The term solar charge controller may sound very technical and difficult to explain, but in layman’s language, it is referred to as a voltage or a current regulator that keeps batteries from overcharging.
It makes sure that batteries are not overcharged during the day, and the power doesn’t run back to the solar panels and drain the batteries.
A solar charge controller offers facilities like lighting and load control, but managing power is its primary responsibility. Its core function is to keep your deep cycle batteries properly fed and safe for a long time.
(Image Source- Luminous)
Solar Charge Controller
Working of A Solar Charge Controller
When connected to any existing UPS, a solar charge controller converts it into 100% Solar UPS without any change in the electrical wiring.
Leading companies of solar solutions like Luminous offer Solar Retrofit Solution that comes with inbuilt intelligence to maximise the use of solar energy power to your electrical appliances. It makes use of the solar optimization technique to extract minimum power from the mains and use solar energy to the maximum.
For instance, if the battery is charged only 70% till evening, the Solar Retrofit Solution, after analysing the usage pattern, will not charge the battery through the mains, but will wait till evening to do so, which in turn will save the electricity bill and help in the optimization of solar energy. One of the key features of the Solar Retrofit by Luminous is that it supports a 4-stage smart charging to ensure fast, safe, and efficient charging and long battery life.
To further explain to you the importance of a solar charge controller, we have listed some of its important functions below:
- Monitor and Control the Voltage of Devices
One of the solar charge controller’s primary functions is to monitor and control the voltage of a device in case the device’s charging voltage increases to a certain level.
- Prevents Overcharging
Once a battery is completely charged, it cannot store incoming energy. Preventing overcharge is simply a process of reducing the flow of energy to the battery when the battery reaches a specific voltage. When there is a drop in the voltage due to the lower sun intensity or an increase in electrical usage, the controller again makes a provision for the maximum possible charge.
- Stopping Reverse Current at Night
Solar panels work by pumping current through the battery in one direction. During the night, batteries may pass a small amount of current in the reverse direction, resulting in a slight discharge from the battery. In most controllers, charge current passes through a semiconductor, which acts as a valve to control the current. It is known as a semiconductor, as the current passes only in one direction, thereby preventing the reverse current without any extra effort.
- Protects Against Overload
A circuit is considered overloaded when the current flowing in it is higher than it can handle safely. This can result in overheating, including a fire hazard. Overloading can be caused by a fault that is a short circuit in the wiring or by a faulty appliance. Built-in overload protection can be beneficial, but in some situations, additional protection is needed in the form of fuses and circuit breakers.
Solar charge controller not only protects the batteries from overcharging, but it also helps in its charging from over and under voltages.
So, get a solar charge controller in place and a new life to your batteries. It will also ensure they are safe against all the possible hazards.