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🔆 Charge smarter, live greener — never miss a watt!
The Wanderer BL912 MPPT 40A solar charge controller is a high-efficiency regulator designed for 12V and 24V lead-acid and lithium batteries. Featuring advanced MPPT technology, it increases solar charging efficiency by up to 30%, while its intelligent protections prevent battery damage. Equipped with dual USB ports and an LCD display, it offers versatile power management and real-time system monitoring, making it ideal for professional-grade solar setups.
| ASIN | B09B739BGQ |
| Best Sellers Rank | 10,048 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 11 in Solar & Wind Energy MPPT Controllers |
| Brand | Y&H |
| Colour | black|blue |
| Country Of Origin | China |
| Customer Reviews | 3.7 out of 5 stars 83 Reviews |
| Display Type | LCD |
| Display type | LCD |
| Item Weight | 0.29 Kilograms |
| Item weight | 0.29 Kilograms |
| Manufacturer | Y&H |
| Manufacturer Part Number | BL912-40A |
| Material | Plastic |
| UPC | 746608838422 |
| Voltage | 24 Volts |
W**B
Solar regulator
30amp solar regulator quality stuff
D**G
Works just fine
Hooked up to 2 x 200w solar panels and charging two 130a lead acid batteries
Z**9
Manual is wromg
The manual that come with it must be wrong it states b01 is lithium type and b02 is wet type battery, but b02 only let's yij set the float to 12.5v maxwhich is to low and b01 let's you set upto 14.6v max, have just seen a video of same controller and the manual states b01 is for wet type. Very poor
M**6
Caught fire
Awfully company deal with. The controller caught fire200 watt parellel
A**R
Y&H MPPT Solar Controller
The Y&H MPPT solar controller arrived next day, I installed it in our new caravan connected in to a new 100 watt solar panel mounted on the roof. The controller was preset to 14.2 volts float voltage, and now my battery is sits happily at 14.2 volts. Easy to install, and it just works. MPPT rather than PWM seems to be the way to go , and now the prices are getting very similar.
C**T
Cheap plastic controller
This solar controller was great when first installed. A little plastic in construction but good visibility on the screen and easy to follow instructions. Only drawback is that the LCD screen stopped working 5 months later. Contacted the customer service and they put me through to the supplier, once you jump through all the hoops with descriptions, pictures and videos. The advice was to take it apart to check the wiring. Send it back for repair at my cost.
C**N
Solar charge control
Very simple fix as long as you connect battery wires first otherwise you will damage the unit. Works really well. Way quicker charge than my old one.
R**N
Working ok
Instructions are not as clear to use and set up solar panel charging, news more detail, explanation as to what things means, I am tecky and struggled, finally got there asking a colleaguue
A**N
Not worked properly and broke
When it arrived, the screen was not working properly, the voltage was not showing properly, it broke down after 1 day. I returned it, it is a trash product.
Trustpilot
5 days ago
3 weeks ago