โ๏ธ Harness the sun smarter โ power your future with precision and protection!
The DFRobot Solar Panel Controller is a compact, high-efficiency 5V solar power management module featuring MPPT technology to maximize solar panel output. It supports up to 900mA charging current for 3.7V Li batteries via solar or USB input, includes advanced battery and panel protection, and offers a controllable 5V/1A DC-DC output, making it ideal for smart solar-powered devices and low-power applications.
| ASIN | B07MML4YJV |
| Best Sellers Rank | 196,049 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 205 in Solar & Wind Energy PWM Controllers |
| Brand | DFRobot |
| Colour | brown|green|black|yellow |
| Customer Reviews | 4.5 out of 5 stars 114 Reviews |
| Item Weight | 0.07 Kilograms |
| Item weight | 0.07 Kilograms |
| Manufacturer | DFROBOT |
| Manufacturer Part Number | DFR0559 |
| Material | Aluminium |
| Model Number | DFR0559 |
| Voltage | 5 Volts |
J**S
Does all the things and does them well - except maybe the boot button?
I'm using this to power a MeshCore repeater. On the MPPT side of things, I checked it after a day of operation and it seems to keep the 18650 batteries (wired in parallel) close to 4.2v using a small 5w pannel. On the output power side of things, the regulated 5v measures at 5.11v (on both output USB and pins) and didn't dip while under test, so it seems to keep up with power demand just fine. I was not able to detect any noise on the 5v output using my Xminilab oscilloscope, but I put a 1000uF capacitor on it anyway to reduce the possibility of signal interference. When I first plugged in the battery, I noticed that it powered on by itself (desirable for this use case). When I later unplugged the battery and plugged it back in, I had to press the "boot" button get the output going again. I hope this is not a button I have to press in the scenario where the batteries fully discharge and charge up again. Time will tell.
A**R
Product is exactly what is listed but way over priced
This was exactly what I was looking for but didnโt want to wait for shipping from AliExpress for a fraction of the price.
C**S
Good buy, quality item.
Worked well for what I needed. I used this for a solar project for my son. It has all the connections that you would need and is very well made. Good price for a good item.
P**L
Good, but doesn't restart if battery dies
Good product, works as advertised. Fully charges the battery from solar, and the reverse indicators are nice to have, just in case. Only con is that if the battery fully dies, the circuit won't restart outputting power to the load. It will recharge the battery, but I have to disconnect and reconnect the load in order to get power to flow again, which is obviously not ideal for applications where the circuit is less accessible. Paired with a large enough battery though, this shouldn't be a concern.
C**R
Expected better quality
Purchased this on June 5th, 2025 for a solar powered weather station. Little over 3 months later, this is dead. Will not operate even if I plug in 5c USB cable into it. I could understand if this was 2-3 old but 3 months? Update: I am changing my rating as I was sent a replacement. Good customer service.
Trustpilot
2 days ago
3 days ago