🌞 Charge Ahead with Confidence!
The SUNYIMAMPPT Controller 300W is a state-of-the-art solar boost charge controller designed for electric vehicles, featuring advanced MPPT technology for maximum efficiency, adjustable voltage settings, and robust safety features to protect your battery investment.
| Package Dimensions | 21.5 x 10.5 x 5.4 cm; 498 Grams |
| Batteries required | No |
| Included components | MPPT Controller |
A**M
Connect fused side to the battery, not panel!
Just installed this today. The blue sticker that shows where to connect battery and PV is flipped 180 degrees. The side with the fuse must go to the battery.The screen is very useful, it shows (in a loop) battery voltage, PV voltage and PV current.
S**E
Æøå
Very Nice to charge bicycle battery dirrectly from Sun with low power loss
F**T
Seems to be working
It seems that several problems I had with this controller are related to the label on it. Other reviewers have already noted that the leads are backwards, but I haven't read one addressing the fact that it also describes the output voltage as "self setting." That contradicts the manual and caused me a lot of confusion. I don't believe that it is self setting at all.I bought mine to charge a 36 volt golf cart I keep at the farm, where there is no power except a generator. I hooked it to a 100 watt panel to keep the cart charge topped off when I'm not there. I trusted the self setting statement and it seemed to be working at first, but I eventually realized it was putting too much charge into the cart. At times it was up to 46 volts, which is 3 volts too many on a 36 volt cart.The "button" the manual describes for setting the voltage isn't what I would call a button. It is more like the adjustment on a watch, and the only way I could get it to set was to insert a small nail into it (blunt end of a finishing nail). After doing that, it seems that the controller is preset to 48 volts. I think I have it set to 36 now, and it seems to be working. Time will tell.I think this might be a good controller; the issues seem to be with the label and the manual. I don't understand why the company could obviously spend a lot of money in developing and manufacturing it and then not be willing to spend a few dollars on an English technical writer.
S**G
Funktioniert prima in meinem Elektro Kabinenroller mit 72V
Einstellen der Batteriespannung war etwas kniffelig und das Display ist zu manch zu hell (!) aber ansonsten funktioniert das Gerät einwandfrei in Verbindung mit meinem 72V Li Akku und dem Solarpanel auf meinem E-KARO
K**R
so far a useless chunk of metal with a couple of LED lights
connected to chanrge 48V LiFEPo4 batter from 12V PV 220Wt panel (golf cart setup)Connectors on the unit are swapped per web page ("battery" side is marked as PV side)Connecting per web site (device side marked as PV connected to battery) - both leds come up but the display show battery voltage instead of PV voltage. Connecting PV does not make any difference to the leds or panel and current remains 0Connecitng per sticker (PV side to PV sticke) - device does not even come up, no ledsThe manual is horrible.The bottom line - either device does not work and is a piece of junk, or there are some hidden tricks that are not documented, or I just got unlicky and got DOA device, or all of the above.Rating is as 1 star (since I can'd do 0) and will return .The bottom line - it's either a piece of junk or mine was simply DOA
Trustpilot
2 weeks ago
1 day ago
