{"id":46393,"date":"2025-01-08T02:05:42","date_gmt":"2025-01-08T02:05:42","guid":{"rendered":"https:\/\/www.vevor.com\/diy-ideas\/product\/vevor-30a-mppt-solar-charge-controller-12v-24v-auto-dc-input-manual\/"},"modified":"2025-05-29T10:17:41","modified_gmt":"2025-05-29T10:17:41","slug":"vevor-30a-mppt-solar-charge-controller-12v-24v-auto-dc-input-manual","status":"publish","type":"product","link":"https:\/\/www.vevor.com\/diy-ideas\/product\/vevor-30a-mppt-solar-charge-controller-12v-24v-auto-dc-input-manual\/","title":{"rendered":"VEVOR 30A MPPT Solar Charge Controller, 12V \/ 24V Auto DC Input Manual"},"content":{"rendered":"<p>Discover the ultimate guide to optimizing your <a href=\"https:\/\/www.vevor.com\/category-c_106905\/product-p_010492501567\">VEVOR 30A MPPT Solar Charge Controller<\/a> with our comprehensive product manual download. Designed for both beginners and experienced users, this manual provides step-by-step instructions for setup, troubleshooting, and maximizing the efficiency of your solar panel system.<\/p>\n<p>With a user-friendly layout, detailed diagrams, and expert tips, you can effortlessly manage your 12V or 24V auto DC input solar panel regulator charger.<\/p>\n<p>This guide covers everything from initial installation to advanced settings, ensuring your system runs at a 98% charging efficiency for various battery types, including Sealed (AGM), Gel, Flooded, and Lithium. Additionally, learn how to integrate and optimize the Bluetooth module for seamless monitoring and control.<\/p>\n<p>Download now to unlock the full potential of your solar charge controller and enjoy uninterrupted, efficient solar power.<\/p>\n<h2>Solar Charge Controller Manual<\/h2>\n<p><strong>CONTROLLER MC2430N10-B\/ MC2440N10-B\/ MC2450N10-B<\/strong><\/p>\n<p><strong><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-52394\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/mppt-300x168.png\" alt=\"\" width=\"600\" height=\"335\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/mppt-300x168.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/mppt-768x429.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/mppt-600x335.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/mppt-64x36.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/mppt.png!webp 813w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/strong><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-52395\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/mppt-solar-charge-controller-300x160.png\" alt=\"\" width=\"600\" height=\"321\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/mppt-solar-charge-controller-300x160.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/mppt-solar-charge-controller-768x411.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/mppt-solar-charge-controller-600x321.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/mppt-solar-charge-controller-64x34.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/mppt-solar-charge-controller.png!webp 840w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h2>SAFETY INSTRUCTIONS<\/h2>\n<ol>\n<li>The applicable voltage of the controller exceeds the safety voltage for the human body, so please read the manual carefully before use and operate the controller only after safety operation training has been completed.<\/li>\n<li>No parts inside the controller need to be maintained or repaired. The user shall not disassemble or repair the controller.<\/li>\n<li>Install the controller indoors to prevent component exposure and water from entering the controller.<\/li>\n<li>Please install the controller in a well-ventilated place to prevent the heat sink from overheating.<\/li>\n<li>A proper fuse or circuit breaker outside the controller is recommended.<\/li>\n<li>Be sure to disconnect the wiring of PV array and the fuse or circuit breaker near the battery terminal before installation and wiring adjustment of the controller.<\/li>\n<li>Check that all wiring is tight after installation to avoid danger of heat accumulation due to poor connections.<\/li>\n<\/ol>\n<h2>1. INTRODUCTION<\/h2>\n<h3>1.1 Overview<\/h3>\n<ul>\n<li>With industry-leading Power Catcher MPPT technology, the MC series solar charge controller enables maximum energy tracking for solar panels. 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 panels in real time, and significantly increase the energy utilization efficiency of the solar energy system.<\/li>\n<li>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.<\/li>\n<li>The controller adopts a standard Modbus communication protocol, which makes it convenient for the user to view and modify the system&#8217;s parameters. Meanwhile, the company provides free monitoring software that can maximize users&#8217; convenience and meet different remote monitoring needs.<\/li>\n<li>The controller provides an overall electronic fault self-test and powerful electronic protection functions, which minimize component damage due to installation error and system failure.<\/li>\n<\/ul>\n<h3>1.2 Solar Charge Controller Features<\/h3>\n<ul>\n<li>Power Catcher&#8217;s maximum power point tracking technology allows the controller to track the maximum power point of solar panels even in a complex environment. Compared with the traditional MPPT tracking technology, it boasts faster response speed and higher tracking efficiency.<\/li>\n<li>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.<\/li>\n<li>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.<\/li>\n<li>MPPT tracking efficiency is up to 99.9%.