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12V/24V/36V/48V 50A MPPT Solar Charge Controller with LCD display for lead acid and Lithium batteries

SKU MP3745
Original price $370.45 - Original price $370.45
Original price $370.45
$444.95 - $444.95
Current price $444.95
1 Year Warranty

This high current charger uses Maximum Power Point Tracking (MPPT) for maximum efficiency and charge rate. It can charge 12V, 24V, 36V or 48V lead acid (sealed, gel or flooded) or 12V lithium battery banks, and supports 12V solar arrays up to 700W or 24VDC arrays up to 1400W. It is recommended for battery capacities 50Ah and above, and features three timer programs, three stage charging, including constant voltage charging, and a backlit LCD to diplay real-time feedback on battery voltage, load voltage, PV voltage, time, etc. An external temperature probe is also supplied to adjust the float voltage according to the temperature when charging SLA batteries. The integrated Wi-Fi enables you to remotely access the controller using an app on your Smartphone to keep an eye on the system, and two USB ports are provided to charge your USB gadgets. The fanless design is built into a durable case for permanent installation with heavy-duty screw terminals for cabling up to 6AWG. Safety features include over-voltage, low-voltage protection, reverse connection, short-circuit, over-current, and over-temperature protection. 

• Intelligent and optimum MPPT charging algorithm
• Backlit LCD with real-time energy stats, operational and fault message
• Temperature sensor for battery charging compensation
• Low-voltage disconnect/reconnect
• 3-stage charging
• 3 programmable timers
• Backlit LCD screen
• Integrated Wi-Fi
• 2 x USB Ports

Battery Support:
• Sealed, gel or flooded Lead Acid (12V/24V/36V/48V)
• LiFePO4 (12V)

Nominal System Voltage: 12/24/36/48VDC
Rated Current: 12/24V: 50A, 36V: 35A, 48V:25A
Max Input Power: 700W/12V, 1400W/24V
Battery Type: Lead acid (Sealed, Gel, Flooded, AGM, Lithium)
Constant Voltage Charging Voltage:
 Lead-acid: 14.4V/28.8V/43.2V/57.6V
 Lithium: 14.5V
 AGM: 14.6V/29.2V/43.8V/58.4V
Recommended Battery capacity: 50Ah+
Typical Idle Consumption: 160mA max.
Load Recover Voltage: 12~13V/24~26V/36~39V/48~52V

Handy Tip Solar Charge Controllers

Directly connecting a solar panel or array to a battery can be catastrophic as solar panels can output a wide voltage range. As an example, a nominal 12 volt rated panel can output anything up to 22volts during an average sunny day. A solar charge controller between the panel and the battery ensures the battery receives the correct output voltage and current from the panel to minimise the risk of the battery being overcharged or discharging back into the panels. Charge controllers come in a variety of types which give different performance and can be matched to simple recreational applications all the way up to complex high power solar array installations.

SWITCHING: Simple switching controllers connect the panel to the battery when the panel is providing power & the battery is not fully charged. This type of controller is low cost and only good for basic solar equipment setups such as standby lighting, etc. where the panel yield is far higher than the load requires. PWM: Pulse width modulated (PWM) controllers continually apply voltage pulses to the battery whenever the panel is providing sufficient voltage. The pulse width (or duration) is varied by the controller depending on the charge state of the battery to ensure the correct amount of charge is harvested from the panel whenever it is available. As a result, PWMc ontrollers provide a much higher power yield than simple switching controllers.

MPPT: Maximum power point tracking (MPPT) controllers maximize power conversion between the panel output and the battery input by using a DC to DC switchmode power converter. By continuously tracking the panel output and adjusting the converter they yield the maximum amount of power under widely varying solar conditions. MPPT controllers give the best solar system efficiency and improve solar system power yield by a significant percentage. Both PWM and MPPT controllers are available with display panels which allow you to track performance of the solar system. Panel voltage, battery voltage, charging current, and total charge supplied can be easily displayed so you can ensure the system is running correctly. More complex models also include integration functions to remotely control other equipment or be linked into advanced systems.

Solar Charge Controllers and Regulators

Max Solar Panel Array
700W, 1400W
Max PV Open Circuit Voltage
Max Load Current
Max Charging Current
Charge Controller Technology
Maximum Power Point Tracking (MPPT)

DC Voltage Rating

DC Voltage
12V, 24V, 36V, 48V

DC Current Rating

DC current rating

Included USB Charge Output

Total Current Rating
Number of Ports

Low Voltage Power / Vehicle Adaptors

Input Type
Screw Terminal
Input Connection
Output Type
Screw Terminal
Output Connection

Ingress Protection Rating

IP Rating
Dust/Particle Ingress Protection
3 - Objects > 2.5mm, Tools, thick wires etc
Liquid/Moisture Ingress Protection
0 - Not protected

Operating Temperature and Humidity

Operating Temperature

Product Dimensions


Packaged Dimensions

Packaged Volume
Packaged Weight
Packaged Length
Packaged Width
Packaged Height
Warranty: 12 Months