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HelicopterMain Discussion › Amps Calculation
12-01-2007 12:16 AM  9 years agoPost 1
MMike

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Holland,Mi-USA

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If my heli requires 100 mAh per minute to fly.

How many amp ESC do I need?

Again,

Thanks for answering questions of a noob

MMike

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12-01-2007 12:35 AM  9 years agoPost 2
luz_husband

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Nancy, Kentucky

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a little too vague to answer, 100 ma per minute would be 6000 Mah or 6 amps per hour.
what you need to be concerned with is the peak current that it draws under a load.

What heli, motor and battery setup are you using? most speed controls for the 400-450 class are 35 amp and some use 75 amp ESC's or larger.

Impacting the earth one heli at a time

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12-01-2007 12:38 AM  9 years agoPost 3
ErichF

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Sutton, NH

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that's only about 6 amps, by the numbers

100mAh/min = 60000mAh = 6Ah

So, a 20A ESC would suffice.

What heli is this, BTW? Where did you get the figure of 100mAh/min?

Erich

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12-01-2007 12:43 AM  9 years agoPost 4
MMike

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Holland,Mi-USA

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Erich

It's an EP100. 10 oz. tiny 4800 KV motor. presently using a 25 amp.

Battery is 2s 800 mAh

It's heavy.

If I run 6 minutes, it takes 600 to recharge the bat according to my Triton.

Thanks

MMike

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12-02-2007 01:27 AM  9 years agoPost 5
MMike

rrElite Veteran

Holland,Mi-USA

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Please help a dummy

Please help

Again: 100mah per minute flight.

2 cell lipo.

How many amps is this heli?

What is a suitable ESC?

Thanks for your help.

MMike

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12-02-2007 01:46 AM  9 years agoPost 6
ErichF

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Sutton, NH

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Well, if you're only pulling an average of 6 amps, then you may get away with a 10 or 15A ESC.

Erich

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12-02-2007 01:58 AM  9 years agoPost 7
MMike

rrElite Veteran

Holland,Mi-USA

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Thx

Thx Eric

So is the 2 vs. 3 cell issue irrelavent?

MMike

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