{"product_id":"mppt-solar-charge-controller-40a-30a-20a-battery-regulator-12v-24v-power-charger","title":"MPPT Solar Charge Controller 20A\/30A\/40A Battery Regulator 12V\/24V Auto, Max PV Input 100V, RS232","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThis MPPT solar charge controller is designed for off-grid PV systems and supports 12V\/24VDC auto system voltage with 20A, 30A, or 40A charging current options. It monitors solar output and tracks the highest voltage\/current (VI) in real time to charge batteries at maximum power, coordinating operation between the solar panel, battery, and load.\u003c\/p\u003e\u003cp\u003eAn LCD interface supports dynamic display of operating status, parameters, logs, and control settings, with keypad control for parameter checking and adjustment. The controller supports standard Modbus communication protocol for parameter monitoring and configuration, and includes electronic fault self-detection and protection functions to reduce risk from installation errors or system faults.\u003c\/p\u003e\u003cp\u003eFor selection support or system matching advice, contact customer service at \u003ca href=\"https:\/\/tsolar.top\/\"\u003ehttps:\/\/tsolar.top\/\u003c\/a\u003e or service@tsolar.top.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMPPT algorithm improves PV energy utilization; charging efficiency stated as 15% to 20% higher than conventional PWM.\u003c\/li\u003e\n\u003cli\u003eMPPT tracking efficiency: stated as up to 99.9%; specification table lists \u0026gt; 99%.\u003c\/li\u003e\n\u003cli\u003eConversion efficiency: ≤ 98% (advanced digital power supply technology).\u003c\/li\u003e\n\u003cli\u003eCharging program options for gel, sealed, open, and lithium batteries.\u003c\/li\u003e\n\u003cli\u003eLCD screen plus LED fault indicators for fault identification; abnormality information display supported.\u003c\/li\u003e\n\u003cli\u003eHistorical data storage up to 1 year.\u003c\/li\u003e\n\u003cli\u003eOver-temperature protection: charging current decreases linearly with temperature when above a set value.\u003c\/li\u003e\n\u003cli\u003eTemperature compensation function to automatically adjust charging\/discharging parameters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel (rated charging current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20A\u003c\/td\u003e\n\u003ctd\u003e30A\u003c\/td\u003e\n\u003ctd\u003e40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e12V\/24V Auto\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNo-load loss\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e0.7 W to 1.2W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e9 to 35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. solar input voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e100V (25°C), 90V (-25°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. power point voltage range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eBattery voltage +2V to 75V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated load current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e20A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. capacitive load capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e10000uF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. photovoltaic system input power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e260W\/ 12V; 520W\/ 24V\u003c\/td\u003e\n\u003ctd\u003e400W\/ 12V; 800W\/ 24V\u003c\/td\u003e\n\u003ctd\u003e550W\/ 12V; 1100W\/ 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConversion efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e≤ 98%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMPPT tracking efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e\u0026gt; 99%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature compensation factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e-3.0mV\/ °C\/ 2V (default)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e-35°C to +45°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection degree\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eIP32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.4kg\u003c\/td\u003e\n\u003ctd\u003e2kg\u003c\/td\u003e\n\u003ctd\u003e2kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eRS232\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAltitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003e≤ 3000m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e210*151*59.5 mm\u003c\/td\u003e\n\u003ctd\u003e238*173*72.5\u003c\/td\u003e\n\u003ctd\u003e238*173*72.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eMeter \/ Display (RM-5)\u003c\/h2\u003e\u003cp\u003eMeter: RM-5, LCD display. The RM-5 uses a 128*64 LCD with numeric and graphical menus, can display up to 10 parameters and states, and supports reading historical data of a certain day.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBLE4.0 for pairing with a mobile app (optional).\u003c\/li\u003e\n\u003cli\u003eTwo indicator lights for controller abnormalities and communication errors.\u003c\/li\u003e\n\u003cli\u003eVoice alarm function (switchable on\/off).\u003c\/li\u003e\n\u003cli\u003eBacklight time setting.\u003c\/li\u003e\n\u003cli\u003eFunctions include live data\/status monitoring, on\/off switching, clearing historical data, and restoring factory settings.\u003c\/li\u003e\n\u003cli\u003eModbus protocol support; standard RJ12 communication interface.\u003c\/li\u003e\n\u003cli\u003eNo external power required: powered via data cable connection to the controller.\u003c\/li\u003e\n\u003cli\u003eOptional Bluetooth-version display unit model: RM-5B.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOff-grid solar photovoltaic systems (panel + battery + DC load coordination)\u003c\/li\u003e\n\u003cli\u003eBattery charging and load control in 12V\/24V systems with MPPT energy harvesting\u003c\/li\u003e\n\u003cli\u003eSystems requiring Modbus\/RS232 monitoring and parameter adjustment\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SolarEpic","offers":[{"title":"40A","offer_id":52208703013138,"sku":"22440-1","price":134.97,"currency_code":"USD","in_stock":true},{"title":"30A","offer_id":52208703045906,"sku":"22440-2","price":120.97,"currency_code":"USD","in_stock":true},{"title":"20A","offer_id":52208703078674,"sku":"22440-3","price":98.98,"currency_code":"USD","in_stock":true},{"title":"Meter RM-5","offer_id":52208703111442,"sku":"22440-4","price":51.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0863\/2860\/6994\/files\/20170731142338_6846.jpg?v=1776764234","url":"https:\/\/tsolar.top\/products\/mppt-solar-charge-controller-40a-30a-20a-battery-regulator-12v-24v-power-charger","provider":"TSolar","version":"1.0","type":"link"}