20A MPPT Solar Charge Controller 12V 24V Auto with LCD Max 100V PV Input A compact, efficient solar regulator designed for small offgrid and mobile solar systems. This MPPT controller maximizes energy harvest from PV panels, manages battery charging for multiple battery chemistries, and provides clear status information on an integrated LCD. Why you need it Improved charging efficiency: MPPT tracking finds the panels optimum operating point to capture more energy than traditional PWM controllers, increasing usable charging current under varying sunlight. Flexible system compatibility: Automatically detects and operates on 12V or 24V systems to fit common small solar setups. Broad PV input range: Accepts PV array opencircuit voltages up to 100V, allowing use with highervoltage panel configurations for lower wiring losses. Battery chemistry support: Works with AGM, lead acid, gel, and lithium batteries using appropriate charging profiles to maintain battery health and extend service life. Clear monitoring and control: Builtin LCD displays system voltage, charging current, battery state, and fault notifications for straightforward setup and troubleshooting. Key specifications and functions Maximum charging current: 20A System voltage: 12V / 24V autodetection Maximum PV input voltage: 100V Charging method: MPPT solar charge regulation with batteryspecific charge profiles User interface: LCD for realtime status and settings Core functions: solar current regulation, battery voltage management, automatic system voltage sensing, basic fault indication What makes it stand out MPPT algorithm optimizes energy extraction across changing light and temperature conditions without requiring manual tuning. PV input headroom lets you use multiple panels in series for smaller cable runs and reduced voltage drop. Multichemistry compatibility simplifies use across different battery types commonly found in small solar installations. Practical LCD feedback reduces guesswork during installation and daily operation. Practical use scenarios Weekend camper or RV: Pair with a small PV array to maintain a 12V house battery bank for lighting, refrigeration, and electronics while parked or traveling. Offgrid cabin or shed: Charge a 12V or 24V battery bank from roofmounted panels to power LED lighting, a water pump, or charging ports for tools and devices. Remote equipment or monitoring station: Provide regulated charging for lithium or leadacid backup batteries that run communication gear, sensors, or controllers. Installation and compatibility notes Designed for 12V and 24V DC battery systems and compatible with AGM, lead acid, gel, and lithium battery chemistries when configured appropriately. Ensure your PV array opencircuit voltage does not exceed 100V. Match battery capacity and PV array size to the 20A maximum charging current for safe, reliable operation. Reliable charging control for small solar systems This MPPT solar charge controller offers a practical balance of performance and flexibility for small offgrid and mobile solar applications. It optimizes solar input, supports common battery types, and provides clear system feedback through the LCD to help maintain battery health and consistent power availability.