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Your Professional MPPT Charge Controllers Supplier

 

KANKAN New Energy Co., Ltd. is a green energy enterprise specializing in the research, design, production, sales, and service of photovoltaic and energy storage products. Our main products include solar controllers, inverters, solar panels, energy storage lithium batteries, and integrated inverter-storage power supplies.

 

 
 
Why Choose Us
 

International Certifications and Compliance Support

The company holds internationally recognized management and product certifications, including ISO 9001 (Quality Management), ISO 14001 (Environmental Management), ISO 45001 (Occupational Health and Safety), TÜV Rheinland, CE, IECEE CB Scheme, and CQC marks. In addition, we provide full regulatory support to customers for market-specific conformity assessments—such as PSI (Pakistan), CoC (Kenya, Nigeria, Ghana), SONCAP (Nigeria), and SABER (Saudi Arabia)—including documentation preparation, testing coordination, and certification application management.

OEM/ODM Custom Solutions

We offer end-to-end OEM and ODM solutions, supported by in-house R&D, flexible production lines, and rigorous quality control protocols. Our engineering team collaborates closely with global partners to co-develop tailored solar energy systems and integrated energy storage solutions that meet stringent performance, safety, and regional compliance requirements.

Strong Experience

With 15 years of continuous operation and sustained investment in product validation, reliability testing, and field performance monitoring, KANKAN has established a robust reputation for consistent quality, technological responsiveness, and long-term operational dependability.

 

Parameter

Product parameters

Model

KKCM-40

KKCM-50

KKCM-60

KKCM-80

KKCM-100

KKCM-120

System voltage

12V/24V/36V/48V/Auto

Battery type

FLD/GEL/SLD/LI/USER

No-load loss

≤0.4W

Max solar input voltage

160V (25℃), 150V (-25℃)

Battery voltage

9~64V

Rated charging current

40A

50A

60A

80A

100A

120A

Rated load current

20A

60A

Load operating mode

① Light control ② Light control + time control ③ Manual control (default) ④ Debug mode ⑤ Normally open

Max photovoltaic system input power

480W/12V

600W/12V

720W/12V

960W/12V

1200W/12V

1440W/12V

960W/24V

1200W/24V

1440W/24V

1920W/24V

2400W/24V

2880W/24V

1440W/36V

1800W/36V

2160W/36V

2880W/36V

3600W/36V

4320W/36V

1920W/48V

2400W/48V

2880W/48V

3840W/48V

4800W/48V

5760W/48V

Conversion efficiency

≤98%

MPPT tracking efficiency

>99%

Temperature compensation factor

-2mv/℃/2V (default)

Operating temperature

-10℃~+65℃

Waterproof grade

IP21

Product size

242x188x67mm

313x225x105mm

Net weight

1.36kg

2.9kg

Gross weight

1.54kg

3.15kg

Each quantity carton

8pcs/carton

4pcs/carton

Carton Size

57*43.5*23.5CM

60*36*27CM

Electromagnetic compatibility

EN61000, EN55022, EN55024

Communication method

RS485(valinnainen)/ WiFi (valinnainen)

Altitude

≤3000m

 

Benefits of MPPT Charge Controllers

 
More Efficient Power Transfer

Both types of solar charge controllers regulate the flow of energy from your panels to the battery, but the current must be carefully managed because a battery can only hold so much power at a time. If too much current is sent, most of that energy will be lost. Unlike PWM controllers, the MPPT controller optimizes both voltage and current, allowing your system to store more of the available wattage from your solar panels. This efficiency is crucial for maximizing the performance of your solar power system and meeting your energy needs.

Less Dependence on Weather Conditions

An essential factor in solar power is the ability to store energy for use when sunlight is limited. On cloudy days, the optimal power point fluctuates throughout the day. The more time your system operates away from this optimal balance, the less efficient it becomes. An MPPT controller constantly adjusts to these environmental changes, helping your system maintain the highest possible energy output regardless of weather conditions.

Fewer Panels Required

When you can capture more power from each solar panel, you need fewer panels to meet your energy requirements. This not only saves you money on purchasing a smaller solar array but also gives you greater flexibility in panel placement. You can focus on positioning your panels in areas that receive the most sunlight, optimizing energy conversion.

Ideal for Large Solar Systems

As your solar system grows, maximizing the efficiency of each panel becomes even more important. In larger arrays, the cumulative energy loss from each panel can add up. By using an MPPT controller, you significantly improve energy output across your entire array. The efficiency gains from each panel translate into substantial benefits over time, especially in large-scale systems.

