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Solar cell phone charger
Most cell phone users will have experienced a flat battery in a place where they have been unable to recharge it. This frustrating problem need not happen in future with a solar cell phone charger. These devices are small solar panels that use the free energy of sunlight to recharge the battery in a short period of time. They are inexpensive, robust, lightweight, and fold away for easy storage. Charging time depends on the size of the panel but it usually takes just a few hours. With the right adapter, they can also be used to charge other low-power gadgets, like music players and handheld computers.The typical solar cell phone charger has two or more hinged panels that fold out to form a larger panel. The silicon cell models weight roughly three times as much as a cell phone, and are about three times the size when fully extended. When folded, they are only slightly bigger than a regular cell phone. The newer models that use thin-film solar cells are even lighter and their flexibility allows them to be rolled up. They are often less efficient than the silicon models and require a larger surface area to generate the same amount of power. There are also a range of novelty keychain chargers that use a tiny solar panel. However, these have much less power than the other models and take much longer to charge, usually requiring more than a day.
While a solar cell phone charger can work anywhere there is light, the shortest charging time is achieved by positioning it directly at the sun. They often come with suction cups so the charger can be attached to a window, which is ideal for using them in confined spaces such as a car or train. They work fine with cloudy skies and artificial light but charge faster on a sunny day. Some chargers can even complete a full charge is less time than the battery provides for talking on the phone. Other models have a battery and solar panel in the one unit that allows a phone to be charged without using the panel. However, these combined chargers are heavier and more expensive than other models.
Solar cell phone chargers often come with a range of adapters that will fit most phone brands. It is possible, however, that a newer phone or an unpopular brand may not have a suitable adapter, and even so-called universal adapters do not fit all phones. Since the chargers are also used to charge other gadgets, adapters for the most popular brands of these are often included. Some chargers have adapters that allow several units to be connected together to provide more power and reduce the charging time. This is especially useful for cell phones and gadgets that have large capacity batteries take longer to charge.
A solar cell phone charger is an essential item when traveling. Users can avoid the hassle of carrying spare batteries and making sure they are fully charged. They make a great backup device in case the regular charger fails, or cannot be used due to the different power points in different countries. This is especially important during business trips where the cell phone is the preferred means of contact. They provide a source of charging power in remote locations that have no power, and could be a life saver when people are lost or in danger. Solar cell phone chargers cost between fifty and two hundred dollars, depending on the size of the unit and its power output, but compared to the inconvenience of not being able to use a cell phone it seems like a trivial amount to pay.
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