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based on 455 Customer Reviews
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January 7, 2018
Works fairly well. Draws ~13-18mA depending upon voltage off the battery constantly. ~3mA of that is in the LED's (depending again on voltage) and the rest is just running the on-board electronics. I also wish the battery status led's were a) dimmer or b) turned off at night. I adjusted the internal pot so that the LED's turned on/off at more useful voltages (12.9V, 12.0V) The lowest LED cannot be adjusted (~9.2V). The unit will automatically disconnect loads at somewhere between 10.5-11V (which is nice for preserving standard chemistry batteries). Can't beat the price. Nice internal heat dissipator for the power electronics with proper thermal interface material. Nothing fancy but pretty well made.
January 3, 2018
It may be too early to write reviews but this review is just based on my initial observation. So far it worked as described without going into technical details. I think the setup is good for an in-expensive regulator. Instructions, clear. I like that it has a battery power indicator (3 LED's). Four star is because at night the LED lights are still on. it doesn't consume much power but still consumes a little even without a load. I have a harbor freight regulator on one of my setup and all the LED's will turn off at night (means no charging from the panel). This is just so inexpensive to pass up and try. After discounts on HF this is still about 9 bucks cheaper. If everything goes well, this will be a good solar car battery maintainer with a minimum of 15W panel. My setup for this is just a regular car battery, a 50W panel laying flat on top of my sunroom, wired with low voltage 12g wire and a 300w inverter (kinda like a UPS). I use some of the stored power just to light up my computer desk using 12v car LED lights. My other setups is another story (like you!-a mad DIY scientist). It did help power my Uverse UPS for modem and phone for an extended internet access, when the power went down.
December 21, 2017
I needed a cheap controller for a small solar panel and this one fit the bill. Initially I had an issue withe seller sending me the wrong product but they sent the right one out. Shipping took forever from overseas (wish I knew before ordering). The charge controller is fairly small and simple. It gives you a quick glance at state of charge for the battery, if the panel is charging, and if there is a load on the battery. Simple and effective. I almost like this one better than my other controller for my larger solar setup. This one is easy to use and straight forward. I love it.
By James Alan Olmstead
December 20, 2017
This doesn't matter if you disconnect the charge controller after charging completes; but, either this model does not have a blocking diode or mine is broken, because my "conected" leds continue a weak glow after I disconnect the solar panel. I have ordered a second controller to test this problem; but, in any event, this is a great little package, especially the prong connectors and plastic shield cover. Those who complain about the "load" circuit not working probably do not know how load circuits work (only when there is no solar panel and/or when battery is fully charged). Check two controllers to verify before returning as defective. You need two for a backup anyway, so quitcherbit**in about buying a second one.
By CDP's Onceagain habit of purchasing
December 8, 2017
I'm setting up a battery system and an inverter to power some AC devices at my dock and this will control a 50w solar panel to charge up and power a couple marine deep cell batteries. Will connect a light to run for a few hours every night to give the system a load so the solar cell can recharge daily. When charging is done, I'll run the light for a few hours while it is still light then into the evening for collecting bugs near the water. Should attract some minnows and fish. We'll see how that works. This Patuoxun 10A 12V/24V Solar Charge Controller Solar Panel Battery Regulator Safe Protection seems to work for my system and will hide in the storage box under the solar panel facing southwesterly.
November 10, 2017
My cheap-o 7A controller disintegrated over time, like it was made of paper, and I needed a heavier controller anyway for my additional panels. This one is doing it's job quite well, no reverse feed at night, very little loss from panels to batteries, and the addition of contacts for LOAD are really nice to have! So far, I have zero complaints after two months of use. After using this charge controller for a year, it is still doing its job well, but not as well as it was last year. The output Voltage last year was 13.3V, and now it is pushing 12.8 on the average day. This is still sufficient to maintain a full-charge on a vehicle's battery, but not nearly enough to efficiently charge deep-cycle batteries in a solar bank. Dropping to 4-stars
By Cosmos Joseph
January 25, 2017
Stopped working in 7 days. My project consist of a 12 volt 5 watts solar panel, a 12 volt 7 amp battery, a 12 volt to 5V/2A power supply and the Docooler Solar Charge Controller. The load output worked sometimes, when it did my battery gets a full charge during the day, and supply my power supply during the night. However the controller NEVER show all 3 LEDs indicating full battery ( I tested the battery using a volt meter). Now on the 7th day all 3 LEDs stopped working and 1 to 2 volts on the load output. I then tried using it as a 24 volt setup, I got a 24V load output but still no battery level indication. UPDATE: I received a faulty one so the seller sent me a replacement and now after almost a year the replacement stopped working. No voltage on the load output. The seller quickly send a replacement but took a while to arrive because it came from China. It is working perfect, I guess I just got a faulty one the first time, I will upgrade to a 20 amps soon. The red LEDs indicating how much charge the battery has are very bright but they don't bother me, they actually gets brighter (one by one gradually) as the battery receives charge, so I can say I can "see" my battery charging.
By Steve K
July 11, 2017
The first unit I received did not work. I contacted the seller about the problem and we resolved it with email and a replacement unit was sent. The replacement unit works just fine. I would give 5 stars if the first unit worked. I am thankful the seller was responsive to my needs. Thank you!!
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