An interesting little buck converter with dual LED display which claims to have an MPPT function. Unfortunately the frustrating British weather made it almost impossible to test this device. To be continued...
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MPPT Solar Panel Controller 5A DC-DC Step-down CC/CV Charging Module+Digital led #new http://www.ebay.com/itm/-/181777848971
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MPPT Solar Panel Controller 5A DC-DC Step-down CC/CV Charging Module+Digital led #new http://www.ebay.com/itm/-/181777848971
Very nice 👌
Hello! I am interested about the screwdriver for adjustable mini resistance. Where do you find it ?
Hi! I'm a noob to the solar thing. I have a question. If i have a solar panel that gives max voltage of 24 vdc and use this mppt, how do i set to charge 3 of the 18650 batteries while the led is running? Thanks!
Goodnight
Do you have an instruction manual for this converter, I'm looking for it and I can't find it, the video helped a lot, but I'd like the PDF to consult when I have questions about something, hugs.
Hello, I have attached a lifepo4 battery to this voltage reducer and connected it to the solar panel. When I wake up in the morning, the regulator does not charge. you have to remove the battery and when you reinstall it this error doesn't happen i don't want to deal with it what should i do
Wish i had seen this first. I fired my module . Did not know about the blocking diode . Also that the negative wire on solar must not be joined to the negative on the output. Second board has been ordered .
What did you use to turn the pots? It looked so nice!
Seems it would be better suited for a small generator, micro hydro generator, to prevent slowing it too much, I was hoping these had some logic, enough to keep the voltage from dropping anyway, I was hoping to use one of these to trickle charge/ maintain a car battery while parked, that the electronics run the battery flat after a couple weeks, I guess it will be a pen controller, with the 20w pv, maybe I will try a buck converter between, to drop the voltage closer to battery voltage, at least 15v, I'm not sure how this will effect the dc converter, I always wondered how a decent size capacitor connected to the pv would effect the charge controller, and panel output
I'm searching for a cheap solar charger like this one but for charging 36v or even 48v batteries. Do you know any ?
How about decreasing the output voltage to 5v to charge the phone directly, will the current improve?
Helpfull video. I looked for this converter in my little diy solar system (very very little) more like an Not Portable Powerbank. And nö that i found your Video i'll definetly by it!
Hello !!
There is a second part / video of this MPPT Solar Buck Regulator LED Display.
If so, can you tell me the link.
Thanks
Did you in the meantime find out if this module really has MPPT? I doubt it – as there is no controler chip for that – as you mentioned. But i am discussion with someone who claims this has MPPT and it works fine 🙂 It has kind of "manual adjustable" MPP – but no tracking at all. The tracking must be done by your own – which is senseless imho 🙂
I've been using this exact board in my shed for the last 2 years. One thing I did differently, is instead of connecting a cheap 1N4001 diode, I bought the SM74611KTTR diode (less than 30mV forward drop, pretty incredible). It's fed from a 20W solar panel and charges 4 small 12V scooter batteries in parallel, which power my DIY night-light. The shed is very humid at times, when it's raining outside, but the board never gave up and it works to this day. Very happy with it.