Faster Return on Investment

While an MPPT controller has a higher upfront cost compared to a PWM controller, its added functionality makes it a better long-term investment. Solar energy systems reduce energy costs and lower your carbon footprint, and an MPPT controller allows you to realize these benefits more quickly and fully than a PWM controller, ultimately speeding up your return on investment.

 

MPPT Charge Controllers Working Principle

 

The Maximum Power Point Concept

Solar panels have different electric output and efficiency levels depending on factors such as time of day, cloud cover, and temperature. The maximum power point represents the ideal combination of voltage and current where your panel produces the most power.

This optimal point changes throughout the day. Cloud cover, temperature variations, and sun angle all affect panel performance. An MPPT solar charge controller continuously tracks these changes and adjusts accordingly.

The Tracking Process

The controller uses a tracking algorithm to find the maximum power point. The Perturb and Observe algorithm is commonly used, where the controller changes a variable and monitors the effect on another variable. This process happens hundreds of times per second.

Once the controller identifies the maximum power point, it converts the voltage. The device transforms high voltage from panels into lower voltage suitable for battery charging. Consequently, you capture more energy from your solar array.

Mppt 60 Amp Solar Charge Controller

 

Precautions for Using MPPT Charge Controllers

 

Undersizing the Controller

 

Never choose a controller too small for your array. Undersized controllers cannot handle full panel output. This limitation wastes available power and may damage the controller. Always size controllers with adequate capacity plus safety margin.

01

Incorrect Battery Settings

 

Using wrong battery type settings damages batteries and reduces lifespan. Lithium batteries particularly require precise charging parameters. Double-check manufacturer specifications and program controllers accordingly.

02

Poor Ventilation

 

Inadequate cooling causes controllers to overheat and reduce output. Some units shut down entirely when overheated. Install controllers where air circulates freely maintaining optimal operating temperature.

03

Mixing Old and New Batteries

Adding new batteries to old ones in battery banks creates problems. Mismatched batteries charge and discharge at different rates. This inconsistency confuses controllers and degrades overall performance. Replace battery banks completely when upgrading.

04

Maintenance and Troubleshooting

Regular maintenance keeps your MPPT solar charge controller operating efficiently. Simple checks prevent problems and extend equipment life.

05

 

Delivery Information

 

 

We offer flexible shipping options including air freight for urgent orders and sea freight for bulk shipments. All load pin load cells are securely packaged with protective materials to ensure safe and damage-free delivery worldwide.

 

 

FAQ

 

Q: What does MPPT stand for in solar controllers?

A: MPPT stands for Maximum Power Point Tracking. This technology continuously monitors solar panel output finding the optimal voltage and current combination. The controller adjusts electrical characteristics maximizing power transfer to batteries.

Q: Can I use an MPPT controller with PWM panels?

A: Yes, MPPT controllers work with any solar panels. However, the term PWM panels is somewhat misleading. Panels themselves are neither PWM nor MPPT. The controller type determines the charging method. MPPT controllers provide better performance regardless of panel specifications.

Q: How much more efficient is MPPT compared to PWM?

A: MPPT controllers typically deliver up to 30 percent efficiency increase over PWM controllers on properly sized systems. Actual gains depend on system configuration, weather conditions, and battery state. Cold weather and low battery charges show the greatest improvements.

Q: Do I need MPPT for small solar systems?

A: Small systems under 200 watts may not justify MPPT cost. PWM controllers work adequately for basic applications like maintaining vehicle batteries. However, MPPT benefits appear even in smaller systems when panels and batteries operate at different voltages.

Q: Can MPPT controllers work without batteries?

A: No, MPPT controllers require batteries in the system. They need stable voltage reference from batteries to operate correctly. Grid-tie systems without batteries use different inverter technology. Never operate MPPT controllers without proper battery connections.

Q: How do I know if my MPPT controller is working properly?

A: Monitor the display showing charging current and voltage. During sunny conditions, you should see significant charging current. Compare actual power output against expected values based on panel ratings. Most controllers show cumulative energy production tracking performance over time.

Q: What size MPPT controller do I need for 400 watts of panels?

A: For a 400-watt array charging 12-volt batteries, divide 400 by 12 equaling approximately 33 amps. Choose a 40-amp or 50-amp controller providing adequate safety margin. Higher voltage battery systems require proportionally lower amperage controllers.

Q: Can I connect multiple MPPT controllers to one battery bank?

A: Yes, multiple controllers can charge the same battery bank. Connect each controller directly to the battery bank separately. This configuration allows expanding solar capacity beyond single controller limits. Ensure combined charging current stays within battery specifications.

With over 15 years' experience, we are one of the most reliable mppt charge controllers manufacturers and suppliers in China. Please feel free to wholesale bulk cheap mppt charge controllers from our factory. All customized products are with high quality and low price.

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