Renogy 400 Watt 12 Volt Premium 4 Pcs 100W Panel+40A MPPT Charge Controller+ Bluetooth Module Fuse+ Mounting Z Brackets+Adaptor Kit +Tray Cables Set, 400W, Grid 12V Solar Power System

Great system, after 3 yrs no problems whatsoever. Keeps me charged up. Perfect for a simple off grid application for a decent value.

Renogy, the name in serious solar! Renogy was my gateway into hobby solar. I started with this 400 watt kit as an entry level, but it seriously was more than I expected. My batteries charge quickly and are very happy. It's currently deployed in a garden shed for tool battery charging and for exterior lights. Installation was easy. Setup was a breeze. The app leaves a little more to be desired but it's informative and easy to use. The built in functionality will keep you engaged. With little sun exposure on cloudy days, these small panels are rocking and still providing enough amps to keep the batteries happy. The cables included in this kit are of high quality. Mounting the controller was easy. The kit came with temp sensor and Bluetooth module which is great. When the panels are completely exposed to the sun, I taken my batteries from nearly dead to full charge in a few hours while using them for gardening. If you're looking for a hobby system for home use, a small system for off-grid applications, look no further! This is your last stop.

These are infinitely better than expensive grid tie arrays. Easy install just plug and play. Ive actually got 700 watts up in series-parallel. My roof pitch faces east and west so I have 3 to catch the morning sun and 4 to catch the afternoon sun. Working great the voltage is about maxed out around noon in the summer but I think the mppt keeps it low enough. Got it hooked up to a 400ah battery. Powers a 6000btu window ac all day or a 500 watt space heater for several hours a day in winter. Also have a charging station and wifi it runs. Electric bill is $100 less per month. The mppt is really great. It will charge even on the cloudiest days. Very handy during 2 power outages already. For the money the value is unbeatable.

I've purchased Renogy products for other applications. Given the overall quality, it's time to do it again. The kit was pretty much as expected. It does the job and works well. I have a few things to criticize: 1) The wiring from the panels to the controller is a bit short. I installed this system on a class A motorhome. The wiring from the roof, down the rear cap, into the electrical box just barely reached. Another meter would be just fine. 2) The 30 amp fuse block is a bit big and clunky. It was hard to find a place to mount it so that all the wiring worked out. 3) There was an extra 10 amp fuse included with panel style connectors on it. Had no idea where to put it as it is underrated for the combined output of the panels. 4) No instructions! Good thing I'm an electrical engineer and know what to do with this stuff. Only the controller had instructions of any kind. 5) The BT-1 remote monitor accessory is a joke. It can't be paired correctly, and takes a long time to get connected and display anything. All I want to do is see what the battery level is and how much current is being pushed. A simpler hardwired panel would be much better and faster to use. Overall, a good value. I'd recommend this to others.

Absolutely perfect. Kept our camper fully powered all summer

Ok, so first - I’ve set up several similar solar panel configurations over the years, often using all the same components that are now available in this kit. Second, this is the best bank for your buck I’ve found anywhere. Particularly if you find it on a prime day sale- it’s practically wholesale. Third, this doesn’t bother me - but if this is your first introduction to solar, do know that it does NOT come with instructions. There is an owners manual for the MPPT controller, and one for the Bluetooth module, but no wholistic setup instructions. This is a bummer. Because it’s quite easy to get wrong if you’re not familiar with solar array series and parallel configuration installations. If this is you, be sure to do plenty of homework. Understands watts and amps, and how they relate to volts, at minimum. And then learn about the pros and cons of panel series wiring vs parallel wiring, vs hybrid - and as well, know whether you will have sun coverage for all panels equally (on average), or if there are times when one or more panels are shaded while others are not. The former is fine for series wiring, and is fundamentally easier. The latter requires parallel wiring for efficient solar capture and energy generation. Fourth, the curious thing about this setup is that it includes a 10amp ANL inline load fuse between the positive line and the MPPT controller. Generally, 10amp is only sufficient for series wiring. However, the kit includes the Y branches only used in parallel configurations- and parallel configurations generally require a higher amp ANL fuse. This is quite confusing to any novice, and rightly so. Renogy panels and MPPT controllers are great, but guys- you NEED to add instructions. At the very least to prevent dangerous misconfigurations, at most to assure the most efficient setup. And please fix the ANL fuse problem. Because these are not issues for me, I still give this an easy 5 stars. But if any of this doesn’t make sense, it’s imperative that you research it. In all, it took 45m to fully install the panels on my roof, run the wires into my garage, install two parallel 100ah lifepo4 batteries, and hardwire the grid to my inverter. Ps. This kit is well priced. The kit that includes two batteries and an inverter is way overpriced. Renogy batteries are overpriced (but good). You can find batteries with the same features, and better inverters, for half the cost of Renogy brand products. Renogy panels and controllers are worth it. Batteries and especially the inverters, not so much. Good luck

