Unless it is useful where there is no electricity and solar energy is needed.
Question 2: Is the solar charging treasure practical?
There is no comparison between the conversion of light energy into electric energy and the conversion of electric energy into electric energy. For current solar products, the average conversion rate of electric energy is about 15%. Other things being equal, the efficiency of light charging is much lower than that of line charging. In other words, there are many concepts of solar charging, and their functions are dispensable, so they have no practical value.
Question 3: Which is better, solar charging treasure or ordinary charging treasure? Solar charging treasure has the sun, even if there is the sun, its power generation capacity is limited. As for which one to say, it depends on your own needs. The price of solar charging treasure will obviously be more expensive, not to mention the price of a good solar charging treasure (imported). Unless you have special requirements, such as you often have more outdoor activities, outdoor adventures, spacewalks, moon trips and so on. I think you need a solar charging treasure. If you are a general requirement, an ordinary charging treasure will do. There is also a charging treasure that generates electricity by hand. As long as you are full and have the strength, you can recharge and exercise by shaking.
Question 4: Is the charging treasure charged with solar energy or not? It is best to charge it with solar energy and commercial power. Solar energy has limitations, and it is more convenient to use it for two purposes. The following models are both solar energy and commercial power, which can solve many inconveniences.
Question 5: Is the solar charger better or the charging treasure better? If you are not outdoors for a long time (more than 3 days), it is recommended to use a mobile power supply, just buy a bigger one ~ ~ ~
If it is difficult to get charging opportunities outdoors for a long time, you can use solar charging equipment, but you can also simply buy solar panels with higher power, and the battery capacity should not be too small. The so-called solar charger on the market, hundreds or even tens of dollars, is difficult to meet your needs. If you walk in the sun with it on your back all day, it may not be enough for you to charge your mobile phone (outdoors, you are unlikely to keep the solar charger facing the sun for a long time).
The following recommendations are for 5V systems (battery 3.7V).
If you choose, the mobile power supply should be more than 6000MA, preferably 8000- 10000MA, which can power the mobile phone for 4-5 times ~ ~
Solar charger, it is recommended that the power of solar panel is 2W-5W, and the battery is 5000MA or above ~
Question 6: What about the solar charging treasure? Solar charging treasure has low conversion rate and high environmental protection requirements, so it is not recommended to buy it.
The average electric energy conversion rate of solar products is about 15%, that is to say, solar panels absorb 1000 watts of energy, and theoretically the converted electric energy is about 150 watts, provided that the conversion equipment is qualified. In the case of direct sunlight at noon, the available energy per square meter of solar panels is about 1000 watt, and the solar panel area of conventional solar charging treasure is about 0.0089 square meter. That is to say, in the case of strong sunshine at noon at sea level, it takes about 80 hours for the solar panels of charging treasure to be full. That is to say, if there is insufficient sunshine in Chengdu or the lighting conditions of street lamps and LED lamps mentioned in the publicity, it will take more time.
Many advertising words may exaggerate, foster strengths and avoid weaknesses, so please think about the problem from another angle before buying products.
Question 7: Who is better, solar mobile power supply or ordinary charging treasure? The utility and service life of ordinary charging treasure will be higher.
The area of a solar panel is about 0.0089 square meters, so it takes about 80 hours for the solar panel of the charging treasure to be full under the condition of strong sunshine at noon at sea level. That is to say, if it is in an area with insufficient sunshine like Chengdu, or under the lighting conditions of street lamps and LED lamps mentioned in the advertisement, it will take ten times or even a hundred times to fill it. Ordinary charging treasures are more durable and practical because they are mature, as long as the quality is qualified.
Question 8: Whether the solar charging treasure is good or not cannot be generalized. It is suggested that you can't buy miscellaneous brands on the internet casually, but you'd better buy brands. The general solar charging treasure has not passed strict quality inspection before leaving the factory, so its service life cannot be guaranteed. Secondly, some rechargeable photovoltaic panels are too small to be fully charged. Therefore, it is best to choose a solar charging treasure with a large photovoltaic panel area, which is folded more, saves space and charges faster. As for the capacity of the battery, you should choose according to your actual needs. I use multiple times Tai Chi Bao, which can be filled in one day. I think this is a very good product.
Question 9: Is the solar charging treasure easy to use?
Question 10: Is the solar charging treasure finally useful? The quality of solar charging treasure cannot be generalized. It is suggested that you can't just buy miscellaneous brands online, but you'd better buy brands. The general solar charging treasure has not passed strict quality inspection before leaving the factory, so its service life cannot be guaranteed. Secondly, some rechargeable photovoltaic panels are too small to be fully charged. Therefore, it is best to choose a solar charging treasure with a large photovoltaic panel area, which is folded more, saves space and charges faster. As for the capacity of the battery, you should choose according to your actual needs. I use multiple times Tai Chi Bao, which can be filled in one day. I think this is a very good product.