This solar charge controller uses an upgraded 3stage PWM charging algorithm with periodic equalization and overdischarge prevention to reduce battery imbalance and sulfation, extending battery service life. It supports 12V, 24V, and 48V systems and delivers reliable charging control and load management for a range of offgrid applications. Key benefits Extends battery life by reducing imbalance and sulfation through a 3stage PWM charging algorithm with periodic equalization. Protects batteries automatically with temperature compensation and selfadjusting charging parameters. Improves system reliability with builtin protections against overcharge, overdischarge, overload, and short circuit. Smoothly starts largecapacity loads using an advanced load starting method. Simple operation and quick configuration via a dot matrix graphic LCD with backlight and a onebutton human machine interface. Retains user settings with poweroff memory for consistent operation after power interruptions. Main functions and features Charging algorithm: Upgraded 3stage PWM charging with periodic equalization and measures to prevent overdischarge. Voltage compatibility: Designed for use with 12V, 24V, and 48V battery systems. Temperature compensation: Charging parameters adjust automatically based on temperature to match battery needs. Load modes: Multiple selectable load working modes to suit different types of loads and applications. Protections: Overcharge protection, overdischarge protection, overload protection, and short circuit protection to safeguard batteries and loads. Advanced load start: Special starting method allows smooth startup of large or inductive loads. Display and interface: Dot matrix graphic LCD with backlight shows system status and data clearly. Onebutton human machine interface enables quick mode switching and parameter configuration. Parameter control and memory: Adjustable charging and discharging parameters with poweroff memory to restore settings after shutdown. Practical applications Offgrid cabins and small homes: Manage battery charging and protect battery life in solar power installations that use 12V, 24V, or 48V battery banks. Recreational vehicles and boats: Reliable charge control and load management for lighting, appliances, and auxiliary systems while preserving battery health. Remote equipment and lighting: Provide stable charging and protection for solar street lights, remote telecom equipment, and monitoring stations. What to expect in use Straightforward setup and configuration using the LCD and onebutton interface. Stable PWM charging performance that balances battery health and charging efficiency. Clear system feedback on the LCD for status monitoring, mode selection, and parameter adjustments. Enhanced protection for batteries and connected loads to reduce maintenance and downtime. This controller is suitable for installations that require robust battery management, adjustable charging behavior, and dependable protection for both battery and load.