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  1. #1
    RC Competitor
    Join Date
    Mar 2012
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    94

    Can someone explaine the "c" rating for me

    Like the title says, I want to know what the "c" rating is, and how a 30cday differs from say a 50c???

  2. #2
    RC Racer
    Join Date
    Mar 2011
    Location
    Wisconsin
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    183
    http://www.commonsenserc.com/page.ph...explained.html
    About the simplest explanation I've seen. Hope it helps!
    I test the durability of objects crossing paths.

  3. #3
    RC Champion
    Join Date
    Jan 2012
    Location
    Colorado Springs
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    1,858
    its basically how fast the battery can be discharged or the amps in the battery can be utilized.

    the higher the rating, the more "punch"

    (I hope you enjoy my random analogy)
    its like drinking a Mcdonalds Milkshake
    10c equals regular size straw....hard as heck to enjoy the milkshake
    50c equals mcdonalds "milkshake" size straw....total happiness!

  4. #4
    RC Champion
    Join Date
    Mar 2010
    Location
    Ontario, Canada
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    1,072
    I've found that the C rating can not be used to compare different manufacture batteries. brand X battery with 40c can easilly be out performed by brand Y battery with 30c , with both batts @ 5000mah

    Its really good to compare same brand battery. also depending on the Truck/Car its used in matters.

    A 1/16 scale does not need much C , where as a E-Revo or Losi Truggy will benifit from highest C possible, also C or punch can only be as good as the traction you have.

    Then the electronics used play a large part also
    MMM/2650, E-maxx Body=FUN !
    3 Slash 4x4
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  5. #5
    RC poster
    Join Date
    Apr 2012
    Posts
    12
    Hello, I have 2S 35C 5800mAh batteries with my E-Revo BL which give me plenty of power already.

    I'm wondering whether I should by additional packs, and I'm considering buying 65C.

    Would it be fair to say that the higher C rating, the less runtime I would have as the battery would be able to discharge faster?

  6. #6
    RC Champion
    Join Date
    Jul 2009
    Location
    Aperture Laboratories
    Posts
    2,450
    yes and no. You should have the potential to have shorter runtimes, yes. BUT you still have the exact same capacity. If your packs can't provide enough current, the voltage will probably drop much more under load, therefore you will get less total power than you could have used at the same time. Keep in mind, the more power being used= harder acceleration/speed/ "punch" , faster pack drain.

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