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6V 300mA solar panel or 4v 430mA panel

  1. Jan 2, 2010 #1
    Please help me...

    I need to make a solar boat for a project. the problem is this that i have two options of buying the solar panel which suits my max. dimension of solar panel. one is 6V 300mA and other one is 4V 400mA.

    Now i am a bit confused about which one to buy.as i need both the speed and torque in the motor running via it to run the race,,

    Please help me to choose which one will be better if i use to them to power a motor to run my boat..






    Thanks in advance !!!!
     
  2. jcsd
  3. Jan 2, 2010 #2

    mgb_phys

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    The 6v panel produces slight more power (1.8W rather than 1.6W) but a more important questions is
    what voltage motor do you have available?
    Is this going to be a simple panel->motor or are you planning some motor control electronics
     
  4. Jan 2, 2010 #3

    cronxeh

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    This is for a toy boat right, not something people would be on? I shudder to think someone who doesn't know the power formula would be designing this :uhh:

    The actual answer depends on the total dimensions of the available space, the total weight allowed, and the power output for every type of solar panel available. Then its a matter of modeling.
     
  5. Jan 2, 2010 #4

    mgb_phys

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    I hoped that with a 1.5W panel they weren't planning an ocean crossing ;-)
     
  6. Jan 3, 2010 #5
    it is a toy boat. there is limit for 150 sq.cm of the solar cell. now i could get max of the above from it
     
  7. Jan 3, 2010 #6

    mgb_phys

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    The 6V panel puts out slightly more power and you are probably going to be able to more easily find 6V motors than 4V ones
     
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