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

This seems to be doing its job, i have had it nearly a year now. I have had a heck of a time setting up the safe shut down though. So i am not sure what to do with that just yet but i might get around to it soo. If i do then i can update my review once I get that sorted out! We have two complete gaming computer setups on this one and it is flawless!

I have gone through 3 different MPPT controllers and this is the first to actually do everything it stated. Installation couldn't have been easier. I like the mounting brackets, they make mounting way easy. The controls although not all that obvious are easy to get used to. A straight right pointing arrow does not scream "Enter". Setting up the battery type and the load mode was super simple. So far so good. If things change I will edit. (NOTE: The Tech Support and Weather proof, I cannot comment on as I have not used the support or had "Weather" issue that would effect the controller) I had an opportunity to reach out the Tech support/customer service. I was attempting to register my warranty, However when I hit submit I was informed that the SKU/Product number was not found. I went thru the list and sure enough it was not there. According to support, I did not need to register my warranty since I bought it from Amazon and that I should just keep the Amazon information.

Great replacement for the PWM controller that came with our Renogy Solar kit. Initially we had the Renogy PWM 30 AMP controller and it was an entry level controller in all respects. The previous controller was limited to a 12 volt battery source had 2 lead pairs, one for solar panel connection and the other for the battery side connection. Any load connected to the battery array had to be connected directly to the batteries and was not governed by the controller. Also you had to rely on LED indicator lights To determine when the controller was in charge mode versus float mode. Adequate for an entry level controller but not great. Now lets talk about this controller. First, this controller is capable of 12 or 24 volt wiring installations. 24 volt DC is superior to 12 volt DC because it cuts the Amperage draw in half on the DC end. A 1.2 Amp TV running on AC/120 volts will require 12 Amps on the 12v-DC end to meet the same 140 Watt requirement. A 24 volt DC setup will reduce the amperage requirement down to 6 amps on DC, which means your DC wiring gauge doesn’t have to be as robust when supporting a 24 volt application. Secondly, the LCD display is great and is a must for a solar charge controller. It’s not enough to know that the solar cells are charging the battery, you may also want to know how “fast” they are charging the battery and whether or not the panels should be angled to reach optimized charge rate. The LCD screen also provides a percentage estimate of battery remaining in addition to the amps that are being supplied by the panels, along with a running amp-hour accumulation of charge provided the panels over a period of time and current battery voltage. Third, it has a pair of positive/negative load leads that permit connecting appliance loads up to 20 Amps DC. It’s not necessary to use the load leads for connecting the devices that run off the battery, but the added advantage of using them is that your battery array is protected from over-consumption, as the leads shut off usage on the battery once it reaches a certain level of discharge in order to protect the battery array. I’ve only used the new controller once, but the instructions were easy to follow and I made a laminated copy of the LED and Menu options as a quick reference guide that will go along with the kit on camping trips. Currently the array powers my 400 Watt (4x100W) kit and 2 VMAX 125ah batteries wired in parallel, but I am seriously thinking of doubling the panel array and adding 2 more batteries in a series/parallel configuration to take advantage of the 24 volt capabilities of this controller. Quick Note on the 100 Watt Renogy panels: When I measured the charge current of the 4 x 100 watt panels connected in Parallel I noted an 18.5 amp charge rate on the new controller or ~4.6 amps per panel. That seemed low to me given that 400 watts/12v is around 33.3 amps, or 8.33 amps per panel. In discussions with Renogy support I found out that the 100 Watts is calculated at 17.9 volts * 5.7 amps, where they use the maximum charge voltage by each of the panels as basis for the calculation. Just something to be aware of when you are reading sub-5 amps per panel charge rate on your controller. This new controller works as advertised, was relatively inexpensive for what it does, and I may update the review again in 12 months after running it a few more times for a consistency check.

This works well to charge LiFePO batteries - but you have to change the settings. The default "Li" (Lithium) setting doesn't do it. I don't know what logic it applies in the "Li" setting, but my LiFePO batteries went dead. Once dead, the controller would not apply any current to recharge them. I had to change the battery type to "USE". The "USE" setting allows you to set the battery charging parameters - Equalizing voltage (which you can't shut off, but doesn't apply to LiFePO batteries), Boost voltage, Floating charging voltage, over-discharge return voltage, Over-discharge voltage - to your LiFePO battery's specs. Once done, they charged very quickly and stayed that way. LiFePO batteries typically have a built-in BMS unlike Lithium Ion batteries. Also, the manual that comes with the unit is nowhere near as detailed as the one that you can download from here (or Renogy's site). What's included in the box is pretty much a quick-start guide that doesn't get into detailed settings.

One huge problem. Renogy has a password system. I purchased the bluetooth module to go along with my system. Finally, after I don't know how many times having to enter my password over the last 2.5 years, the phone app will not take my P.W. and I cannot get a new one. Essentially, im shut out of my own system using Bluetooth. The big question is, of course, why on earth do I need a password? It's ridiculous. I'll never buy Renogy products again.

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!

Ein gutes Produkt zu einem fairen Preis , leicht zu montieren und einzurichten