<\/li>\n<li>Due to advanced digital power technology, the circuit energy conversion efficiency is as high as 98%.<\/li>\n<li>Available in multiple battery types, it supports charging procedures for various types of batteries, such as lithium, colloidal, sealed, vented, etc.<\/li>\n<li>A current-limited charging mode is available. When the solar panel&#8217;s power is too large and the charging current is higher than the rated value, the controller automatically reduces the charging power so that the solar panel can operate at the rated charging current.<\/li>\n<li>Support automatic identification of lead-acid battery voltage.<\/li>\n<li>An external LCD screen or Bluetooth module can be connected to view equipment operating data and status, and modification of controller parameters is supported.<\/li>\n<li>An optional built-in Bluetooth function can view the equipment&#8217;s running data and status, and support changing the controller parameters.<\/li>\n<li>An optional built-in CAN function can view the equipment&#8217;s running data and status and support controller parameter changes.<\/li>\n<li>Support standard Modbus protocol to meet communication needs in different occasions.<\/li>\n<li>The built-in over-temperature protection mechanism ensures that when the temperature exceeds the set value of the device, the charging current decreases linearly with the temperature, thereby reducing the controller&#8217;s temperature rise and avoiding high-temperature damage.<\/li>\n<li>Temperature compensation and automatic charge and discharge parameter adjustment help improve battery life.<\/li>\n<li>Solar panel short circuit protection, battery open circuit protection, TVS lightning protection, etc.<\/li>\n<\/ul>\n<h3>1.3 Appearance<\/h3>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-52397\" style=\"font-weight: inherit\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/appearance-300x270.png\" alt=\"\" width=\"600\" height=\"540\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/appearance-300x270.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/appearance-768x691.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/appearance-600x540.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/appearance-64x58.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/appearance.png!webp 956w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>1.4 MPPT Technology Introduction<\/h3>\n<p>The Maximum Power Point Tracking (MPPT for short) system is an advanced charging technology that enables the solar panel tooutputmore energy by adjusting operating conditions of theelectrical module. Due to the non-linear characteristics of solar arrays,there is a maximum energy output point (maximum power point) of an array on its curve.<\/p>\n<p>Traditional controller (switch charging technology and PWM charging technology) fails to maintain battery charging at this point; therefore, the solar panel&#8217;s maximum energy cannot be obtained. However, the solar charge controller with MPPT control technology can track the array&#8217;s maximum power point at all times to obtain the maximum energy to charge the battery.<\/p>\n<p>Take a 12V system as an example. The solar panel&#8217;s peak voltage (Vpp) is about 17V, while the battery voltage is about 12V.<\/p>\n<p>Generally, when the controller is charging the battery, the solar panel&#8217;s voltage is about 12V and does not fully contribute to its maximum power. However, the MPPT controller can overcome this problem. It constantly adjusts the solar panel&#8217;s input voltage and current to achieve the maximum input power.<\/p>\n<p>Compared to the traditional PWM controller, the MPPT controller can provide the solar panel&#8217;s maximum power and thus can provide a larger charging current. The MPPT controller can generally improve energy utilisation by 15% -20% compared with the PWM controller.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52396\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/solar-panel-output-1-300x207.png\" alt=\"\" width=\"600\" height=\"415\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/solar-panel-output-1-300x207.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/solar-panel-output-1-1024x708.png!webp 1024w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/solar-panel-output-1-768x531.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/solar-panel-output-1-600x415.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/solar-panel-output-1-64x44.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/solar-panel-output-1.png!webp 1029w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>In addition, due to the difference in ambient temperature and light conditions, the maximum power point often changes. The MPPT controller can adjust parameters according to different situations from time to time to keep the system near its maximum working point.<\/p>\n<p>The whole process is fully automatic and does not require any user adjustments.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52398\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/output-vs-temperature-208x300.png\" alt=\"\" width=\"600\" height=\"865\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/output-vs-temperature-208x300.png!webp 208w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/output-vs-temperature-64x92.