MPPT Charge Controller 60 amp 12V/24V Auto, 60A Solar Panel Charge Regulator with Blacklight LCD Display Max 100V for Lead-Acid Sealed Gel AGM Flooded Lithium Battery

The description when I purchased this item on Feb 27, 2020 was: MPPT Solar Charge Controller, OOYCYOO 60amp Solar Panel Charging Battery Regulator 60A 12V/24V Auto Work, with LCD Display Max 100V, 780W/1560W Input for Lead-Acid Battery, with Load Timer Setting The description of this item as of Jul 4, 2021 is: OOYCYOO MPPT Charge Controller 40 amp, 12V 24V Auto 40A Solar Panel Charge Regulator, Max 100V Input with LCD Display for Lead-Acid Sealed Gel AGM Flooded Lithium Battery (MPPT-40A) The 60 amp version is no longer available for sale on this particular page. The max amp output for my 12V system that I have seen thus far was only 36 amps (in direct sunlight with no clouds). My solar panels are supposed to be able to generate 53 amps at 14V. (Which is why I purchased the 60 amp version.) The manual that came with the item is translated from Chinese and difficult to understand in English. I am not sure why I am not getting over 40 amps. The SOLAR MPPT unit I have looks identical to the pictures on this product. How do I know which version of this item I actually received?

The charge controller is pretty good. Works fine, easy to set up, decent controls. But they sell no serial adapter device that connects for phone monitoring. Their customer service was useless, and they kept showing me other charge controllers and not the serial adapter that i requested. All the other charge controllers have this Capability, but this one does not as it was determined through mountains of texting that the company doesn't make one. At least for US. This is a good controller except it doesn't have an adapter for cell phone monitoring.

I'll start with the positives - the 60A/100V version of this product is a true MPPT controller! At the price, it's the cheapest on the market and I had high hopes given the positive reviews from other customers. Now the reason for the 1-star review: The passive cooling system is not nearly enough to keep the device cool under load, so it quickly heats up as it charges and freezes up. You can reset the device by disconnecting and reconnecting the batteries then cross your fingers for the next time it crashes, but this is a multiple times a day affair. I was not even approaching the maximum amp or voltage ratings before the controller crashed and proved itself to be subpar. If you're dependent on your solar power working, please do yourself a favor and get more robust option. You might be able to add your own active cooling and make this a reliable unit, but for the time and cost, I'd say you're better off with a Renogy or MidNite charge controller.

Update for 1 June 2021: unfortunately, today I lost the controller that is pictured. Possibly due to the solar panel generating more electricity than the controller could handle. It was a quick 10 minute replacement with a spare. Overall I remain highly satisfied with these controllers and plan to continue using them in the future. SET-UP: I built 2 separate solar systems using 300watt Solar World panels, however, I made a mistake in trying to run these with simpler Pulse Width Modulation (PWM) 30amp controllers and was only harvesting half of the available power. PRO: I was pleasantly surprised that this is a true Maximum Power Point Tracking (MPPT) solar controller. I replaced the PWM controllers with these PowMr MPPTs and gained 500-700 watts in daily production. Each panel is now producing an average of 1050 watts per day versus their previous 500 watts per day. Even with 600 watts (2 x 300watt panels) of power going in, they do not get extremely hot, so the lack of active cooling does not seem to hinder power production. The controllers are easy to configure since they do not have any major features and for the roughly $100 price, this is a good deal compared to other MPPT controllers. Two USB ports are a nice extra feature. CON: as with other PowMr solar controllers, these do not tell you how many amps it creates on a daily basis, so you will have to use a separate meter such as the Bayite monitor (as show in picture #1). It comes with a Comm Port, but I have yet to find a sutaible monitor. Both Amazon sellers (PowMr and OOYCYOO) overstate the maximum handling capacity of the controllers. At 12 volts, max capacity is 720 watts and at 24 volts, max capacity is 1440 watts. Make sure to design your system with enough overhead to allow for increased wattage/amperage on really sunny or cool days, as solar panels WILL generate more power than advertised. Finally, reliability is unknown.

You can see in the picture the size of this beast, but not only that it will charge your batteries in no time even in a cloudy day and keep them charge. After several supposedly MPPT ones that I bough , none compare to this beast 100%% MPPT. Update: is a great controller but is off by 0.3 to 0.4 volts so if your bank requires to be full at 13.8 then you need to adjust the Pv off at 14 to 14.1 to be at the correct charge.

This is the second controller of this model I have purchased. The first lasted 4 years, hopefully this will last at least that. Why the 3 stars and not 5? The instructions are absolutely horrendous - they provide no real information on the set-up and I have looked through the internet and YouTube etc., nothing. It has a nice display that provides most general info you need without scrolling, but I still don’t know if it can detect the battery type (several people have made reference to this). I still do not understand what the “Load Stop Working Hours” line means. The price is reasonable but if it just had clear well written instructions, I would give it 4, possibly 5 stars. Now I cannot say anything about its efficiency or the quality of its components. The next one I buy will be one with actual meaningful instructions.

I had bought this charge controller 5 years ago and it was great then. Needed another one because I didn't have my cabin grounded and it shorted out in a lightening storm. This new one has the same features that are easy to read and understand on the back-lit display panel. The only difference is that the new model has vents on the front. It's easy to set up, but the manual doesn't have a trouble-shooting section.

Bottom line- there is no manual for the device. After multiple attempts (3X on email), I gave up on getting one from the manufacturer. I was able to figure out the proper order in setting it up, via other manuals for MPPT controllers. So, I’m not sure if I’m not doing something properly, or my unit just isn’t working. Right now, it doesn’t seem to be doing anything, other than not processing incoming solar power. Again, there’s literally no way for me to figure out what’s happening right now. At this point, I believe it’ll be best to just send it back. Sucks, because it did seem like a decent product. You’ve been warned. I believe I’ll spend a little more to get something that’s more supported. Or at least comes with a d@mn manual.

while trying esmart, and other mppt controllers, they are pretty fancy, but have failures. Until this unit, nothing worked right. Now this is a basic unit, and has not much for bells and whistles, but it works all the time, every time. I have hammered on both units and they keep on ticking. Would be nice to have the remote LCD, but for now just setup a network PTZ cam to view the screen. It has only a bulk charge, so every once in a while, i'll just bump the voltage setting to equalize for the day. I am just happy it does not act like an esmart where it needs a reset to start all the time. This unit just starts right away, even at super low voltages from the PV.

has worked very well since I installed it

Nice high quality looking unit but it failed after only 4 hours of use, so I am really unhappy with that. huge waste of my time, now I have to find another unit and my project gets delayed again.

Works as described. Fast shipping. My solar system has never been better. Instructions are not the greatest, but install is so easy that I did not even need the instructions.

Work with my of grid cabin solar system