EPEVER 40A Solar Charge Controller MPPT 12V / 24V Auto Max.PV 100V Input Negative Ground Solar Panel Charge Regulator with MT50 Remote Meter Temperature Sensor RTS & PC Communication Cable RS485

This review is for Tracer4210AN. I had thought that 24v panels would charge my 24v panels. This is incorrect. I reached out to Epever support and they informed me I must supply 34v to charge 24v batteries. Thankfully I have two of the panels and moved from parallel to series and it's charging the batteries great. Looking at the panel voltage and the battery voltage and controller parameters, I'm not certain there's ever an ideal setup without lots of lower voltage panels where one can get the perfect pairing for the least loss, however in lower light I should still be supplying enough voltage to charge - not certain on amperage, time will tell.

Very easy to use, great product

I connected this to 4 flexible monocrystalline panels rated 100 watts each. Panels wired in 2 parallel sets, then series connected the 2 pairs for open circuit voltage around 45 volts. I am using a size 8D flooded lead-acid battery with about 200 amp-hours of capacity and 12 volts. The primary load is a Xantrex 3kW sine wave inverter. I was getting 125 watts solar charging in the 4pm late afternoon sun with the panels mostly flat and two panels shaded. Controller came in a kit with the remote, which I highly recommend. I only needed the manual for a minute at first, then everything in the setup was intuitive. This seems like a rugged, well built piece of electronic hardware. I will update this review if anything goes wrong, but initial functionality looks great.

Controller is working great, easy to program and understand settings. It's a 40amp controller but have seen it peak at 45amp w/ no problems. Hooked up to 3x160w poly panels in Hawai'i, output is @ 2kwh/day, very happy with this unit. 🌴😁👍

Hace mucho tiempo que lo tengo y es expectacular muy buen producto