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/output-vs-temperature.png!webp 530w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>1.5 Charging Stage Introductions<\/h3>\n<p>As one of the charging stages, MPPT cannot be used alone. Combining boost, floating charge, equalizing charge, and other charging methods is usually required to complete the battery charging process. A complete charging process includes Quick, holding, and floating charges.<\/p>\n<p>The charging curve is shown below:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52399\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/fig-1-5-300x264.png\" alt=\"\" width=\"600\" height=\"528\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/fig-1-5-300x264.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/fig-1-5-768x675.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/fig-1-5-600x528.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/fig-1-5-64x56.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/fig-1-5.png!webp 780w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h4>a) Quick charge<\/h4>\n<p>In the quick charge stage, the battery voltage has not yet reached the set value of full charge voltage (i.e. equalizing\/boost charge voltage), and the controller will perform MPPT charging, which will provide maximum solar energy to charge the battery. When the battery voltage reaches the pre-set value, constant voltage charge will start.<\/p>\n<h4>b) Holding charge<\/h4>\n<p>When the battery voltage reaches the set value of holding voltage, the controller will perform constant voltage charging. This process will no longer include MPPT charging, and the charging current will gradually decrease with time. Holding charge comes in two stages, i.e. equalizing charge and boost charge. The two stages are conducted without repetition, in which the equalizing charge is started once every 30 days.<\/p>\n<ul>\n<li><strong>Boost Charging<\/strong><\/li>\n<\/ul>\n<p>The default duration of the boost charge is 2 hours. The customer can also adjust the holding time and the pre-set value of boost voltage point according to actual needs. The system will switch to floating charge when the duration reaches this value.<\/p>\n<ul>\n<li><strong>Equalizing charging<\/strong><\/li>\n<\/ul>\n<p>Warning: Risk of explosion!<\/p>\n<p>Equalizing vented lead-acid batteries may generate explosive gases. So, the battery compartment must be well ventilated. Caution: Damage to the device!<br \/>\nEqualization can increase the battery voltage to levels that may damage sensitive DC loads. It is necessary to verify that the allowable input voltage of all system loads is greater than the equalizing charge set value.<\/p>\n<p><strong>Caution: Damage to the device!<\/strong><\/p>\n<p>Overcharging and excessive gas evolution may damage the battery plates and cause active substances on the battery plate to come off. Equalizing charge may cause damage if the voltage is too high or the time is too long. Please carefully check the specific requirements of the battery used in the system.<\/p>\n<p>Certain types of battery benefit from regular equalizing charge, which can stir electrolytes, balance battery voltage, and complete chemical reactions.<\/p>\n<p>Equalizing charge increases the battery voltage above the standard voltage, causing vaporization of the battery electrolyte. If it is detected that the controller automatically controls the next stage, which is the equalizing charge, the equalizing charge will last for 120 minutes(default). The equalizing and boost charges are not repeated in a full charge process to avoid too much gas evolution or battery overheating.<\/p>\n<ol>\n<li>When the system cannot continuously stabilize the battery voltage at a constant voltage due to the influence of the installation environment or load, the controller will accumulate time until the battery voltage reaches the set value. When the accumulated time reaches 3 hours, the system will automatically switch to floating charge.<\/li>\n<li>If the controller clock is not calibrated, the controller will perform regular equalizing charges according to its internal.<\/li>\n<\/ol>\n<h4>Floating charging<\/h4>\n<p>The floating charge is conducted following the holding charge stage, where the controller will reduce the battery voltage by reducing charge current and allowing the battery voltage to remain at the floating charge set value.<\/p>\n<p>During the floating charge stage, the battery is charged at a very low voltage to maintain its full charge state. In this stage, the load can get nearly all solar energy. If the load exceeds the solar panel&#8217;s energy, the controller cannot maintain the battery voltage in the floating charge stage. When the battery voltage is as slow as the recovery charge set point, the system will exit the floating charge stage and re-enter the fast charge stage.<\/p>\n<h2>2. Solar Charge Controller Installation<\/h2>\n<h3>2.1 Installation Precautions<\/h3>\n<p>Be very careful when installing the battery. When installing the vented lead-acid battery, wear protective glasses. Once you touch the battery acid, rinse it with clean water. Avoid placing metal objects near the battery to prevent a battery short circuit.<\/p>\n<p>Acid gas may be generated when the battery is charged.<\/p>\n<p>So, ensure good ventilation. The battery may generate flammable gas. Please keep away from sparks. Avoid direct sunlight and infiltration of rainwater when installing outdoors. Poor connection points and corroded wires may cause extreme heat to melt the wire insulation layer, burn the surrounding materials, and even cause fire. Therefore, it is necessary to ensure that the connectors are tightened and the wires are preferably fixed with a cable tie to avoid loose connectors caused by wire shaking.