Solar cell phone chargers can only be used in emergencies and cannot be used to charge cell phones and other digital products. To fully charge cell phones, ordinary cell phones require a solar cell phone charger with a solar panel above 0.7W.
Solar chargers convert solar energy into electrical energy and then store it in a battery. The battery can be any form of electricity storage device and generally consists of three parts: photovoltaic solar cells, batteries, and voltage regulation components. .
Are cell phone batteries really solar powered? ? Which one is more practical than ordinary?
1. Make sure the cell phone battery voltage is lower than the operating voltage ofu solar panel so that it can be charged. For 4.4V solar panels, cell phone battery voltage is best around 3.6V.
2. The working current of the solar panel should be large enough, generally 1/5 of the capacity of the mobile phone battery. For example, if the cell phone battery is 2000mA, the operating current is better 400mA. , so that it can be fully charged in one day.
3. The solar cell itself is black and absorbs heat, but that doesn't mean it's charging.
Xiaomi's new design patent is revealed: the back of the mobile phone is equipped with a solar battery.
Mobile phone batteries contain solar energy, but because the cell phone cannot be exposed to sunlight for a long time, the solar energy usage is very low. At the same time, thesize of the cell phone cannot be too large, which limits the surface area of the solar cell. It has no advantage over ordinary cells. so few people use it now.
Hello, are there solar panels for recharging cell phone batteries?
IT House News August 4. Foreign media Letsgodigital reported that Xiaomi's new design patent has been exposed. The front of the phone has a full screen and a solar cell on the back.
▲via Letsgodigital
According to Letsgodigital, Xiaomi launches a large number of smartphones every year, from Android One smartphones to high-end smartphones to gaming phones. At present, major manufacturers are also innovating mobile phones in different directions.
It is understood that as of July 27, 2018, Xiaomi has filed a design patent application with theWIPO (World Intellectual Property Organization), a smartphone equipped with solar panels. phone.
According to the patent sketch, the front of the phone adopts a full-screen design, without punch holes or water-drop screens; the width of all four sides is the same. From the front, this phone is nothing special. On the back of the phone, we can see a large solar panel that covers more than half of the back of the phone from the side, adding the solar panel does not make the phone very thick. Additionally, the rear uses a vertically arranged dual camera with a flash in the middle; We don't see a fingerprint sensor on the back of the phone, and foreign media say it could be equipped with one.Fingerprint under the screen.
It is understood that LG has already launched a mobile phone with a solar battery; the mobile phone can be charged for 10 minutes in the sun and can spend un call for approximately 2 minutes. minutes.
There is not just one solution, but look at the following:
1. Charging solar panels
Mobile phones usually use 3.7V lithium batteries. , in this case you can choose a solar cell of around 4.5V to charge your mobile phone.
Nowadays, solar cells can be made flexible, just like a piece of paper that can be folded. The advantage is that they can be sewn into textiles, such as backpacks, hats, clothing, etc. , so they can be used for outdoor viewing. You can charge your cell phone while enjoying the beautiful scenery of the motherland. If your mobile phone capacity is 900mah, A4 paper size (8.5W) single crystal silicon battery board can be fully used. charged in one hour under sufficient sunlight.
2. Cell Phone Power Bank
I recommend this method to charge your cell phone when there is no sun. Look at the image below. Although this kind of thing only costs tens of euros. dollars, but there are very few restrictions on usage. As long as you have AA dry batteries, you can charge your cell phone at any time. However, in the interest of environmental protection, I recommend using rechargeable nickel metal hydride batteries, which it is. very beneficial for environmental protection.
Finally, I hope you can enjoy OPPO's powerful music functions without running out of power.