Product overview This solar charge controller is designed for use with photovoltaic panels and solar generators. It provides regulated charging and discharging with clear LCD monitoring, dual USB output for device charging, and automatic battery type and voltage recognition for safe, efficient operation. Install on a flat, well ventilated surface. Key benefits Reliable charging control: Manages solar input and battery charging to reduce overcharge and overdischarge risks. Simple user control: Built in LCD display shows charging and discharging status for easy monitoring and adjustment. Versatile compatibility: Automatically recognizes 12V and 24V battery systems and supports multiple battery chemistries for flexible deployment. Convenient device charging: Dual USB ports provide on demand charging for phones, tablets, and USB powered equipment. Space efficient installation: Compact controller is intended for mounting on a flat, ventilated surface to ensure steady operation. Main features Photovoltaic panel only: Designed to be connected exclusively to photovoltaic panels. Voltage auto detection: Automatic identification of 12V and 24V battery systems. Battery type modes: Selectable battery chemistry modes B1, B2, B3 corresponding to standard lead acid battery, lithium ion battery, and lithium iron phosphate battery. Dual USB outputs: Two USB ports allow charging of portable electronics directly from the system. LCD display: Real time readout for charge status, discharge status, and basic settings to simplify monitoring and configuration. Intended application: Optimized for use with solar generators and standalone PV systems to improve overall conversion and system responsiveness. Compatibility and installation notes Only for use with photovoltaic panels. Suitable for battery systems operating at 12V or 24V with automatic detection. Supports lead acid, lithium ion, and lithium iron phosphate chemistries via mode B1, B2, and B3. Mount on a flat, ventilated surface to maintain cooling and reliable performance. Performance and reliability Provides regulated charge and discharge control with clear LCD feedback to help maintain battery health. Dual USB ports supply convenient low voltage charging for auxiliary devices. Automatic voltage and battery chemistry recognition simplifies setup and reduces configuration errors. Typical use scenarios Off grid cabin or RV: Connect a photovoltaic panel array to the controller to charge a 12V or 24V battery bank, power lights, and provide USB charging for mobile devices. Portable solar generator setup: Integrate the controller into a solar generator system to manage charging from PV panels and display system status on the LCD. Remote equipment power: Use with a standalone PV panel and compatible battery to run monitoring sensors or small DC equipment while offering USB power for maintenance tools. What to consider before buying Ensure connection is only to photovoltaic panels as specified. Provide a flat, ventilated mounting location for the controller. Verify battery chemistry and select the appropriate mode B1, B2, or B3 during setup. This controller is intended to provide straightforward solar charge regulation, clear status display, and convenient USB charging when used with photovoltaic panels and compatible battery systems.