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MERRY20

Solar Charge Controller 40A 12V/24V MPPT

$169.00 $339.00
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PRODUCT HIGHLIGHTS

  • 40A MPPT Regulator
  • Lithium battery activation function
  • 12V/24V Automatic System Recognition
  • Supports Gel, Flooded, Sealed and Lithium batteries
  • RJ45 PORT/RS485 communicate
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Take your off-grid solar power system to the next level with our 40A MPPT Solar Charge Controller, designed for unmatched efficiency and durability.

Safety At Its Best

Whether you’re powering an RV, boat, or home system, this solar panel charge controller for off-grid systems, on-grid systems, and hybrid setups is the solution to your power needs, ensuring your batteries are charged properly and protecting your entire system from quickly degrading.

With multiple electronic protection features, such as over-charging, over-discharging, reverse polarity, over-load, and over-temperature protections, you can be sure your batteries will work smoothly and safely for a long time.

Maximum Efficiency, Ultimate Control

The advanced MPPT (Maximum Power Point Tracking) technology makes this 40A solar regulator highly efficient, offering up to 99% tracking efficiency—a significant upgrade over traditional PWM controllers. The imported advanced microchips embedded in its system guarantees significantly higher monitoring accuracy and better battery protection.

User-Friendly and Widely Compatible

Guaranteeing an intuitive experience for every user, this MPPT solar charge controller is easy to use. One of its standout features is the automatic system detection for 12V and 24V batteries—no need for manual adjustments. Plus, the controller is fully compatible with a wide range of battery types like gel, flooded, sealed/AGM, or lithium-iron phosphate (LiFePO4) batteries.

Versatile Applications

This reliable 40A solar regulator is ultra-versatile and is designed for a wide range of uses for various off-grid power needs:

  • Off-Grid Enthusiasts: Perfect for powering remote cabins, tiny homes, or solar backup systems
  • Outdoor Adventurers: Ideal for RVs, campers, and boats—this controller ensures your solar setup is always ready with consistent power
  • Eco-Conscious Users: Maximise the potential of your solar panels with the advanced MPPT technology, reducing your environmental footprint
  • Emergency Preppers: Those looking for a reliable off-grid power system will benefit from this controller/regulator in keeping systems running during power outages or emergencies

Wherever you are, whatever you need—this solar panel charge controller for off-grid systems has you covered!

Why Choose MPPT Over PWM?

Choosing an MPPT solar charge controller instead of a PWM (Pulse Width Modulation) controller can make all the difference to your system’s performance. MPPT controllers are up to 30% more efficient, especially in cloudy weather or when the solar panel voltage is significantly higher than the battery voltage.

MPPT also continuously adjusts to the optimum voltage and current levels, ensuring that every ray of sunlight is maximised to deliver more power to your batteries. Unlike PWM, MPPT works better with modern high-voltage panels and can handle larger systems without power loss, making it the superior choice.

Installation Tips

Safely and easily install your new 40A MPPT Solar Charge Controller with these simple tips:

  • Always connect the battery first, followed by the solar panel, and finally any load connections. This will prevent damage to the controller.
  • Install the controller in a well-ventilated area away from direct sunlight or heat sources.
  • Use the appropriate size of cables to reduce voltage drops and ensure efficient power transfer.

Troubleshooting Common Issues

In case you encounter minor troubles, here are easy ways to fix them:

1. Controller Not Powering On

Check the battery connections and ensure that the battery has sufficient voltage to activate the 40A solar regulator/charge controller.

2. Low Charging Performance

Verify that the solar panels are clean, positioned correctly, and receiving direct sunlight. Check for any loose or damaged wiring.

3. Overheating

Make sure it is properly ventilated and avoid installing the controller in confined spaces or near heat sources.

Take Control of Your Solar Power Today

Upgrade your system with the 40A MPPT Solar Charge Controller or other solar charge controllers from our range and enjoy unmatched performance, greater energy savings, and peace of mind knowing your batteries are protected. Get yours today and experience the MPPT difference!

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Solar Charge Controller 40A 12V/24V MPPT

$169.00 $339.00

SPECIFICATIONS

Rated Charge Current: 40A
System Rated Voltage: 12V/24V Auto Recognized
Maximum Battery Voltage: 8V-32V
Static Loss: 50mA
HVD: Lead acid battery 16V
Light Control Voltage: 5V/10V/15V/20V
LCD Temperature: -20℃~+70℃
Operating Temperature: -20℃~+55℃
Storage Temperature: -30℃~+80℃
Protection Class: IP30
Grounded Type: Positive grounded

DIMENSIONS & WEIGHT

Dimensions: 215mm x 145mm x 75mm
Weight:  -

WHAT'S IN THE BOX

1 x MPPT Controller
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