The 15W foldable solar panel, also known as the solar chip, is a photoelectric semiconductor chip directly generated by sunlight. It plays a huge role in all fields of new energy and has been widely applied. Next, the editor will briefly introduce to you how to identify the quality of a 15W foldable solar panel. We hope it will be helpful to you.

Look at the front

It is necessary to carefully observe the surface of the tempered glass, which is something that some 15W foldable solar panel manufacturers do not pay attention to. The surface stains should be cleaned up in time; otherwise, it will affect the battery efficiency. Solar epoxy resin panels

2. Check the battery

To cut costs, many unregulated manufacturers even assemble damaged solar cells into seemingly complete ones. In fact, there is a great risk. Problems that may not be noticed in the early stage can easily break down after long-term use. It affects the entire 15W foldable solar panel. When the temperature is too high, a fire will occur, threatening people's safety.

3. Look at the back

The back design of the 15W foldable solar panel should indicate safety technical parameters, such as open-circuit output voltage, short-circuit fault current, working voltage, etc., and then depend on the pressure-bearing effect control board on the back of the 15W foldable solar panel. If a large number of bubbles or wrinkles and other marks appear after pressurization, the development of this type of 15W foldable solar panel is classified as unqualified. Solar panel

4. Check the junction box

The junction box is a type of connector for solar cell modules. Its main function is to output the electrical energy generated by the solar cell modules made of cables through the cables. The firmness of the junction box is also related to the efficiency of the 15W foldable solar panel. The cover of the junction box should be firmly attached to the junction box, and the lead-out lock should rotate freely and be tightened.

When purchasing an epoxy 15W foldable solar panel, be sure to pay attention to the above four points. In addition, we must be able to make choices based on the configuration we need.

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