Renogy 10 Amp 12V/24V PWM Negative Ground Solar Charge Controller Compact Design w/LCD Display for AGM, Gel, Flooded and Lithium Battery, Wanderer 10A

I have an IRLP node with a 12V lithium battery for backup should the power go out and I needed a charge controller as the DC in I have is about 20V, which is naturally too high to simply directly connect. This controller is exactly what I needed. It will do SLA, flooded and lithium chemistries, you need to select type of battery manually, and you can dial in what charge voltage you want, in my case, according to the battery I have connected, it wants to see 14.4V. You can set up the LCD readout to display what you want for the most part and it has performed flawlessly since I have had it. The instructions are fairly clear on what you need to do to set it up and it actually is pretty easy. It has worked well during outages, switching from the input source to the battery is seamless. I am very happy with this controller and have already recommended this brand to my friends that were looking for one for their various reasons.

Without a doubt and after testing most of the PWM controllers in this realm, I'll say this one is the best. This one not only works, but you don't have to worry about it and it just works. It's also a great price for 17$ which is what I paid. If you are looking for a charge controller either for a backup or just because you have less than a 200w panel or two 100w panels in parallel this little controller will fit the bill for you. You can add the BT controller if you want but why? That costs more than this unit and this unit already has this data built in. Just press the select button to see voltage, amps, battery voltage, load, load settings and ways to maximize your small setup with a excellent PWM controller. Thank you Renogy for this controller and please keep this low price for all of us that know how to properly use this. This is seriously the best sub 20$ PWM controller out there for small panels and it just works with all the features it provides. I'm very happy with this unit and would highly recommend to anyone.

4 stars explained Pros -charging algorithm voltage values are correct as measured with DVM (only flooded, agm and LiFePo4 tested) -LiFePO4 charge voltages can be set by user from 14.2 default to most common values depending on battery manufacturer spec. I use 14.6 volts (new). 2018 version default was 14.4 volts -Completely sealed against elements -When equipped with Temp sensor, will include battery temp on the display rotation (new). Previous version required manually toggling the display -shows input Panel voltage (new). Cons -Battery voltage readings can be inaccurate for all battery types and worsen with temp sensor attached (but solar panel voltage readings OK). -Exchange to get a controller that read accurately resulted in an improvement, but attaching temp sensor again introduced .2v to .4v error. -Battery type selected does not display by default (previous versions did, i.e. Gel, Wet, LiFePo4, AGM) Have to push buttons on new version to go into Select Batt Type menu. -Battery type selection button often unresponsive. -Selecting LiFePo4 charge voltage values sometimes not responsive; if desired value is passed up in scrolling, could not scroll back; had to scroll through full range and couldn't get a response for each push of the button. -Panel and battery connection LEDs no longer present. Loss of an EZ visual status observation, possibly an energy saver. Must wait for status to scroll automatically or must scroll manually through display to see status. --Auto scroll interval too long to see 5 parameters. Two secs per parameter should do it. -Hard reset process discussed with Renogy to clear possible errors not described in manual and might or might not work. (later determined attaching temp sensor caused the incorrect readings) In a nutshell, some of the improvements in this version are welcome and some of the old features are missed. But that isn't the problem. This newer version had inexplicable battery voltage reading errors not present in in 2018 versions I own. Amazon and Renogy were great in trying to get a working replacement, but in the end, decided to abandon that effort in favor of a refund for now. LiFePo4 does not use temp compensated charging as lead acid batteries do. So, when the LiFePO4 battery voltage read spot on, backtracked to see what was different. The difference turned out to be the temperature sensor. I used the sensor for flooded and AGM, but disconnected it for LiFePo4. Attaching it caused a substantial voltage reading error for all battery types that made it impossible to accurately determine battery state of charge. Charge algorithms didn't seem to be affected when measured with an external DVM. Neither of the 2018 versions I own are affected by attaching the temp sensor. One other thing to remember about LiFePo4 batteries is they do not like to "float" at much above 13.6 volts after reaching full charge. This isn't much of a concern in solar charging because charging ceases in the absence of solar energy. Thus there is no real need to have a voltage limited float stage setting after the battery is fully charged and balanced. This is the very first time I've given 4 stars to an item I've been dissatisfied with, but this controller, even with the battery voltage reading issue still offers useful functionality once set up. Use an external monitor if you want accurate voltage readings to monitor state of charge when using with the temperature sensor. Otherwise, I especially like the user defined charging voltages for LiFePO4 as values can vary among LiFePO4 manufacturers. It's important to use the right setting. The temperature sensor addition should only cause the controller to do its job of reducing charging voltages above 77 deg F and increasing charging voltages below 77 deg F where temp compensated charging is necessary. It should NOT affect the accuracy of reading battery voltage. An otherwise 5 star controller gets a "pushed" 4 stars. It does all things well except show acceptable values for temperature compensated flooded and AGM battery voltage. Both the original and the replacement returned to Amazon citing the Renogy case number. If the accuracy of the resting voltage is of utmost importance, then 3 stars.

