❓ Frequently Asked Questions
What is a solar controller?
A solar controller (also known as a solar charge controller) is a device used to manage the electrical energy transmission between solar panels and batteries. Its main functions are to prevent the battery from overcharging or over-discharging, extend the battery life, and optimize the efficiency of the solar energy system.
What is the role of a solar controller?
It handles charging management to prevent overcharging, provides discharge protection to save battery life, manages power supply to connected loads (lights, devices), and offers system monitoring for data like voltage and current.
What is the difference between a PWM and an MPPT controller?
PWM controllers directly reduce panel voltage to battery voltage and are suitable for small-scale or budget systems. MPPT controllers maximize output power by dynamically adjusting the operating point, offering higher efficiency for high-power systems.
What types of batteries are compatible?
Most controllers support multiple types including Lead-acid batteries (sealed, open), Lithium batteries (LiFePO4, ternary lithium), and Gel batteries. Always confirm support for your specific battery type.
Does the controller have overload protection?
Yes, most solar controllers include overload protection. When the load current exceeds the rated value, the controller automatically cuts off the output to protect the system.
How does the solar controller work at night?
At night, the controller stops charging and manages the battery's discharge to the load according to your settings, preventing the battery from being over-discharged.