How does the solar cell phone charger work?

Solar cell phone chargers contain panels that absorb the energy from the sun. This energy is then available to be used later to charge the cell phone’s battery.

How much energy could I save in K Watts each year using a solar cell phone charger?

An exact calculation of cost savings cannot be made because the savings depends on many things like the capacity of the charger being used, the cost of electricity in the area, the output of the cell phone battery, and how often the cell phone needs to be charged.

How much time does a solar charger require to fully charger a cell phone?

The energy output of the solar charger and the cell phone battery Watts per hour determine how long it will take for the battery to become fully charged. The calculation is follows:

(Amperes per hour of the cell phone battery / Amperes per hour of the solar charger) + 10%

Example: If you have a 5 Watts/hour cell phone battery and and a 2 Watts/hour solar charger, here are the calculations for how much time it will take for the battery to become fully charged in direct sunlight.

Step 1: Convert Watts to Amps (Watts/Volts = Amperes):

Cell phone battery: 5 Watts /12 Volts = 0.417 Amperes

Solar charger: 2 Watts /12 Volts = 0.167 Amperes

Step 2: Determine charging time (Divide the Amperes per hour of the cell phone battery by the Amperes per hour of the solar charger and add 10%):

0.417 Amperes (cell phone battery) / 0.167Amperes (Solar charger) = 2.50 hours + 0.25 = 2.75 hours

The cell phone battery will take almost three hours to become fully charged using the specifications above.

What are the best solar cell phone chargers?

There are two cell phone chargers that I recommend:

• iSun

• Solio Classic

How much waste is produced by manufacturers who produce "green" solar chargers?

It is known that more energy and resources are used to create these “green” solar chargers than is gained in cost savings. The manufacturers of these products appear to be counterproductive in their efforts of environmental conservation.

For instance, more electricity is consumed in the making of the solar chargers, than is saved on a consumer’s electric bill.

Although an exact figure of how much waste is created during the manufacturing process of “green” solar chargers, it is undeniable that far more resources are consumed in the production of these solar chargers than

they are in electricity savings.

About the Author

Valery Bowen writes for 12voltsolarpanels.net a non commercial blog focused on his energy efficient story to help people understand how and why they should save energy starting from small devices. She writes on Solar Cell Phones Chargers to help people learn how to start save energy from the scratch and then apply those experience to the next level.