Recently, a device such as a solar-powered charger has gained great popularity. In this article we will consider what such devices are, why they are needed and what parameters need to be paid attention to when choosing solar charges. But first, a little theory.
Quite powerful radiation is constantly coming to the Earth from the Sun - more than 1000 watts per square meter. Thanks to the photocells, it is possible to get 90-140 watts per meter from this luminous flux . Solar panels are assembled from such photocells, they are converters of light energy into electrical energy.
Now consider a solar-powered charger and its main technical specifications. The main parameter of such devices is the output power of the device, the charge speed of the connected batteries of the solar battery or the ability to "power" any electronic device will depend on it. Very often a foreign-made solar-powered battery charger has a small area of solar cells, but it has many battery compartments. It is assumed that the device is able to quickly charge all connected devices. But this is only a clever marketing trick. The real charge speed directly depends on the area of the photographic plates and, accordingly, the output power. It turns out that a solar-powered charger with a small area of solar cells will have a small 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 - operating and maximum. By maximum is meant voltage without load, it will differ from the worker by about 15-20 percent. It is recommended to choose a mobile charger, the solar battery of which produces an operating voltage equal to (or slightly higher) than 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 with more power than your device requires, the excess power will simply disappear. However, in low light conditions, the output power of the solar charge will decrease, in which case the choice of a device with a high power value will be fully justified. Of course, you decide.
Summarize. When choosing a charge for yourself, you need to pay attention not only to the product brand, its design, etc., the size of the photocell matrix should become the main parameter. In this case, you will receive an excellent and effective portable charger, the solar battery of which can charge your batteries in a short time or ensure continuous operation of your tablet, laptop, etc. With mobile charging, even on a picnic or on a long trip, you can use the electronic devices you need without saving battery power.