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Mr Fox
2025-08-18 10:52:46
Works great
Kathryn Athena
2025-08-09 15:37:53
5 stars! It does the job for the rock bottom price of $10. Be amazed!Ok, here is reality. I have used this unit for 7 months to experiment with a 100W system.It regulates the charging of my very nice no maintenance lead acid batteries. It knows how to do this and most of the time it also knows that I am setup in 12v mode.1. Do not use the 12v extension or the 5v USB connections. They really are not functional for any reasonable current output. The board will stress, a resistor heats up on the board and the LCD will blink out temporarily.I have not fried the board but I would advise connecting all power draw, USB or otherwise through a fuse block directly from your batteries.Sometimes the controller decides for no good reason that you are in 24 volt mode. This isn't good because it seems to happen when my battery is almost fully charged over 13V. That means it will try to overdrive well over 14V and possibly 6 or more amps into a full battery. This is no good.If you catch this your first easy sign is the battery charge picture will say barely charged... Disconnect the solar, then the battery... Wait 15 seconds then plug the battery back in... Carefully connect your solar panel. Pray it stays in 12V modeAt the moment I unplug the solar panel when the battery is mostly charged and the system decides that it's 24V. I am only using this as a test bed drawing small energy for 5V USB networks at the moment.When I get serious and add more power and a proper converter I will pay good money for a real controller.So, great for the low price of $10 , great learning tool but pay real money if you want a reliable system you can count on.
I. Larsen
2025-07-19 15:36:03
I bought this controller so I would not over charge the battery for my gate. For that it works with no problems. When I hooked up the gate to the load ports, the gate would not work because it is too much of a load for the controller, so I had to bypass the power to the gate and just use the controller as over charge protection for the battery. For that it works excellent.
Wissam Abouelias
2025-06-28 18:12:41
Just doesn't workDoes not turn on when connected to the battery. Defective just like the last one of the same shape but with blue stickers instead of red. They are all the same Defective Chinese ones you can get on t1333eeee3mouuùuuuuu for like 3.50$..
Customer
2025-06-26 16:36:50
Haven't had to use the Tech support, nor have I exposed it to water and have no plan to do so.It is a simple easy to use small solar controller for a 300 watt or less system.Just got back from a 6 day Horse riding trip in the mountains and this controller with one one hundred watt panel, was able to keep my Horse trailer with full living quarters was able to keep my 12 volt system operating like it should. This was in a remote location with no AC power at all. It did just what I put it there to do, especially on two days the battery was pulled down more than it should have been because the person camping with me didn't cut off all the lights and we had to run the central heat for two nights . Brought batteries back up peak levels with no problem . The controller didn't seem to any issues running one of my outside lights that draws 10 to 12 amps through the controlled output on the controller, it's only rated for 10 amps.I bought two, the second one will be put in a friend's Horse trailer to give him better remote area power options.Just make sure to set the cut on, cut off or to suit your system as the factory settings probably are not the optimal settings you will need.Great unit that functions well and as long as your battery is not dead the USB ports will work to charge your devices !
Brendon Morris
2025-06-18 18:25:50
My first one did not work properly I bought another one and sent the old one back and then I also sent one to a friend of mine he has not hooked up his at all or attempted to use it I have been using mine for a few months now and it's great it puts out 24 volts but does not allow the batteries to get more than 16 volts on them great product exactly what they said it is the quality is great there's no Bluetooth but best value for your money and it's very durable
tim
2025-06-01 11:05:56
LIKES:The "set" charge voltage was exactly 14.4 on a deep cycle marine. or 2.4 volts per cell. According to Battery University a perfect float voltage for this kind of battery..DISLIKES: THESE ISSUES makes the whole product a THREE STAR and it could be a FIVE STAR with more attention to install and operating instructions.EXAMPLE: BTW there is no information on what wire gauge to use. A SERIOUS FAULT. Found only in a user question (BTW, AWG12) Instructions are nothing short of Horrendous. You have to go to many YouTube vids and view several to get the correct steps as each YouTube presentation has it's own problems with explanation.I found none that told the whole story..The 4 icons do not have any use on the unit except adding confusion. They are not interactive as they seem to be.Briefly, push left MENU button repeatedly to arrive at the setting that you will use. Then hold that down until it flashes. 5 to 12 seconds. At that time the + and the - keys will operate. I still do not have it all figured out but when I do I will post it.INSTALLATION:The entry holes for the insulation and wire are barely large enough to insert AWG 12 with some insulation. I used AWG 10 for extra "load " protection. Therefor only the bare wire passed thru.Overbuilding works well, until it doesn't.Open the inside wire clamps before inserting using the screws on the front panel. It looked like they already were open BUT alas..... they are not.Operating continually now for 2 days to a double panel, 340 total watts and all seems fine.
Jim Langstaff
2025-04-16 16:32:50
Excellent solar controller, it's done an awesome job maintaining my emergency back battery for the past two years. I bought a second controller for off site use.Very reliable and pleased.
Luc Lemoine
2025-03-09 16:58:59
I am using this device along with a 100 watt Coleman panel I bought from Canadian Tire that came without a charge controller (thanks for nothing Coleman! 🙄). Works exactly as promised/described on Amazon's listing. I like that I can configure the output power level to the battery, the charge level and the cut off (battery full) level myself (for now I've left them on the defaults). Very simple to use & adjust.The accessory 12v power output connector is an interesting idea, but as another reviewer mentioned, it seems to come on and off on a whim. I was under the impression from the instructions that it would turn on when the panel was inactive (at dark), and back off once it was charging again (when sunny) when set to 00. But when I tested this by disconnecting the panel to simulate dark, it came on and stayed on after the panel was reconnected. Weird. There is some kind of timer control to it, I didn't really explore it much more, but you can set it from 00-24. Does it just count time down from the setting once you set it? Who knows, there is very little information about it in the instructions. (As is typical with Chinese products purchased on Amazon).The USB outlets charge at a reasonably fast rate (my Samsung phone was at 39% & claimed it would be fully charged in two hours).The only other concern I have is regarding those very USB outlets. They are active even when the panel is disconnected (ie: when only the battery alone is connected). This tells me they are drawing and converting 12v from the battery to 5v for the USB outlets constantly. I suspect this could lead to a slow vampire draw on the deepcycle battery when/if the system sits idle without any panel connected to it or at night. But if you always have a panel connected, that shouldn't really matter - the daytime solar charging would likely more than make up for it.I was getting 13.1/13.2 volts into my battery under a heavy overcast sky late in the day, my panel was putting out more than 18 volts at the time.I definitely highly recommend this simple little controller, I'm completely satisfied for under $20 (including taxes).
Lisa
2025-02-21 14:16:13
We are in sunshine most everyday in the desert and our 200watt portable panel charges our 100ah LiFePo4 battery to make our life easier. Glad I got this before our winter trip. I'd buy this without hesitation.
M. Martin
2025-01-15 18:20:44
These are inexpensive but it does the job, they are not the most efficient type but for what I am using it for on my motorhome it does the job, it trickle the leisure battery when we are not on mains, assuming the sun is out of course, which helps to keep it topped up. It is straightforward to connect and the display lets you see when it is or is not providing a charge.
Cliente de
2024-12-14 11:15:46
Funciona bien a secas, puntos en contra de calentaba y bajaba la energÃa que mandaba a la baterÃa, la otra contra es que sus contactos son endebles y los cables que llegan del panel con el movimiento se aflojan y sueltan, soporta el panel de 390w
Bob bennett
2024-11-26 13:35:36
Not fitted yet but feels strongly built, so looks like it will last.
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