In today’s increasingly popular solar panels, solar charge controllers, as an important part of the solar panel system, are still not well known by the public. Today let us together in-depth understanding of the solar charge controller it.
Solar charge controller is an electric device installed in the solar panel system to protect the solar panels and also protect the whole circuit safely and smoothly.
Solar charge controller has two main working principles: one is to regulate the output voltage of the solar charge controller and the current size of the system; the second is to block the current when necessary.
2.1 The first principle: the solar charge controller can maximize the current when charging solar battery, so that solar battery can be charged to eighty percent of the fastest time. Then reduce the current to let it have an absorption process, and finally let the solar battery have a power float, so that it can be stable full of power, and will not harm the battery.
2.2 The second principle: it can be briefly memorized as a mnemonic: “high pressure to low pressure”. During the day, the sunlight is strong, the solar panel voltage is greater than the solar battery voltage, so the current flows to the solar battery. At night, when the light is not enough, the solar cell voltage is greater than the solar panel voltage, which will lead to current flow from the solar battery to the solar panel. When the solar charge controller is connected to the whole system, it can block the current flow from the solar battery to the solar panel, so as to achieve the effect of protecting the battery and preserving the power.
The existence of solar charge controllers is especially important due to the deviation of the current flow from the solar panel to the solar battery.
This is a common problem with most solar panels around the world: when a 12 volt solar panel is working properly, its output voltage tends to come in at 16 to 20 volts. This puts a huge strain on the solar battery, which can lead to battery damage over time. The solar charge controller can be in the system to minimize the output voltage of the solar panel to reach its own marked voltage, thus playing a role in protecting the battery.
No. In daily life, people often use solar charge controllers to reduce the output voltage of certain electrical appliances. Most of the appliances we use are low-power appliances, so even if we reduce their output voltage, the effect is very small. Therefore, the solar charge controller is not necessary for everyone in life (but advance preparation can prevent some emergencies).
In the whole solar panel system, solar charge controller does not belong to the main part, and the price is relatively low, but in the protection of solar cells play a vital role. In order to protect the health of the battery, and the budget allows, solar charge controller is the choice.
