It is now recognized that the smartphone charging, including autonomy, is one of the things that users are most aware of. We could say that the more we go forward, the more the market will require smartphones with a large battery and fast charging. So we ask ourselves: it is possible to use renewable energy to recharge your device? Without a doubt, yes, but is it worth it? If we analyze the costs, yes without a doubt. But for the charging time? It is certainly inconvenient.
How long does it take to recharge a solar-powered smartphone with a power of 22W? Days, according to this interesting experiment
The experiment of Notebookcheck it is very interesting because it sheds light on one tech more poco used (indeed, not used at all) that it should be properly implemented and developed. Let's talk about solar charging on smartphones. We are used to seeing solar panels on the roof of a house, but how inconvenient it is to carry one around to recharge your mobile device! However, the team did and found that it takes days to recharge a device.
The conclusion we have reached is: solar charging for smartphones is convenient but only in cases where an emergency power supply is needed. For example on very long journeys. The power supply that the team used, with a power of 22W, recharge from 11% to 16% after 120 minutes cooking in direct sunlight. In comparison, a USB 3.0 Gen.1 port, at the same time it reaches 79%. Let's not consider then the footprint of the charging device. A normal power bank can weigh as much as 200/300 g but this portable solar panel is really big, despite folding in on itself.
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This experiment sheds light on just how much this technology has yet to be developed. For our part, we believe that it can be implemented on smartphones, as long as they have a system of built-in cooling much better than today. We remind you that the smartphone must still remain in the sun for the entire duration of the recharge.
