40A 12V 24V PWM Solar Charge Controller with LCD Display and Dual USB
Control and monitor a small off-grid solar battery setup with this 40A 12V / 24V Pulse Width Modulation solar charge controller.
It is designed for low-voltage solar charging systems using compatible lead-acid batteries, including Open, AGM and Gel battery types. The controller regulates charging from a solar panel to the battery and provides a separate low-voltage load output for direct current loads.
The built-in Liquid Crystal Display shows key charging and discharge information, while the front-panel buttons allow adjustment of settings such as float voltage, low-voltage disconnect, low-voltage reconnect and load timer modes.
Dual USB output is included for convenient charging of small USB-powered devices, with a stated maximum output of 5V / 2A.
This controller is best suited to compact solar projects, camping setups, shed lighting, caravan power systems, battery maintenance setups and other low-voltage direct current solar applications. Key Features
• 40A rated solar charging current
• Compatible with 12V and 24V battery systems
• Automatic 12V / 24V system voltage identification
• 4-stage Pulse Width Modulation charging: Boost, Absorption, Equalisation and Float
• Suitable for lead-acid battery types including Open, AGM and Gel
• Liquid Crystal Display for system status and charging information
• Adjustable float voltage, low-voltage disconnect, low-voltage reconnect and load timer settings
• Dual USB output with stated maximum 5V / 2A output
• Separate terminals for solar panel, battery and load connections
• Built-in protection functions including short-circuit, reverse polarity, overload, overheat and backflow protection
• Low standby current of less than 10mA
• Suitable for dry, protected installations Compatibility
Suitable for:
• 12V lead-acid solar battery systems
• 24V lead-acid solar battery systems
• Open lead-acid batteries
• AGM lead-acid batteries
• Gel lead-acid batteries
• Solar panel to battery charging setups
• Low-voltage direct current load control
• Camping, shed, caravan and small off-grid solar projects
Not suitable for:
• 230V mains wiring
• Grid-tied solar systems
• Household switchboard connection
• Alternating current loads
• Direct connection to mains appliances
• High-voltage solar panel strings
• Lithium batteries unless compatibility is separately confirmed
• Outdoor exposed mounting without a suitable enclosure
• Applications requiring a verified Maximum Power Point Tracking controller Technical Specifications
• Product Type: Pulse Width Modulation solar charge controller
• Rated System Voltage: 12V / 24V direct current
• Voltage Detection: Automatic 12V / 24V identification
• Rated Charging Current: 40A
• Rated Discharge Current: 20A
• Battery Compatibility: Open, AGM and Gel lead-acid batteries
• Charging Stages: Boost, Absorption, Equalisation, Float
• Maximum Photovoltaic Input Voltage: Less than 25V for 12V systems, less than 50V for 24V systems
• Discharge Cut-Off Voltage: 10.7V default
• Discharge Cut-Off Adjustment Range: 9.5V–11V
• Discharge Recovery Voltage: 12.6V default
• Discharge Recovery Adjustment Range: 11.5V–13V
• USB Output: Dual USB output
• USB Rating: Stated maximum 5V / 2A
• Display: Backlit Liquid Crystal Display
• Adjustable Settings: Float voltage, low-voltage disconnect, low-voltage reconnect, load timer
• Standby Current: Less than 10mA
• Operating Temperature: -35°C to 60°C
• Protection Functions: Short-circuit, open-circuit, reverse polarity, overload, backflow, overheat, undervoltage discharge
• Backflow Protection: Dual MOSFET backflow protection
• Energy Memory Function: Charge and discharge current / energy auto memory function
• Internal Material: Electronic components
• Approximate Size: 133 x 70mm
• Installation Location: Dry protected location
• Waterproof Rating: Not specified
• Included Items: 1 x solar panel charge controller, 1 x user manual
• Not Included: Solar panel, battery, inverter, wiring, fuse, circuit breaker, mounting screws, tools
• Product Category: Solar charge controllers
• Applications: Solar lighting, camping power, battery charging Impor