<\/p>\n<p>The component&#8217;s output voltage may exceed the human body&#8217;s safety voltage in system wiring. So, it is necessary to use insulated tools and ensure that the hands are dry. The battery terminal on the controller can be connected to either a single battery or a pack of batteries. Subsequent instructions in the manual are for a single battery, but it also applies to a battery pack. Observe the safety recommendations of the battery manufacturer. The system connection wires are selected according to the current density of not more than 4A\/mm2. Make the controller grounded.<\/p>\n<h3>2.2 Wiring Specifications<\/h3>\n<p>Wiring and installation must comply with national and local electrical code requirements. PV and battery connection wires must be selected according to the rated current. Refer to the following table for wiring specifications:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52400\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/wiring-specifications-1-300x98.png\" alt=\"\" width=\"600\" height=\"196\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/wiring-specifications-1-300x98.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/wiring-specifications-1-768x251.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/wiring-specifications-1-600x196.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/wiring-specifications-1-64x21.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/wiring-specifications-1.png!webp 956w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>2.3 Installation and Wiring<\/h3>\n<p><strong>Warning:<\/strong><\/p>\n<ul>\n<li>Danger, Explosion! Never install the controller and a vented battery in the same enclosed space! Also, do not install in an enclosed place where battery gas may collect.<\/li>\n<li>Danger, High Voltage! Photovoltaic arrays may generate very high open-circuit voltages. Disconnect the circuit breaker or fuse before wiring, and be very careful during wiring.<\/li>\n<li>When installing the controller, ensure enough air flows through the controller&#8217;s heat sink, leaving at least 150mm above and below the controller to ensure natural convection for heat dissipation. If installed in a closed box, ensure reliable heat dissipation through the box.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52408\" style=\"font-weight: inherit\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/fig-2-1-1-264x300.png\" alt=\"\" width=\"600\" height=\"681\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/fig-2-1-1-264x300.png!webp 264w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/fig-2-1-1-600x681.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/fig-2-1-1-64x73.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/fig-2-1-1.png!webp 736w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><span style=\"font-size: 16px\">\u00a0<\/span><span style=\"font-size: 16px\">\u00a0<\/span><span style=\"font-size: 16px\">\u00a0<\/span><\/p>\n<p><strong>Step 1: Choose an installation location<\/strong><\/p>\n<p>Avoid installing the controller in a place free of direct sunlight, high temperatures, and water, and ensure good<br \/>\nventilation around the controller.<\/p>\n<p><strong>Step 2<\/strong>: Mark the mounting position according to the mounting dimensions of the controller\u2014drill 4 mounting holes of the appropriate size at the four marks. Fix screws into the upper two mounting holes.<\/p>\n<p><strong>Step 3: Fasten the Controller<\/strong><\/p>\n<p>Align the fixing holes of the controller with the two pre-fixed screws and hang the the controller up. And then fix the lower two screws.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52407\" style=\"font-style: inherit;font-weight: inherit\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/fasten-controller-245x300.png\" alt=\"\" width=\"600\" height=\"735\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/fasten-controller-245x300.png!webp 245w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/fasten-controller-64x78.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/fasten-controller.png!webp 494w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>Step 4: wire<\/strong><\/p>\n<p>For installation safety, we recommend a wiring sequence as follows; however, wiring in other sequences instead of this one will not damage the controller.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52406\" style=\"font-style: inherit;font-weight: inherit\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/wire-1-300x197.png\" alt=\"\" width=\"600\" height=\"393\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/wire-1-300x197.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/wire-1-768x504.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/wire-1-600x393.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/wire-1-64x42.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/wire-1.png!webp 906w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>Warning:<\/strong><\/p>\n<ul>\n<li>Electric shock hazards! We strongly recommend connecting a fuse or circuit breaker to the PV array and battery terminal to prevent electric shock hazards during wiring or error operation, and make sure that the fuse or circuit breaker is disconnected before wiring.<\/li>\n<li>High voltage hazards! Photovoltaic arrays may generate very high open-circuit voltages. Disconnect the circuit breaker or fuse before wiring, and be very careful during wiring.