Renogy Solar Charge Controller Rover 40A 12V24V Auto Parameter DC Input MPPT Charge Controllers for Solar Panels Adjustable LCD for Gel Sealed Flooded Lithium Battery

The price you pay seemed high until you set it up and it just works. It took a few minutes to get the setup right but once it's done it does the job very well.

I use this a couple times a year for the last 3 years with no complaints. Works great with a pair of 48V panels to charge a 200ah SLA AGM deep cycle battery without any issues. I previously had a smaller controller that the 48v panels fried, but this handles it great and the LED screen is nice too.

I bought this Renogy 60A MPPT charge controller on April 4, 2025, and after 11 months of use I’m very happy with it. It was a great upgrade from my old Tristar 45 PWM controller and has been noticeably more efficient. My old PWM controller struggled early in the morning, near sunset, and during cloudy weather. This Renogy starts charging much sooner and handles lower-light conditions far better. It keeps my battery voltage right where it should be. I bought the 60A model even though it was more than I needed at the time because I wanted room to expand my solar setup later. No regrets there. Right now I’m using it with a 140Ah 12V LiFePO4 battery and a 350W solar panel. Installation and setup were very easy, and the menus are clear and simple to use. I haven’t used every feature yet, like data logging, but based on my experience so far, this has been an excellent purchase.

I replaced an old direct from China PWM converter with a Renogy Rover 20 amp for my camping solar rig. The improvement has been pretty remarkable. I'm really happy with the configuration, efficiency, and safety of this design. The efficiency gain going from PWM to MPPT is noticeable. More importantly for me, the ability to program the charging parameters from a laptop allowed me to use a custom lithium battery pack and get the target voltages exactly where I want them. I camp with a 70 Ah lithium pack built into a "suitcase" with the the Renogy Rover, fuse box, switches, inverter, etc. A big selector switch in the box lets me swap between my internal lithium and an external sealed lead acid batter for those times when the weather doesn't cooperate, and I need a little more juice. The Rover easily switches between "SLA" battery mode and my "USER" mode for the lithium. Best for me, the protection circuitry in the Rover shuts everything down long before voltages get anywhere near damaging my lithium if I forget to switch modes. The only knock I'd give on this controller is that the software to configure it is pretty rough around the edges. I had to reconnect and reboot frequently as it lost sync with the Rover, and the initial setup of the software isn't intuitive. Read the Fine Manual... The software is Windows only as well which is inconvenient for a Linux/Mac user. Still, after a bit of fiddling & testing (with a bench power supply standing in for solar panels over this LONG winter), it configured the Rover to the exact charging parameters I wanted for my lithium. All the settings are remembered when the controller is powered down. I'm ready to camp this summer!

I've only had it up and running for a little over an hour now under intermittent sun and clouds, but so far so good. I bought a 100A controller from another brand and it died in less than an hour which surprised me because their smaller controllers work great. In a panic to get something quickly I decided to try the Renogy 100A because I knew of the brand and it seemed to fit the bill. (my system is a 4500w system with Voc around 132v) PROS: -VERY beefy unit. This thing has some mass! The heatsink on the back spans the entire unit and then some, and seems ready to handle the 100A that can be thrown at it. -Good power connection points. I use 2 awg wire with a few strands cut off to fit into the battery terminal connections and it works fine. The connectors are well insulated and the strain relief for the big battery wires you might use are well done IMO. They actually designed it for wire that can handle 100 amps. -Quiet operation. I wasn't pushing 80A into the battery for very long, but no cooling fans came on or anything. It just did it's thing. -Data display. Lots of real time data about what's happening in your system. CONS/NITPICKS: -The Lithium battery setting defaults to Lithium Ion, NOT LiFEPO4 batteries. If you have this style of lithium in a 16s configuration, you need to use the "USER" battery type and program things by hand. -The battery parameters regardless of battery type are based on a 12v system. If you have a 24, 36, or 48v system you need to take your voltage parameters and divide them by 2, 3, or 4, respectively, when you program the unit. -There is no way to disable the equalization option in the menu even if you are using lithium batteries (i have my own balancer). I did a workaround by putting the time in equalization to 0 and set it to do it every 60 days as a just in case. -The manual has some what I'll call "ESL translation" issues (e.g. telling you to hit the "ok" button when there are only arrow buttons- they meant the "right arrow" button for the "ok" button). Some of these translation issues can leave you scratching your head until you read it a few times to get into their mindset. Overall, the beefy construction, quiet operation, and the plethora of real time data make up for the cons/nitpicks of this unit. I'm glad I gave this a try and for initial quality/performance I am very impressed. As I use it more I'll continue to update with how it works.