Finally, a controller that doesn't lie about being MPPT. This is PWM and appears to work well with my radio room backup ex-car battery. As others have said, the connections for the wire will take a realistic gauge for light solar work - #12 in my case. Instx for setup are plain enough. The readout rotates between incoming solar panel voltage, current from the panels going to the battery, battery charge voltage, current used by the "load" output, and error [or OK] code. I'd like to have seen this pass the full 10A it's rated for out of the "load" teeminals. For a garage or patio/pool lighting scenario, I'm sure it's fine. Turn on a VHF/UHF two-way radio, and the filter caps must confuse this charger's amp measurement as it goes into a protection mode. Not a problem in practice; I'll just keep running the radios off of the battery/AC-DC supply/solar cintroller feed all paralleled, per normal. All in all, a very fair deal for the money.

Unit is working well in my little solar powered shed with two 100 watt panels. No overcharging problems, etc. It has kept my (used, 2nd hand) battery bank charged up nicely.

Works correctly.

No complaints at all so far. Plugged a 160W Kings Folding panel into it, and in late afternoon, Winter sun on the east coast of Australia, angled towards the sun the best I could, I was pulling 7.85A out of this controller which is more than enough to keep my fridge running indefinitely off my lithium battery. Don't let people tell you that an MPPT is superior, because for small panels, there's very little difference in my experience. Excellent controller that I bought as a backup in case my CTEK blows an internal fuse (again) and is totally useless. Build quality is good, hard plastic with an aluminium base plate. The grub screws hold 8AWG cable very well and it won't pull out on their own easily. The LED indicators are very bright and easy to see in sunlight too.

Son cargadores solares de excelente calidad y modernos, vienen hasta con número de serie, funcionan muy bien con batería LiFePO4 y además vienen con la función de TIMER, los recomiendo ampliamente para cualquier tipo de proyecto fotovoltaico de iluminación.

I may have gotten a Friday afternoon item, you know , one of those things that were not quite finished off properly because the finishing hooter went off and the production line shut down and my unit was stuck in a box untested. Unfortunately it didn't support Lithium batteries, it said that it did in the advert, it said that it did on the Renogy webpages, but it didn't say that on the LCD display or on page 13 of the manual that came in the box with the unit. I contacted Renogy and after an hour of sending photos of my unit, serial number, receipt and explaining the situation it was suggested that I contact Amazon and ask them to sort it out. Anyway, they were as useful as a chocolate fireguard. Amazon, on the other hand, refunded me. So, now I am going to order a cheap mickey mouse controller, like the one in my shed's solar system, no branding, cheap as chips but it works. So much for going with a branded big name product. When I ran the Wanderer I couldn't even get more that 3,45v out of the load terminals, weird.... panel was producing 34v dc, battery 13.8v and load terminals 3.45v. Good luck with yours.

Los equipos Renogy funcionan sin problemas, son fáciles de configurar y seleccionar el tipo de batería a utilizar, la identificación automática del voltaje es otro punto a su favor