[Upgraded] 30A Solar Charge Controller, 12V/ 24V Solar Panel Regulator with Adjustable LCD Display Dual USB Port Timer Setting PWM Auto Parameter

works great. have about 5 panels, 230 watts, maybe about 15amps at the most. I like the Volts display. I was using an multi-meter to keep checking voltage. Now I can just look over and see the battery Voltage.

charge good have. a visible diaplay design is good dont ocupate to much space

It works, works great but the directions or the tiny little instructions that come with it are worthless and not in order. You can figure it out yourself better. The voltages don't match with my Fluke VOM Meter but not that far off. I have it set up with 2 each 100 watt solar panels, 2 each 180 amp deep cycle batteries in a 12 volt parallel and charge 2 each 1000 watt solar generators, the shut down low voltage is 10.7 and 14.4 at high. It doesn't like to do both solar input to batteries and output to load at the same time causing it to jump around between low and high limit volts but you can set it to do each one separately where it works great. The 2 USB's work well and put out 2 volts. It works just as good as the $200 ones except it's sensitive , for the price it's well worth it.

Sorry but this controller misses the mark. It claims to be a MPPT, but is actually just a PWM. Firstly, if it were a true MPPT, it could put out more current than is coming in from the solar panel. All I ever see is an amount below maximum panel output. I use a 100 watt panel with an MPPT of 19.5 volts and 5.1 amps. Under full sun, I've tested the panel with a 4 ohm load resistor and the resistor gets VERY hot, so the panel can perform.Secondly, the instructions are gibberish. Even by holding the menu button down for much longer than 3 seconds, I can never get it into the setting mode. I have 3 menu items on my unit that don't show up in the instructions. What does 61 mean? 200? FF? I scoured the internet for updated instructions but never found any. I'm all for product improvement, but why not just include a link for the latest?Lastly, the area behind the connection screws runs very hot, even at my modest level of loading. A slightly different mounting method could have the hot parts connected to the back, this giving more heat sink area.

Arrived in perfect condition and in great time and a great value for the money

Installed on Navigation desk for recharge phones

Really hard to figure out how to use these. The "manual" isn't really clear. Need to do more testing. Had it shutting down the input source when the battery was pulling an amp to 1.5 amps of charge.

Works great hooked to a 100 watt panel and 100ah lithium battery