Solar power battery chargers are an increasingly common way of providing power for electrical devices for campers, travelers, and those living in remote areas. Simply take your depleted standard batteries, set up your solar charger on a sunny day,outside or on a window sill,and let the sun restore your batteries or your device to a full charge.
Solar cells work by turning sunlight into electricity using the photovoltaic effect, which harnesses the trait of particular substances to emit electrons when they come into contact with electromagnetic radiation, including sunlight. The electrons emitted in a solar cell are turned into electric current. Most solar panel kits already come with batteries, to charge up for use during non-daylight hours, so the development of solar battery chargers was a natural offshoot for the technology.
The main consideration in whether to purchase a solar battery charger is cost. For example, an AA battery charger using a wall socket costs between roughly $12 to $151, with some very cheap models coming in as low as $5. A solar charger can also be had for $5, but with a tiny solar cell that will take an entire sunny day to fully recharge a set of batteries. The truly comparable models – those that charge at the same rate as a conventional wall socket model - cost between $50 to $90. Solar chargers are therefore a good option for those who visit areas where a wall outlet is either inaccessible or inconvenient, or those who want to spend a little extra for an environmentally-friendly means of charging their batteries.
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