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    Thread: Ok, a remote control car can run for hours on 2 tiny batteries, so...

    1. Banned slide13's Avatar
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      09-28-2012 01:36 AM #1
      why can't we build a real car in the same scale? am i a genius?

    2. Member BattleRabbit's Avatar
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      09-28-2012 01:43 AM #2
      You finanlly solved the mystery that has prevented man from making effective electric cars. You are genius.

      Let's make some plus-size AA's, folks!
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      09-28-2012 01:49 AM #3
      You are a genius! You should get together with VigorousZX to produce a supercar. If you actually built that remote control car, or even put batteries in one, then you're project leader.
      Quote Originally Posted by apizzaparty View Post
      never thought once to use my lefty for the brake. sorry in my opinion it is dumb.

    4. Senior Member AZGolf's Avatar
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      09-28-2012 01:50 AM #4
      I used to race R/C cars. They ran for 4 minutes on a battery pack that made up half of the vehicle's weight, and that was with hitting top speeds of less than 30mph. Aero drag increases at the square of velocity. Even really slow R/C cars driven at a more leisurely pace would get no more than 20 minutes or so from a full charge back when I was in to them. I know the latest LiFePo cells have better energy density than the 20-30C NiMH cells we ran a decade ago but it's still not magic. A car with a 20 minute range at 20mph would cover 6.7 miles on a charge.

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      09-28-2012 02:05 AM #5
      Lets throw little people in the RC cars so that we can throw tons of airbags and steel frames and sound deadening and heavy luxuries in and increase the weight of these RC cars massively. Then, we'll see if these RC cars can run for 10% of the time modern electric cars can run on their proportionally sized batteries. It's such a perfect, world changing idea!!!!



      /feedingthetroll

    6. Member flytech78's Avatar
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      09-28-2012 02:07 AM #6
      lets do this bring out the trolls........
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    7. Senior Member PineappleMonkey's Avatar
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      09-28-2012 02:30 AM #7
      2 tiny batteries 4 LYFE!
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      09-28-2012 12:33 PM #8
      Quote Originally Posted by AZGolf View Post
      I used to race R/C cars. They ran for 4 minutes on a battery pack that made up half of the vehicle's weight, and that was with hitting top speeds of less than 30mph. Aero drag increases at the square of velocity. Even really slow R/C cars driven at a more leisurely pace would get no more than 20 minutes or so from a full charge back when I was in to them. I know the latest LiFePo cells have better energy density than the 20-30C NiMH cells we ran a decade ago but it's still not magic. A car with a 20 minute range at 20mph would cover 6.7 miles on a charge.
      your rc car also didnt have a stereo, lighting, hvac, etc etc etc

      but OP you really should patent your plus size AA battery idea before someone else snags it up

    9. Member SebTheDJ's Avatar
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      09-28-2012 12:38 PM #9

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      09-28-2012 12:41 PM #10
      The only problem with this genius idea is that I've never seen an RC car with seats.

    11. Member A-Bugg's Avatar
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      09-28-2012 12:44 PM #11
      All my kids R/C cars last for about 30 minutes before they are moving slow, and the batteries take up most of the room in the car.

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      09-28-2012 12:47 PM #12
      Pffftttt...
      I haven't charged my kid's Power Wheels battery since last December.

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      09-28-2012 12:48 PM #13
      YOLO
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      09-28-2012 12:54 PM #14
      What is this, a car for ants?
      Quote Originally Posted by teklord69 View Post
      Scenario: Uphill on two lane hwy. You need to pass and overtake a slower vehicle. That 151 torque won't let you. You will hit an oncoming car the opposite side if you do.

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      09-28-2012 12:56 PM #15
      Quote Originally Posted by slide13 View Post
      am i a genius?
      No.
      Where are we going and why am I in this handbasket?

    16. 09-28-2012 12:58 PM #16
      Quote Originally Posted by P-Body View Post
      What is this, a car for ants?
      It needs to be at least...3 times bigger!

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      09-28-2012 01:08 PM #17
      Quote Originally Posted by SebTheDJ View Post
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      09-28-2012 01:22 PM #18
      Quote Originally Posted by slide13 View Post
      am i a genius?
      you are as much a genius as the half-rotate engine guy
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      09-28-2012 01:26 PM #19
      Quote Originally Posted by SebTheDJ View Post
      Those Feet





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      09-28-2012 01:30 PM #20
      Quote Originally Posted by P-Body View Post
      What is this, a car for ants?
      It has to be at least.......3 times bigger!
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      09-29-2012 03:21 AM #21
      I might be feeding the troll here, but:

      The full-scale auto industry is pretty much doing the best that they can with the battery technology that is available--if you compare to them to the radio controlled car industry.

      I'll save you the boring bits, using a 1/10 scale hobby-grade on-road vehicle as an example, if you actually set it up so it was a true scale model of say a Nissan Leaf, it would need to be able to achieve a sustained speed of 24 mph for 27 minutes, easily done with current brushless motors and LiPo batteries (equivalent to roughly 80mph and 90 min. in real life)--before you guys go, just divide by 10 to get the scale factor, think again and read this article first: http://www.astroflight.com/pdfs/ScaleSpeed.pdf

      Charging it seems is also about the same, about 60 min. to charge a 5000mAh LiPo pack at 1C, vs. the proposed 180min. "fast charge" for the new 480y277v power stations in real life.


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      09-29-2012 04:01 AM #22
      Quote Originally Posted by SebTheDJ View Post



      I just want to know what movie/tv show this is from.....

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      09-29-2012 04:09 AM #23
      Quote Originally Posted by All-Or-Nothing View Post
      I just want to know what movie/tv show this is from.....
      According to my google search, it's part of a naked yoga photo series.
      Quote Originally Posted by apizzaparty View Post
      never thought once to use my lefty for the brake. sorry in my opinion it is dumb.

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      09-29-2012 08:14 AM #24
      Quote Originally Posted by bherman13 View Post
      Lets throw little people


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      09-29-2012 09:41 AM #25

    26. Member patrickvr6's Avatar
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      09-29-2012 09:43 AM #26

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