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why does my car slow down?

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Old 09-19-2009, 08:04 PM
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soulgriever
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Default why does my car slow down?

I have a rc tamiya grasshopper. i gave it a 15t hpi 540 motor and a 15t tazer speed controller. i currently have a 7.2v nicd battery the whole setup runs great except ill run it for a few seconds then it will slow down but if i stop running it for a few seconds it runs fine again any clue whats wrong?
Old 09-19-2009, 08:06 PM
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bgballin26
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Default RE: why does my car slow down?

Is the motor getting too hot?
Old 09-19-2009, 09:05 PM
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soulgriever
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Default RE: why does my car slow down?

no thats the funny thing about it nothing is over heating in fact the motor is almost cold
Old 09-19-2009, 09:09 PM
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t9dragon
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Default RE: why does my car slow down?

What plug do you have on the battery?
Old 09-19-2009, 09:10 PM
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Default RE: why does my car slow down?

does that esc have a lipo cutoff?
u want it off for nicd batteries.
Old 09-19-2009, 09:12 PM
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guver
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Default RE: why does my car slow down?

It kinda sounds like a battery problem, maybe a few bad/weak cells.
Old 09-19-2009, 09:23 PM
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Druss
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Default RE: why does my car slow down?

I agree, sounds like a battery problem. If the nicad was bought at the same time as the grasshopper then I'd say it's time for a new pack.
Old 09-19-2009, 09:32 PM
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samguan
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Default RE: why does my car slow down?

i think the battery is bad too.
Old 09-20-2009, 10:03 AM
  #9  
soulgriever
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Default RE: why does my car slow down?

well the esc has Thermal overload protection but no cutoff so im gona do what these guys recomended and try a new battery lets see what happens xD

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