easy to set up, screws are strong enough for the cables. The system is 12v and has seen things up to 500w. They're rated at 520 watts, so I'm happy. The sun isn't at its peak yet, so I expect to hit its peak soon. They seem to work fine together depending on how low (VDC) the battery voltage is I understand. When the voltage is over 75% or higher, one of them will output about 20A DC. around 5v If the Vdc is lower, like 60% or even lower then both are outputting the best they can get from the panels so I saw both in the middle of the morning at 20 Adc. The app is ok, in my opinion it's slow and would like to see a graph of the actual battery voltage and I'm not sure if the app reliably shows the battery's current Vdc, the same goes for the charger's LCD display. My voltmeter reading differs from the Renogy reading by about 0.15 VDC.