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 provides charging management to prevent overcharging, discharge protection to preserve battery life, load control for connected devices, and system monitoring for data like voltage and current.
What is the difference between a PWM and an MPPT controller?
PWM controllers are budget-friendly and suitable for small systems by matching panel voltage to battery voltage. MPPT controllers are more efficient, maximizing output power by dynamically adjusting the operating point, ideal for high-power systems.
What types of batteries are compatible?
Most controllers support lead-acid batteries (sealed, open), lithium batteries (LiFePO4, ternary lithium), and gel batteries. Always confirm compatibility before use.
Does the controller have overload protection?
Yes, most solar controllers feature automatic overload protection, cutting off output if the load current exceeds the rated value to protect the system.
How does the solar controller work at night?
At night, the controller automatically stops charging and manages the battery's discharge to the load according to your settings, ensuring the battery is not over-discharged.