Awesome product! Works great, well made..happy camper!

This is the second unit I’ve bought. They are a great unit. And easy to run in parallel. They were handling 2500w easily. (With room for expansion)

Robusto ben fatto, completo di tutte le funzioni indispensabili per un mppt stand alone. Il dissipatore di calore è ben dimensionato e non necessita di ventole visti i rendimenti dichiarati dalla casa che credo siano corretti anche sulla base dei test che ho fatto. Inoltre il modello 20A gestisce potenze tutto sommato modeste ( 480w con batterie da 24v). Il display è a cristalli liquidi senza retroilluminazione con tutti i problemi dei cristalli liquidi. Di giorno e con vista frontale sono nitidi e chiari, con vista disallineato non si riescono a leggere. Non è che uno sta sempre lì a guardare il display, una volta impostato si controlla ogni tanto. Con l'app questi problemi non ci dovrebbero essere, però occorre comprare un ammennicolo wifi da aggiungere. La morsettiere fa il suo lavoro ma forse si poteva fare meglio. La programmazione è un po' macchinosa visto che si deve entrare nei vari menù, scorrerli fino al parametro di interesse, modificarlo e salvarlo. Vero che si fa una volta sola, ma è un po' noioso. Sul display di possono vedere tensioni e correnti gestire dall'apparecchio ma mancano statistiche più accurate, credo che sempre con app e ammennicolo il problema si risolva Cosi come la programmazione. Per me l'apparecchio va bene visto anche il costo di acquisto scontato ed è certamente completo per l'uso stand alone. Al prezzo di vendita pieno , senza sconti, si trovano apparecchi più completi con wifi app incluse.

I recently installed the Renogy Controller on my sailboat, and it has been performing flawlessly! The MPPT technology is highly efficient, maximizing the energy output from my solar panels, even in low-light conditions. The LCD display is clear and easy to navigate, providing all the information I need at a glance, including real-time system stats and charging status. I also appreciate the sturdy build quality and the numerous safety features, such as overcharging and short-circuit protection, which give me peace of mind. Overall, this charge controller is a fantastic choice for anyone looking to optimize their solar system. It’s reliable, easy to set up, and handles the load perfectly. Highly recommend it!

I bought this unit as a somewhat temporary backup for my main charge controller. The CC was easy to set up, the connection terminals have nice long tunnels to help remove stress on the exposed wire ends. So far the unit seems to be working well, and I appreciate the information available on the built in screen - such as daily kWh charge to batteries, as well as daily average charge information. Two concerns/gripes: 1) I'm not sure if this was a mistake, but my charge controller arrived with ZERO paperwork. Nothing at all, note even a card pointing you to their website. As this product is likely being installed in some locations where reliable internet access isn't a given, and that it is a device that controls so much power (therefore danger), I am very surprised that there is no literature included. By contrast my products from other established solar energy manufacturers comes with ample written support. 2) the device comes with a password set to ON by default, and you cannot change any parameters (even as fundamental as battery type) without this password. What is that password? Who knows... internet searches brought up nothing --- the password is 000000. I finally figured this out... I hope this saves somebody the same hassle I went through.