Choosing solar panels

Solar panels for different types of technology

In order not to make a mistake in choosing a solar cell, it is necessary to know clearly: what are the required characteristics of solar battery, which appliances you plan to connect it to. After all, it is one thing to charge a mobile phone and quite another to ensure the operation of full-size appliances.

Solar battery is a pretty expensive device, so it’s hardly worth buying a model much more powerful than required. It will be a waste of money. For example, if you need to charge mobile phones, smartphones, e-books, iPods and similar low-power types of household appliances, you will be well suited by a model with low output voltage (order of magnitude) 9 volts). Varieties of such models are many. Typically, they have a built-in battery pack to recharge any equipment in the evening or cloudy weather. They may resemble a normal cell phone in sight. There is also a more practical option of solar panels, for example in the form of decorative elements adorning the bag.

This bag is very convenient for use in clear weather.

You need more powerful batteries to recharge your laptops. Most modern laptops consume power voltage from 12 to 19 Volts. Therefore, if you want to purchase a solar cell suitable for charging this type of technique, pay attention to its characteristics. The output voltage of the battery must be no less than the voltage of the laptop. Check also whether the battery voltage can be adjusted towards reducing it (so that it is suitable for charging cell phones and other small mobile equipment).

The most powerful solar cell models are designed to power full-size appliances that require a voltage of 220 Volts. Accordingly, they are more expensive than other types of batteries. Such devices are used mainly outside the apartment, or the house, for example during hiking trips, trips, working on a country plot where electricity is not carried out, etc.

Recommendations for choosing a solar cell

are important not only the value of the output voltage of the solar cell. First of all, choose the device that has the most optimal weight and size. Note whether the battery is equipped with a built-in battery and what its capacity is. After all, if it is missing, you will be able to use the battery only in the light of the day, and in sunny weather. Try also to select a battery with a battery level indicator.

Some solar cell models provide the possibility of charging the battery not only with sunlight, but also from the conventional household network, even from the car’s electrical system . If you want to be able to charge your battery in all conditions, choose a model with not only a network adapter, but also a plug with which to connect the battery to the socket car cigarette lighter.

As for the appearance of solar panels, as has been mentioned, there are many varieties of them. There are even solar panels in the form of flexible films that can be rolled into a tube when carried. There are also quite solid in size stationary models, which are placed either on country plots or on the roofs of private houses. Since they are the most expensive, their choice must be taken especially responsibly.

The Russian market presents solar panels of a wide variety of manufacturers, including Russian and Chinese. Since Chinese batteries have the lowest price, many consumers stop their choice on them. However, the low cost is in most cases based on the fact that Chinese solar panels use thin-film silicon. And such batteries have a number of significant disadvantages. First of all, they are the most inefficient, compared to monocrystalline or polycrystalline. In addition, such batteries can quickly fail.

Most batteries made of thin-layer silicon are badly affected by significant temperature differences, especially winter cold, but in Russia harsh winters — commonplace.

Therefore, if you choose a stationary battery, with the expectation that it will last many years and recoup itself, it is advisable for you to purchase products of known brands that use either monocrystalline or polycrystalline flint plates. They cost substantially more than thin-film silicon batteries, but are much more efficient and reliable. This is the case when the initial savings may subsequently result in considerable losses. Of course, before buying try to gather as much information about manufacturers as possible.

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