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12V, 24V, 36V, or 48V 30A MPPT
Solar Charge Controller
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12V, 24V, 36V, or 48V 30A MPPT<br>Solar Charge Controller
12V, 24V, 36V, or 48V 30A MPPT Solar Charge Controller
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12V, 24V, 36V, or 48V 30A MPPT

For Flooded, SLA, AGM, Gel, Lead Acid Battery

and LiFePO4 (Lithium) Battery Packs

Solar Charge Controller

With Remote Communication Capability

10.4 * 7.1 * 3.2 in. (266 * 182 * 81 mm)

7.4 Lbs. (3.5 Kg)


3 Year Manufacturer’s Warranty!

Click here for detailed user manual.

Note: This Solar Charge Controller has a unique feature that will allow it to restart a lead-acid battery pack.

Warning: These Charge Controllers CANNOT operate in parallel.

For parallel operations see model ML4860.

These solar charge controllers have a Bluetooth function included to monitor the working status of the controller and its whole system. The BT-1 and BT-2 Bluetooth adapter is used to extend Bluetooth communication function of the Bluetooth module. Mobile phone app can be used for wireless monitoring, parameters setting, and data view.

Quantity Price
1 - 4 $272.00
5 - 9 $260.00
10+ $249.00
Price with Options:

(Discounts, if applicable, will show in the "Shopping Pallet")

Notice: The prices shown are for merchandise and do not include shipping. Shipping will be billed separately.

Prices shown may be changed without notice.

12V, 24V, 36V, or 48V 30A MPPT Solar Charge Controller
Voltage/Power Needed?
12 Volts / 400 Watts
24 Volts / 800 Watts
36 Volts / 1200 Watts
48 Volts / 1600 Watts
Shipping Method?
Delivery Date Needed? Enter it here:

Special Instructions? Enter them here:



·        Advanced double-peak or multiple-peak tracking technology.

·        Built-in algorithm for maximum power tracking to raise energy utilization efficiency of photovoltaic systems.

·        Charging efficiency 15%-20% higher than traditional PWM solar charge controllers.

·        Combination of multiple tracking algorithms that can track the optimum working point of I-V curve accurately in a very short period of time.

·        MPPT efficiency can be as high as 99.9%

·        Advanced digital power technology, with circuit energy conversion efficiency as high as 98%.

·        Current-limiting charging mode. When the power of a solar panel is too large, and the charging current is greater than rated current, the solar charge controller automatically reduces charging power, thereby making the solar panel work at rated charging current.

·        Automatic identification of battery voltage.

·        LED indicator, buzzer alarm, and liquid crystal display to help users identify system failures.

·        Supports data storage for up to five years.

·        LCD screen display to enable users to view equipment operation data and status and modify controller parameters at the same time.

·        Standard Modbus protocol that meets communication needs on different occasions.

·        Built-in mechanism for over-temperature protection. When the temperature exceeds the preset value, the charging current falls linearly with temperature, therefore slowing down the rise of controller temperature and avoiding controller damage from high temperatures.

·        External battery voltage sampling function to prevent line loss from affecting external battery voltage sampling and to ensure greater preciseness of control parameters.

·        Temperature compensation functions to automatically adjust charging and discharging parameters to extend battery service life.

·        Many protection functions.

·        TVS lightning protection.

Technical Specifications:

·        Battery Voltage/Power: 12V/400W, 24V/800W, 36V/1200W, or 48V/1600W

·        Max Solar Input Voltage: 150V

·        Rated Charge Current: 30A

·        Rated Discharge Current: 20A

·        IP Rating: IP32

·        Conversion Efficiency: <98%

·        MPPT Tracking Efficiency: >99%

·        Working Temperature: -31F~113F (-35C~+45C)

Mobile Bluetooth APP Wireless Monitoring Features:


·        The controller supports a built-in Bluetooth module or external adapter, which is plug and play and easy to set up.

·        Bluetooth module applies a Bluetooth 4.0 low energy technology, providing rapid communication and strong anti-interference capability.

·        Communication distance is up to 15 meters (49 ft).

·        The rich data display and setting functions meet the wireless monitoring requirements for solar controller data.


Setting Steps:


1. Press SELECT and ENTER buttons at the same time to enter the parallel mode setting interface.

2. Press the ENTER button for 5s until the number starts flashing. Then, press the SELECT button and the ENTER button to add or subtract the communication address number.

3. After setting the communication address (the number stops flashing), press the ENTER button to set the communication mode.  C represents "normal communication mode", and P represents "parallel mode".


BT-1 and BT-2 Features:


·        Adds wireless monitoring function onto the solar charge controller.

·        Supports mobile phone app, plug and play, with simple settings.

·        High performance and low power consumption of the Bluetooth special chip.

·        Adopts Bluetooth 4.0 and BLE technology, has the characteristics of rapid communication and strong anti-jamming capability.

·        Without external power supply (power supply directly by the communication port).


BT-1 and BT-2 Specifications:


·        Input Voltage: 5V-12V

·        Stand-by Power Consumption: 0.04W

·        Run Power Consumption: 0.05W

·        Communication Distance: <15m (49 ft)

·        Serial Port Baud Rate: Fixed baud rate 9600bps

·        Communication Methods: RS232 (BT-1) and TTL (BT-2)

·        Interface Type: RJ12 (BT-1) and PH2.0 (BT-2)

·        Connecting Line: Standard Ethernet Cable (parallel line)

·        Size: 2.6*2.0*0.61 in. (66*51*15.5mm) (BT-1) or 2.6*1.4*0.61 in. (67.3*36*15.5mm) (BT-2)

·        Installation Dimension: 2.3*0.47 in. (57.8*12mm) (BT-1) or 2.28*0.47 in. (57.8*12mm) (BT-2)

·        Operating Temperature: -4F~167F (-20C~75C)

·        Level of Protection: IP67

·        Net Weight: 4.2 oz. (120g)



There are 2 ways to get an exact quote for the base shipping for your 12V, 24V, 36V, or 48V 20A MPPT solar charge controller order.

1.  Contact us at (801) 566-5678 9am-5pm Monday-Friday or email [email protected] or go through our Contact Us page




2. Place your order by clicking in the shopping pallet “Proceed To Checkout”

a. Enter your information so we can get you a shipping quote

b. Select the “Shipping Method” of preference

c. Confirm the “Choose one payment method” has “Shipping Quote Request” selected

d. Click the “Check Out” button

e. You’ll receive a confirmation email of your request, as will we


We’ll research the exact shipping cost and send you an invoice to your PayPal or email or you can add it to your pallet in $1 Shipping Increments for your 12V, 24V, 36V, or 48V 20A MPPT solar charge controller order.



Si se encuentra en un país hispanohablante (América Latina / España) y desea comprar este producto, deberá ponerse en contacto con Reid. Es un proceso realmente simple que consiste en enviar información de envío (dirección y fecha de llegada deseada) @ [email protected].


Investigaremos el costo de envío exacto y le enviaremos una factura por su producto.

Quantity discounts show in the “Shopping Pallet”.

We love to meet or beat any competitor’s price!


Higher volume discounts, price matching or questions?

Contact Carl, our resident specialist.

9am-9pm Mon-Sat MDT

(801) 566-5678

or email

[email protected]


[email protected]

or through our Contact Us page

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