<\/li>\n<li>Explosion hazards! If the positive and negative terminals of the battery and the wires connected to them are short-circuited, it may cause a fire or explosion. Please be very careful in operation. Please connect the battery first, and then the solar panel. Please follow the\u201c +\u201d first and \u201c-\u201d next method when wiring.<\/li>\n<\/ul>\n<p>When all wires are connected firmly and reliably, check whether the wiring is proper and whether the polarity is reversed. After confirmation, connect the battery fuse or circuit breaker and observe whether the LED indicator is on. If not, immediately disconnect the fuse or circuit breaker and check whether the wiring is correct.<\/p>\n<p>As the battery is energized correctly, connect the solar panel. If there is sufficient sunlight, the charge indicator of the controller will besteadyonorflash and start to charge the battery.<\/p>\n<p>Warning: When the controller has stopped charging for 10 minutes, reverse polarity of the battery can damage the controller&#8217;s internal components.<\/p>\n<p><strong>Note:<\/strong><\/p>\n<p>1) Note that the battery fuse shall be installed as close as possible to the battery terminal. The recommended distance is not more than 150 mm.<\/p>\n<p>2) The battery temperature is 25\u00b0C (fixed value) when the controller is not connected to a remote temperature sensor.<\/p>\n<h2>3. PRODUCT OPERATION AND DISPLAY<\/h2>\n<h3>3.1 LED Indicators<\/h3>\n<p>There are a total of three indicators on the controller.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52405\" style=\"font-style: inherit;font-weight: inherit\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/led-indicators-1-300x105.png\" alt=\"\" width=\"600\" height=\"210\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/led-indicators-1-300x105.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/led-indicators-1-768x269.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/led-indicators-1-600x210.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/led-indicators-1-64x22.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/led-indicators-1.png!webp 821w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>PV array indicator<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52404\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/pv-array-insicator-300x178.png\" alt=\"\" width=\"600\" height=\"356\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/pv-array-insicator-300x178.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/pv-array-insicator-768x455.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/pv-array-insicator-600x356.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/pv-array-insicator-64x38.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/pv-array-insicator.png!webp 842w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>BAT indicator<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52403\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/bat-indicator-2-300x94.png\" alt=\"\" width=\"600\" height=\"189\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/bat-indicator-2-300x94.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/bat-indicator-2-768x241.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/bat-indicator-2-600x189.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/bat-indicator-2-64x20.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/bat-indicator-2.png!webp 859w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><strong>BAT Type Indication<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52402\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/bat-type-indication-300x108.png\" alt=\"\" width=\"600\" height=\"216\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/bat-type-indication-300x108.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/bat-type-indication-768x276.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/bat-type-indication-600x216.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/bat-type-indication-64x23.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/bat-type-indication.png!webp 785w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>3.2 Keys Operation<\/h3>\n<p>There is a key on the controller, which is used in conjunction with the battery type indicator to select battery type. The specific operation mode is as follows:<\/p>\n<p>Press and hold the key for 8 seconds in the current operating state. The battery type indicator (the color displayed is that of the previously saved battery type) starts to flash (the controller turns off charging and other works and enters an idle state). At this point, each time the key is pressed, the battery type indicator changes to a color that corresponds to a battery type.<\/p>\n<p>After selecting the battery type, press and hold the key for 8 seconds or maintain no operation for 15 seconds. Then, the controller will automatically save the currently set battery type and enter the normal operating mode.<\/p>\n<p>In addition, if you press and hold the key for 20 seconds, the controller will restore the factory default parameters.<\/p>\n<h3>3.3 TTL Communication<\/h3>\n<p>Users can utilize external communication equipment (such as Bluetooth BT-2) or a communication protocol to perform data monitoring, parameter setting, and other operations for the controller via the port. The interface is defined as follows:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52401\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/ttl-communication-1-300x76.png\" alt=\"\" width=\"600\" height=\"153\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/ttl-communication-1-300x76.