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  1. #1
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    Post for all the math geeks...

    im trying to figure out how many Amps per hour my titan 12t pulls. it has the included spur installed and the truck lasts 20 min. i need to know the formula and the answer to this. note: it is harder than it seems.

    PS there will be more math rc questions later on.
    All I need now is to set a new lap record.

  2. #2
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    What is the size of the battery?
    We need actual capacity, not what the label says.
    Whatever it is I just said... I could be wrong.

  3. #3
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    ? how much does it pull at max no matter what battery? right?

    and yes it is a hard question so many variebles left out that we need to know
    summit /mustang /stampede-2s spc lipo

  4. #4
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Need to know how many mAh it has... so yes, it does matter what battery; we only have one part of the equation: 20 minutes.
    Whatever it is I just said... I could be wrong.

  5. #5
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    hmmm lets say stock cell
    summit /mustang /stampede-2s spc lipo

  6. #6
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    we can only work out an average from this because the load is not continuous
    Does more $ = More fun?
    Rustler VXL

  7. #7
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    the batt. is a 8.4 3000 MAH. the truck was lifted off the ground and was at full trottle the whole time. the servo was powered by a second radio and a reciever batt.
    All I need now is to set a new lap record.

  8. #8
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    Quote Originally Posted by f687s View Post
    the batt. is a 8.4 3000 MAH. the truck was lifted off the ground and was at full trottle the whole time. the servo was powered by a second radio and a reciever batt.
    That load will be very different from the load when he truck is pushing its self. It will also be very different from the load of accelerating.

    Sent from my Transformer using Tapatalk 2

  9. #9
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    The need arises to change mAh to Ah... mAh / 1000 = Ah

    To calculate run time of a battery... capacity Ah / Ah draw * 60 = time

    Since time and capacity is known, using basic algebra you can solve for the unknown.
    Whatever it is I just said... I could be wrong.

  10. #10
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    Quote Originally Posted by Jimmie Neutron View Post
    The need arises to change mAh to Ah... mAh / 1000 = Ah

    To calculate run time of a battery... capacity Ah / Ah draw * 60 = time

    Since time and capacity is known, using basic algebra you can solve for the unknown.
    thanks, can you guys put more RC math ?s
    All I need now is to set a new lap record.

  11. #11
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Discharge amperage for a battery:
    mAh > Ah * discharge C = Available Amps
    so
    (mAh/1000) * discharge C = Available Amps
    Whatever it is I just said... I could be wrong.

  12. #12
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    how many fluid ounces is 75cc? what is the formula of cc to FL OZ
    All I need now is to set a new lap record.

  13. #13
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    Whatever it is I just said... I could be wrong.

  14. #14
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    how much kv is lost per a turn added?
    All I need now is to set a new lap record.

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