60A MPPT Solar Charge Controller 12V 24V 36V 48V LCD Display Battery Intelligent Regulator Max 100V Input Dual USB for Lead-Acid/Lithium

I gave this a 5 star rating because it is a decent controller for the price. I've been using one for 2 years at 25 amps. It is a PWM more than MPPT. Proof is the output amperage does not exceed the input amperage. Real MPPT takes higher panel voltage in and converts it to higher amperage out to the batteries. Knowing this, there is no advantage to running the input panel voltage much above pack finish voltage unless you have a lot of line loss like too small a cable. Best performance comes if the panel voltage is just a little above the battery pack finish voltage and use this controller as a voltage regulator. Use 6 gauge cable minimum to reduce line loss. When setup correctly it makes a decent little inexpensive solar charge controller.

I didn't hook this item up before the return expired but once hooking it up it did nothing on the screen other than light up. I followed the directions made sure battery was hooked up first and the screen was completely blank after hooking up solar panels and it was still blank. No wonder this thing was so cheap there's probably nothing in it.

easy set up and easy to use

Build quality is decent for its size, easy to install when you know what you are doing. just make sure you have all the components needed to fully install your solar system. pretty decent value for money. works as i expected.

I bought one of these charge controllers for my 2000 watt solar array. I assumed it wouldn't be a true MPPT charge controller and I'm not sure it is. I have ten two hundred watt 24 volt panels and I had to wire them in parallel. I was worried about burning up wires and other equipment but did not burn anything. This controller has been able to handle the amount of power coming off of my panels. I am by no means an expert in anything electrical or solar but this charge controller has by far exceeded my expectations. I have been able to cook with a toaster oven and my batteries are usually full by 0930 on a sunny day.

Definitely not MPPT, and at this price point you definitely should not expect it to be. Compare it to similar size, spec, and price PWM controllers. There is not a lot else at this price point that will do auto sensing on all four nominal voltages. I have 12V, 24V, and 48V solar systems at various places on my land, and it is nice having one product that could be subbed in for a failed controller on any one of those systems. Yes, I did test it at all voltages and it did auto sense correctly.I would really hesitate to put 100A though this, but an appropriate salt factor for Chinese BS marketing, 30 to 40 real world amps would probably be fine.Pros:1. Very wide opening jaws to accept appropriately crimped cables. Did not measure but I am sure it would take an 8 AWG crimped connector no problem, probably a 6 AWG.2. USB power output is nice touch, means I can run an old raspberry pi to control some relays using this3. Large rear heat sink4. Decent mounting points on the outsideCons:1. Internals are loosely mounted to the housing, you can see it when screwing down terminals, lots of slop in the screw fittings versus housing2. Not anywhere close to waterproof, don't even think about mounting this where it could get wet, sweated on, etc!3. The included instruction pamphlet was _horrible_. Tiny text. Probably in the top 3 worst useless Engrish I've ever seen.4. Settings take a million button pushes to manipulate, and do not match what the pamphlet indicates at all. Cycle the low voltage cutoff too high, and it just cycles around to the bottom of the possible values, and now you are putting it back up from low to high at 0.1V per button push. And no, you cannot hold the button and let it self-increment, its you manually pushing it _every_single_time_.So yeah, completely bogus marketing calling this an MPPT. But as a PWM controller it is not bad, not great.

Really easy to install and works well.

I bought this thinking it would at the very least not harm my battery. But not only did it ruin my pack but this product was a waste of money!!! It doesn't even put out .5 amp it's literally only putting out .25-.27 amps but the screen says it's putting out 7-8 amps. I'm using two 250watt 36v 8amp panels and it's wasting most of the energy. Volts also show incorrect. What good is this if even my inverter put out 1 whole amp running a couple of fans. The description says not a true mppt but come on this is ridiculous. For $50 I expect the thing to at least be useful.