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/ttl-communication-1-1024x260.png!webp 1024w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/ttl-communication-1-768x195.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/ttl-communication-1-600x153.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/ttl-communication-1-64x16.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/ttl-communication-1.png!webp 1066w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>3.4 CAN communication<\/h3>\n<p>Optional built-in CAN communication function and RV-C protocol.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52409\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/can-communication-1-300x133.png\" alt=\"\" width=\"600\" height=\"266\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/can-communication-1-300x133.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/can-communication-1-768x341.png!webp 768w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/can-communication-1-600x266.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/can-communication-1-64x28.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/can-communication-1.png!webp 894w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h2>4. Solar Charge Controller Protection and Maintenance<\/h2>\n<h3>4.1 Protections<\/h3>\n<ul>\n<li>Waterproofing protection.<\/li>\n<\/ul>\n<p>Rating: IP32<\/p>\n<ul>\n<li>Input power limited protection.<\/li>\n<\/ul>\n<p>When the power of the solar panel is higher than the rated value, the controller will limit the solar panel&#8217;s power within the rated power range to prevent damage by overcurrent, and the controller will enter the current-limiting charge.<\/p>\n<ul>\n<li>Battery reverse polarity protection.<\/li>\n<\/ul>\n<p>If the battery polarity is reversed, the system will not work, but it will not burn out the controller.<\/p>\n<ul>\n<li>PV input end voltage is too high<\/li>\n<\/ul>\n<p>If the voltage at the PV array input end is too high, the controller will automatically shut off the PV input.<\/p>\n<ul>\n<li>PV input end short circuit protection<\/li>\n<\/ul>\n<p>If the voltage at the PV array input end is short-circuited, the controller will turn off charging; after the short circuit is removed, charging will automatically recover.<\/p>\n<ul>\n<li>PV input reverse polarity protection<\/li>\n<\/ul>\n<p>When the polarity of the PV array is reversed, the controller will not be damaged, and regular operation will continue after the wiring error is corrected.<\/p>\n<ul>\n<li>Night reverse charging protection.<\/li>\n<\/ul>\n<p>Prevent battery discharge through the solar panel at night.<\/p>\n<ul>\n<li>TVS lightning protection<\/li>\n<li>Over-temperature protection<\/li>\n<\/ul>\n<p>The charging power will be reduced or stopped when the controller&#8217;s temperature exceeds the set value.<\/p>\n<h3>4.2 System Maintenance<\/h3>\n<ul>\n<li>Inspections are recommended twice a year to maintain the controller&#8217;s best long-term performance.<\/li>\n<li>Make sure the airflow around the controller is not obstructed, and remove any dirt or debris from the heat sink.<\/li>\n<li>Check if the insulation layers of all exposed wires are damaged due to sun exposure, friction with other objects nearby, dry rot, destruction by insects or rodents, etc. If so, it is necessary to repair or replace the wire.<\/li>\n<li>Verify if indicators are consistent with the device operations. Corrective actions should be taken for any malfunctions or error indications if necessary.<\/li>\n<li>Check all wiring terminals for corrosion, insulation damage, signs of high temperature, or burning\/discoloration.<\/li>\n<li>Tighten terminal screws.<\/li>\n<li>Check for dirt, insects nesting, and corrosion, and clean as required.<\/li>\n<li>If the lightning arrester fails, replace it to protect the controller and other user devices from being damaged by lightning operations. Please note to take corrective actions for any malfunctions or error indications if necessary.<\/li>\n<\/ul>\n<p><strong>Warning<\/strong>: Danger, electric shock hazards! Ensure all power supplies to the controller have been disconnected before checking or operating as above.!<\/p>\n<h2>5. Solar Charge Controller Technical Parameters<\/h2>\n<h3>5.1 Electrical parameters<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52414\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/electrical-parameters-2-242x300.png\" alt=\"\" width=\"600\" height=\"745\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/electrical-parameters-2-242x300.png!webp 242w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/electrical-parameters-2-64x79.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/electrical-parameters-2.png!webp 601w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>5.2. Battery type default parameters<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52413\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/battery-default-parameters-300x279.png\" alt=\"\" width=\"600\" height=\"557\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/battery-default-parameters-300x279.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/battery-default-parameters-600x557.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/battery-default-parameters-64x59.