10A PWM Solar Charge Controller – 12V/24V Auto, Dual USB, LCD Display

The 10A-Solar-Charger-Controller is a PWM solar charge controller designed to regulate the charging of 12V or 24V battery banks from photovoltaic panels in off-grid solar systems. It automatically detects the system voltage (12V or 24V) and manages the charging process using advanced PWM modulation, which improves charging efficiency and helps extend battery service life. The controller supports sealed, gel, and flooded lead-acid battery types, and its three-stage charging algorithm—bulk, boost, and float—ensures that the battery is charged quickly without overcharging or stratification.

The front panel features a 2-inch graphical LCD that displays dynamic system parameters, including battery voltage, charging current, battery capacity level, and load status. Two USB ports with a combined output of 5V/3A allow direct charging of mobile phones, tablets, and other USB-powered devices, making the controller useful in remote locations where grid power is unavailable. The output load terminals can be programmed with a timer function to control when DC loads are connected or disconnected, and the controller also includes a light-control (photocell) option for automatic night activation of loads such as street lights or security lighting.

The controller is rated for a maximum charge and discharge current of 10A. The maximum PV input power is 130W in 12V mode and 260W in 24V mode, with a maximum PV input voltage of 50V. A comprehensive protection suite includes battery overvoltage and undervoltage protection, reverse polarity protection, short-circuit protection, overload protection, and reverse current protection. The controller is intended for solar home systems, street lighting, remote monitoring stations, and small off-grid power installations where a compact, display-equipped PWM controller with USB charging capability is required.