C ratings

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  • SJFE
    Fast Electric Addict!
    • Apr 2007
    • 4735

    #1

    C ratings

    I forget the formula for figuring out the c rating. Can some one refresh my memory please?
    Thanks Tom
  • 10gauge
    Senior Member
    • Aug 2007
    • 281

    #2
    (C Rating) x (Amp Capacity) = Continuous Amps Out

    e.g. Elite 3S LiPo rated 30- 50C, 4500mAh
    30C x 4500mAh = 135 Amps Continuous

    I find that it's not really continuous at 135A beyond 30 seconds. The practical and safe "continuous" rating is 80% of that. In this case 108 Amps.

    Not sure if this is the formula you were referring to or not?
    Mean Machine Cat: 9XL, 4S2P, CC120, M545 (50mph) -- DF22 Hydro: 8L, 3S1P/4500, CC120, x637 (49mph) -- M-1 SuperCat: 1521/1Y, 6S2P, CC240, x447 (61mph) -- SV27 Mono: stock setup, 14-cell/4200, x642 (42mph) -- Micro Scat Cat: 28-3600, 3S1P/2100, Turnigy 60, x430 (41mph)

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    • SJFE
      Fast Electric Addict!
      • Apr 2007
      • 4735

      #3
      Thanks I just forgot the math.

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