EL-2135 LCD Display 12 Digits Pocket Solar Calculator

Specifications:

• This Pocket Solar Calculator has durable plastic keys
• This 12 Digits Solar Calculator is a LCD display calculator
• The Pocket Solar Calculator offers basic functions
• Keyboard and display is easy to read and operate
• 12 digit desktop calculator with angled display features business and sales calculations
• The calculator is small enough to take with you anywher
• Easy to read screen display and big number
• AA Battery & Solar dual-supply driver 
• Max Digits: 12 digits
• Display Type: LCD
• Size: 190 x 154 x 41mm/7.4 x 6.1 x 1.6in(H x W x D)

Details:

• The Pocket Solar Calculator offers basic functions
• This 12 Digits Solar Calculator is a LCD display calculator

• Extra-large display for easy readability
• Keyboard and display is easy to read and operate

• 12 digit desktop calculator with angled display features business and sales calculations

• The Pocket Solar Calculator is small enough to take with you anywher

How to Choose a Calculator:

With so many calculators around, how do you know which one to choose? Learn everything you need to know about how to choose a calculator.

• Decide how complex of a calculator you need. Calculators start with the very basic addition/subtraction/multiplication/division combo, and go all the way to high-end 3D graphing calculators capable of solving complex engineering equations, but they fall into three standard groups: basic, scientific, and graphing. Choose one of these.
• If you chose the basic calculator, there's not much of an additional decision to make, as basic calculators are, well--basic. Scientific calculators, however, give you a few more decisions to make. Some include the ability to do not only basic trigonometry, but also many calculus functions (things typically included only in graphing calculators.) The most popular graphing calculators are made by Texas Instruments (TI). Whichever calculator you choose, visit the manufacturer's site, and compare the features of each version.
• Ask yourself how portable you want your calculator to be. Graphing calculators take up a lot more space than scientific or basic, but most graphing calculators can still fit in your pocket. If you'll be near your computer when you use your calculator, consider downloading one for free. Search the internet for free basic, scientific, and graphing calculators.
• Determine where you'll buy your calculator. If you buy online, you'll probably get a much cheaper price than in-store. Unlike other products like clothes, there's little worry that you won't end up liking the product, as you can view all the details and images of the product online. (Really the only risk might be not liking the way the keys feel when you press them).

How to Use a Solar Power Calculator:



Nearly every basic calculator has a set of solar panels built into it. Even so, these calculators usually come with a battery inside that actually powers the device. These panels help extend the life of the calculator by slowly recharging the original battery. The manufacturer's intention is to make the calculator last long enough that it gets replaced for a reason other than the battery, often being dropped and broken.

• Use most solar powered calculators like you would any other calculator; direct exposure to light typically doesn't matter
• Recharge a battery powered calculator by leaving it in a bright location but out of direct sunlight
• Recognize when you have a true solar calculator. The numbers will fade when the light is blocked and there will often be a noticeable lag between pushing a button and its appearance on a calculator. When using a true solar calculator operate it in a bright location but still out of direct sunlight
• Clean off the panels occasionally to keep them working well. Dust, dirt and oils from your fingers can cause a significant amount of refraction, and the solar energy is lost. Wipe them off with a paper towel or even the end of a shirt, the plastic covering over the panels will protect them

How Does a Solar Powered Calculator Work at Night:

• The process - Many readers may remember sitting in biology class and learning about photo-synthesis. Photo-synthesis is the process where plant-life takes in the rays of the sun and essentially converts that into food or energy. The solar powered calculator works much in the same way in that instead of plant cells, the calculator has the solar panels which consist of solar cells or photoelectric cells. These cells accept the sunlight and, acting as batteries, stores the sun's light and converts it into electricity. This, when you use the calculator, instead of alternate battery current, you are using energy converted from sunlight
• Night Ops - Fortunately, these cells can store an amazing amount of energy for their size. The drawback, like with a rechargeable battery, is that they must be recharged frequently. In this case the calculator needs to be in sunlight as often as possible in order to maintain a constant supply of electro-power

Package Included:

• 1 x Calculator