When designing the solar system for my RV, I wanted to get a system that would give me the best value for the dollar. So I elected to install 5 100 watt panels and use the Renogy 40a MPPT controller. Before ordering the components I called Renogy Customer Service and asked one of their technicians if this controller would support 5 panels. This person said that it would. So I put the system together and it wouldn't work. I called Renogy and told them and we were able to determine that the charging voltage was too high (Over 100 volts. The charge controller required that the voltage cannot exceed 100 volts. They never said anything about there being a "maximum allowed charge voltage" or anything like that for this unit in any of their descriptions or documentation or when I talked to them. I even ran this by one of their technicians just to be sure. What more could I do? Oh well, I will just return the 40 amp unit and get a unit that will work with my system: or so I thought. So I went to Renogy and I asked for an exchange or refund. They flatly refused and referred me to Amazon. Amazon referred me back to Renogy saying that they were a 3rd party seller and I would have to deal with them. The Amazon representative connected us up to Renogy, and they hung up on us. Obviously they are not going to issue me a refund or allow me to trade up. WHAT A BURN !!! I said BEWARE of 3rd Party SELLERS on AMAZON because if there is a problem, you might run the risk of getting into the endless loop of AMAZON referring you to the seller, and the seller refusing to work with you, and then sending you back to AMAZON. I feel robbed and cheated!!! Anyone need a 40 amp charge controller??? Renogy products were good quality, but be prepared for them to not stand behind their products. If you look at other product reviews for them you will find I am not the first. Beware of Renogy's technical ability: They were the ones who said that this charge controller would work for me: I didn't know so I asked them, yet they want me to lose all that money when they were at fault. Renogy has some great products, but I do not want to continue doing business with them. Renogy's offer to settle was no refund, and that they would give me a 15% reduction on the charge controller I needed. The trouble was that their price was $405 which was far more than the $181 price of comparable units on AMAZON.

This has been a great learning journey for me. In my video, I had just set my circuitry up and wanted to run a test to see if it would power my Gaming PC and it works flawlessly. During the day(on the weekends) I can game and depending on the game I'm playing, it can stay topped off at 100% battery charge and only drains about 5 amps at most while the sun's out. My PC normally is around 180 watts and on higher end games draws around 480 watts nearly 20 amps so at night I make sure to only game about 2 to 3 hours before my 200Ah battery gets near 50%. I got my wife using it now and she's become energy cognizant making sure to even remind me to use our solar power system that we setup together. We love it and this is one of my favorite purchases that I've ever made of all time! I got the whole kit during a sale and it was totally worth it. I highly recommend anyone interested in solar to go this route. I accidentally drained my battery to 77A and the solar panels charged it back to 200A in 8 hours and that was with clouds. Usually on a full sunny day you'll be able to run lots of appliances if you get the 2000 watt inverter. We've run a 10A vacuum cleaner with ease, our magic bullet blender, my 10A Bluetooth Aura 3 bass speaker, my work laptop 50-150 watts, Keurig 1500 watts (good for 2 cups only draws a lot of power) , we've charged our rechargeable batteries, our phones , USB lights,etc... The point being this is the best for a beginner like me. It was not super hard to setup. Make sure you get a battery shunt to better monitor your battery. That was why I ended up draining down to 77amps. The Bluetooth feature is nice but as you'll see if you use only that it is totally unreliable for a battery monitor. Either way the best part about it, is you learn so much and gain new skills. Highly recommend this product! I've officially gone solar off grid for my basic appliance needs! Also exuse my cables running everywhere on the floor it was a temporary setup to test what I was trying to do. Excuse the mess in general 😂