Solar charger: specifications, purpose

Recently, such a device as a solar-powered charger has become very popular. In this article, we will look at what such devices are, what they are for and what parameters need to be paid attention to when choosing solar charge. But first a bit of theory.

On the Earth, a fairly powerful radiation from the Sun is constantly supplied - more than 1000 watts per square meter. Thanks to photocells from this light flux, it is possible to obtain 90-140 watts from one meter. Solar cells are assembled from such photocells, they are converters of light energy into electrical energy.

Now consider the solar charger and its main technical characteristics. The main parameter of such devices is the output power of the device, it will depend on the charging speed of the connected solar cell batteries or the possibility of "feeding" an electronic device. Very often the charger on solar batteries of imported production has a small area of photocells, but it has many compartments for batteries. It is assumed that the device is able to quickly charge all connected devices. But this is just a clever marketing trick. The actual charge velocity directly depends on the area of the photoplates and, accordingly, the output power. It turns out that a solar-powered charger with a small area of photocells will have a low output power, respectively, such charging is ineffective.

The second most important parameter of solar charging is the output voltage. In the passport data of such chargers there can be two voltage values - working voltage and maximum. By maximum, there is a stress without load, it will differ from the worker by about 15-20 percent. It is recommended to choose a mobile charger, whose solar battery gives an operating voltage equal (or slightly higher) to the rated voltage of the connected device. In this case, the power given by charging will be maximum. If you decide to purchase a charger of more power than your device requires, the excess power will simply vanish. However, in low light conditions, the output power of the solar charge will decrease, in this case the choice of a device with a higher power value will be justified. Decide, of course, you.

Summarize. Choosing a charge, you need to pay attention not only to the brand of the product, its design, etc., the main parameter should be the size of the photocell matrix. In this case, you will receive an excellent and efficient portable charger, whose solar battery can quickly charge your batteries or ensure continuous operation of your tablet, laptop, etc. With mobile charging, even on a picnic or long-term hike, you can use the electronic devices you need without saving the battery charge.