1. Conversion efficiency
The conversion efficiency of solar panels is one of the key bases for selection. Conversion efficiency is directly related to the ability of solar energy to be converted into electrical energy. In a limited illumination area and time, higher conversion efficiency means that the mobile power supply can be charged faster. The conversion efficiency of monocrystalline silicon solar panels is relatively high, up to 15%-24%, the conversion efficiency of polycrystalline silicon is generally around 13%-18%, and the conversion efficiency of thin-film solar panels is usually lower, about 10%-15%. For Solar Fast Wireless Power Bank, if fast charging is pursued, monocrystalline silicon panels are a better choice if the cost allows.
2. Size and power requirements
The size and power requirements of mobile power have an important impact on the selection of solar panels. If the mobile power supply is designed for large capacity and high power output, a larger area and higher power solar panel is required to meet the fast charging requirements. But at the same time, the portability of the mobile power supply should also be considered, and the solar panel should not be too large or too heavy. Generally speaking, small mobile power supplies may use solar panels with a power of 5-10 watts, while larger mobile power supplies for special scenarios such as outdoor emergencies may require panels with a power of 20-50 watts or even higher. For example, a mobile power supply designed for an outdoor adventure team may use a larger monocrystalline silicon panel to obtain enough power to meet the charging needs of multiple people and multiple devices.
3. Adaptability to light conditions
Different use scenarios have different light conditions, which determines that solar panels need to have good light adaptability. Mobile power supplies used in areas with frequent cloudy days or weak light intensity should consider using panels with strong adaptability to weak light conditions. Thin-film solar panels perform relatively well in weak light environments because their light absorption and conversion mechanism enables them to generate certain electrical energy even under low light intensity. If the mobile power supply is mainly used in an outdoor environment with plenty of sunshine, the high efficiency of monocrystalline or polycrystalline silicon panels under strong light can be fully utilized, thereby achieving fast charging.
4. Cost and durability
Cost is a factor that cannot be ignored for commercial products. Although monocrystalline silicon solar panels have high conversion efficiency, their cost is relatively high, while polycrystalline silicon and thin-film panels are cheaper. At the same time, durability is also important, including anti-aging, anti-fall, and anti-scratch properties. For example, thin-film solar panels are relatively thin and light, and to a certain extent more resistant to external impact, but may not perform as well as monocrystalline silicon and polycrystalline silicon panels in terms of aging after long-term exposure to harsh environments. Considering cost and durability comprehensively, it is necessary to choose the most cost-effective solar panel type on the basis of ensuring the performance and quality of the mobile power supply.
