What Does Solar Battery Works Like?

Do you know solar battery? Have you ever seen it or used it?What does solar battery works Like?

Precisely speaking, we should call it solar cell. This kind of device never needs battery and in some cases, don’t even have an off button. As long as there’s enough light, they seem to work forever. You may also have seen larger solar panels, perhaps on emergency road signs and call boxes and even in parking lots to power the lights.

Although these larger panels aren’t as common as solar-powered calculators, they’re out there and not that hard to spot if you know where to look. In fact, photovoltaics — which were once used almost exclusively in space, powering satellites’ electrical systems as far back as 1958 — are being used more and more in less exotic ways. The technology continues to pop up in new devices all the time, from sunglasses to electric vehicle charging stations.

The hope for a “solar revolution” has been floating around for decades — the idea that one day we’ll all use free electricity fro­m the sun. This is a seductive promise, because on a bright, sunny day, the sun’s rays give off approximately 1,000 watts of energy per square meter of the planet’s surface. If we could collect all of that energy, we could easily power our homes and offices for free.

Now let’s examine solar cells to learn how they convert the sun’s energy directly into electricity. In the process, you will learn why we’re getting closer to using the sun’s energy on a daily basis, and why we still have more research to ­do before the process becomes cost-effective.

Know more at:http://www.youtube.com/watch?v=AmWrGPKcMNM