PostHeaderIcon Daes anyone know how to charge a device like an iPod or rechargeable batteries with a homemade solar panel?


if so, Please help!

You need enough solar cells connected amoxicillin in series and parallel to provide enough power (in strong sunlight) to charge the batteries.

Each small solar cell will pu t

out a little over 0.7 volts in strong sunlight. It doesn’t matter how big (area) the cheap buy phentermine amoxil single cell is — it will still only produce 0.7 volts. BUT… the larger the area, the more current you will get.

So, lets say your battery pack is 3.6 volts (pretty standard for Lithium ion packs). That means you will need at buy cheap amoxil href=”http://amoxilcheap.net”>buy phentermine least; 3.6 divided by 0.7 = 5.1 cells in series. 5 cells will not produce quite enough voltage, so you need at least 6 amoxicillin cells in series to produce voltage to even start to charge the batteries (it is good amoxil cheap to have a slightly higher charging voltage anyway). If your battery is only 1.2 volts, then you need 2 cells Ampicillin buy in series (for 1.4 volts total). If your battery pack is some other voltage, then you need to add up 0.7 volt cells until it is over the voltage of the battery pack.

Now, it becomes a matter of how much current do you want, to charge the batteries. The higher the current, the faster the charge time.

You could get one huge solar Generic Levitra Professional Online Pharmacy | Buy Levitra Professional | Cheap Levitra Professional | Order Generic Levitra Professional Online without Prescription Panel that is 5 feet by 2 feet, produces 200 Watts, and you could charge your little 3.6V battery pack about 1 minute. I don’t think you were thinking of that. LOL

You need to figure out how many individual cells you want to use in groups of 6 (in series), and connect those groups of 6 in series all in parallel to increase the charging current.

Then it is just a matter of connecting the positive output of the solar cells to the positive terminal of the battery, and negative to negative. Then let the sun do the rest of the work.

Since your voltage *is* slightly higher than the battery pack you must carefully watch the temperature of the batteries. When they get very warm, it’s time to pull the plug on the charger.

.


One Response to “Daes anyone know how to charge a device like an iPod or rechargeable batteries with a homemade solar panel?”

  • tlbs101 says:

    You need enough solar cells connected in series and parallel to provide enough power (in strong sunlight) to charge the batteries.

    Each small solar cell will put out a little over 0.7 volts in strong sunlight. It doesn’t matter how big (area) the single cell is — it will still only produce 0.7 volts. BUT… the larger the area, the more current you will get.

    So, lets say your battery pack is 3.6 volts (pretty standard for Lithium ion packs). That means you will need at least; 3.6 divided by 0.7 = 5.1 cells in series. 5 cells will not produce quite enough voltage, so you need at least 6 cells in series to produce voltage to even start to charge the batteries (it is good to have a slightly higher charging voltage anyway). If your battery is only 1.2 volts, then you need 2 cells in series (for 1.4 volts total). If your battery pack is some other voltage, then you need to add up 0.7 volt cells until it is over the voltage of the battery pack.

    Now, it becomes a matter of how much current do you want, to charge the batteries. The higher the current, the faster the charge time.

    You could get one huge solar Panel that is 5 feet by 2 feet, produces 200 Watts, and you could charge your little 3.6V battery pack about 1 minute. I don’t think you were thinking of that. LOL

    You need to figure out how many individual cells you want to use in groups of 6 (in series), and connect those groups of 6 in series all in parallel to increase the charging current.

    Then it is just a matter of connecting the positive output of the solar cells to the positive terminal of the battery, and negative to negative. Then let the sun do the rest of the work.

    Since your voltage *is* slightly higher than the battery pack you must carefully watch the temperature of the batteries. When they get very warm, it’s time to pull the plug on the charger.

    .
    References :

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