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/battery-default-parameters.png!webp 602w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>If a user-defined battery is used, the default voltage parameters of the system are the same as those of the sealed lead-acid battery. The following logic must be followed when you modify battery charge and discharge parameters:<\/p>\n<p>Overvoltage disconnection voltage&gt; charge limit voltage \u2265 equalizing charge voltage \u2265 boost charge voltage \u2265 floating charge voltage&gt; boost charge recovery voltage;<\/p>\n<p>Overvoltage disconnection voltage&gt; Overvoltage disconnection recovery voltage;<\/p>\n<h2>6. Solar Charge Controller Conversion Efficiency Curve<\/h2>\n<h3>6.1 12V System<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52412\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/12v-system-300x153.png\" alt=\"\" width=\"600\" height=\"306\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/12v-system-300x153.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/12v-system-600x306.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/12v-system-64x33.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/12v-system.png!webp 762w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h3>6.2 24V System<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52411\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/24v-system-1-300x162.png\" alt=\"\" width=\"600\" height=\"325\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/24v-system-1-300x162.png!webp 300w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/24v-system-1-600x325.png!webp 600w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/24v-system-1-64x35.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/24v-system-1.png!webp 759w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h2>7. Solar Charge Controller Product Dimensions<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-52410\" src=\"https:\/\/diy-ideas.oss-accelerate.aliyuncs.com\/wp-content\/uploads\/2025\/01\/product-dimensions-2-220x300.png\" alt=\"\" width=\"600\" height=\"818\" srcset=\"https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/product-dimensions-2-220x300.png!webp 220w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/product-dimensions-2-64x87.png!webp 64w, https:\/\/i.vevor.net\/wp-content\/uploads\/2025\/01\/product-dimensions-2.png!webp 562w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<div id=\"vevor-goods-card-container_1\"><h2>Recommended For Your Project<\/h2><\/div>\n<p>&nbsp;<\/p>\n<a href=\"https:\/\/d2v0huudrf11kh.cloudfront.net\/vevor-center-goods\/MC24_1687846134115.pdf\" class=\"download-link\" title=\"VEVOR 30A MPPT Solar Charge Controller, 12V \/ 24V Auto DC Input Manual\" id=\"download-link-46405\" target=\"_blank\" data-redirect=\"false\" rel=\"nofollow\" data-e-disable-page-transition=\"true\" download=\"MC24_1687846134115.pdf\" >VEVOR 30A MPPT Solar Charge Controller, 12V \/ 24V Auto DC Input Manual<\/a>\n","protected":false},"excerpt":{"rendered":"<p><strong>Efficient Charging:<\/strong> Utilizing advanced MPPT technology, surpassing traditional PWM charging technology by 15-30%, and achieving an ideal conversion efficiency of up to 98%. This means faster charging times, higher energy utilization, and longer-lasting operation for your devices.<br \/>\n<strong>Versatile Compatibility:<\/strong> Suitable for various environments and devices, from home solar power systems to mobile photovoltaic systems. The solar charge controller can handle charging currents of up to 30A and supports a maximum solar panel power of 12V 400W \/ 24V 800W. It&#8217;s compatible with various common deep-cycle sealed batteries (AGM), gel batteries, flood batteries, and lithium batteries.<br \/>\n<strong>Easy to Use &amp; Control:<\/strong> Equipped with a built-in Bluetooth module, allowing remote monitoring of important data for user convenience. The mppt solar controller helps users easily monitor and adjust the device&#8217;s operating status. Additionally, it comes with a TTL communication interface, supporting the Modbus communication protocol for versatile functionality expansion and meeting various communication needs.<br \/>\n<strong>High Stability:<\/strong> Automatic adjustment algorithms and support for current-limiting charging mode ensure stable operation even in extreme conditions, such as high temperatures up to 50\u00b0C (122\u00b0F) or low temperatures down to -20\u00b0C (-4\u00b0F), as well as during high charging power situations.<br \/>\n<strong>Enhanced Security:<\/strong> Offers all-around electronic protection features, including battery reverse protection, PV reverse protection, PV short-circuit protection, overcurrent protection during charging, and TVS lightning protection. These features ensure the security and long-term use of the device.<\/p>\n","protected":false},"featured_media":46392,"comment_status":"open","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[6786],"product_tag":[],"class_list":{"0":"post-46393","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-power-tools-manual","7":"desktop-align-left","8":"tablet-align-left","9":"mobile-align-left","11":"first","12":"instock","13":"downloadable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.3 (Yoast SEO v25.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Solar Charge Controller Manual, VEVOR 30A MPPT, 12V \/ 24V<\/title>\n<meta name=\"description\" content=\"Download the VEVOR 30A MPPT Solar Charge Controller manual for easy setup, troubleshooting, and optimization. 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