MPPT 20A Programmable Solar Charge Controller 12/24V for RV & Marine MC2420 for AGM Gel Lithium SiO2 Carbon Foam Flooded Batteries


20A MPPT Charge Controller MC2420N10

In stock (can be backordered)


MPPT 20A Programmable Solar Charge Controller 12V / 24V for RV & Marine MC2420

  • Small unit – no onboard display.
  • may be paired with a BT2 Bluetooth unit to see display on your smart phone (not included)
  • may be paired with a RM6 remote display unit (not included)
  • Use with Lead Acid, Flooded, Gel, AGM, SiO2, Carbon Foam and Lithium Batteries, charge settings are programmable, using a remote display or Bluetooth unit.

With industry-leading PowerCatcher MPPT technology, the MC series solar charge controller enables maximum energy tracking for solar panel. This technology allows the controller to quickly and accurately track the maximum power point of PV array in any environment, obtain the maximum energy of solar panel in real time, and significantly increase energy utilization efficiency of the solar energy system.
This product can be connected to an external LCD screen or Bluetooth communication module and PC Upper Computer for dynamic display of operating status, operating parameters, controller logs, control parameters, etc. The user can look up various parameters and can modify the control parameters as needed to suit different system requirements.
The controller adopts standard Modbus communication protocol, which is convenient for the user to view and modify the parameters of the system. Meanwhile, the company provides free monitoring software that can maximize the convenience for users to meet different needs of remote monitoring.
The controller provides overall electronic fault self-test and powerful electronic protection functions which minimize components damage due to installation error and system failure.

20A charge controller 12V / 24V  : Max PV Input: 260W/12V,  520W/24V

◆ A built-in maximum power point tracking (MPPT) algorithm can significantly increase energy utilization efficiency of the photovoltaic system, which is about 15% to 20%higher than traditional PWM charging.
◆ It provides an active charging voltage regulation feature. At battery open circuit or lithium battery BMS overcharge protection, the controller battery terminal will output the rated charging voltage value.
◆ MPPT tracking efficiency is up to 99.9%.
◆ Due to an advanced digital power technology, the circuit energy conversion efficiency is as high as 98%.
◆ Available in multiple battery types and support charging procedures of various types of batteries such as lithium battery, colloidal battery, sealed battery, vented battery, lithium battery, etc.
◆ A current-limited charging mode is available. When the power of solar panel is too large and the charging current is higher than the rated valve, the controller automatically reduces the charging power so that the solar panel can operate at the rated charging current.
◆ Support automatic identification of lead-acid battery voltage.
◆ External LCD screen or Bluetooth module can be connected for viewing of equipment operating data and status, and modification of controller parameters is supported.
◆ Support standard Modbus protocol to meet communication needs in different occasions.
◆ Built-in over-temperature protection mechanism ensures that when temperature exceeds the set value of the device, the charging current decreases linearly with the temperature, thereby reducing the temperature rise of controller and avoiding high temperature damage.
◆ Temperature compensation and automatic adjustment of charge and discharge parameters help to improve battery life.
◆ Solar panel short circuit protection, battery open circuit protection and TVS lightening protection etc.

Remote Meter (RM6) and Bluetooth (BT-2) Available.

The controller setting for the type of battery can be changed without the use of a Bluetooth meter (BT-2) or the remote display (RM-6). Use a paperclip to hold in the set button until the battery light starts to flash, then press the set button until the colour indicates the type of battery you are using. For custom charge settings, you need to use the BT-2 or the RM6, but the basic battery type choice does not require the remote. This controller will sense if your battery bank is 12 or 24V.

RM6 with the charge controller:

RM6 Remote Meter

BT2 with the charge controller:

BT2 Bluetooth Adapter

To connect your battery with the charge controller:

Additional information

Solar System Voltage

12V / 24V

Max Charging Current


PV Input Voltage


Max PV Input

260W/12V, 520W/24V

Battery Voltage

92V(25℃);100V(Lowest ambient temperature)

Max PP Voltage Range

(Battery voltage 2V) ~ 72V

MPPT Tracking Efficiency


Conversion Efficiency

≤ 98%

Enclosure Protection







3 Year Manufacturer Warranty

Max wire diameter

10/7 mm²/AWG)


SRNE MC2420N10

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