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kis this battery the right one for me

Old 04-13-2009, 03:43 PM
  #1  
aofer
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Default kis this battery the right one for me

hi, i'm building a house of balsa decathlon kit,
i already bought everything besides the battery
my motor is :
[link=http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=7705&Product_Name=TGY_AerodriveXp_SK_Series_28-26_1000Kv_/_240W]motor[/link]
i'm going to use this controller:
[link=http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6460]ESC[/link]
the servos are:
[link=http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=662]servos[/link]
and i'm gonna use a 9x6 prop
anyway i was recommended to use this battery:
[link=http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6790]battery[/link]

is this the right one for me?
i noticed that it only has 15c discharge rate, is it enough? how can i tell?
i was considering going for the more expensive :[link]http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=7313[/link]
if the cheaper one is not enough...
so what should i do?
Old 04-13-2009, 07:24 PM
  #2  
Dr Kiwi
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Default RE: kis this battery the right one for me

That battery should be fine... 15x1300 = >19A... that motor should not be propped to draw more than about 12A-15A anyway... and from the reviews I'd guess that a 9x6 might be at around 15A so I'd suggest a 9x5 GWS HD.
Old 04-14-2009, 12:32 AM
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aofer
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Default RE: kis this battery the right one for me

and what if i want to stay with the 9x6 do i have to get a stronger battery?
Old 04-14-2009, 02:37 PM
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aofer
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Default RE: kis this battery the right one for me

anyone else is willing to share his thoughts?
Old 04-14-2009, 08:02 PM
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Dr Kiwi
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Default RE: kis this battery the right one for me

IF the 9x6 draws 15A, my concern would be for the motor - the battery would be fine. I just suggested 9x5 GWS HD since I know that it will draw less than the 9x6 yet give you much the same thrust.
Old 04-16-2009, 11:38 AM
  #6  
aofer
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Default RE: kis this battery the right one for me

ok, how can you tell that 15A would be too much, and how did you calculate that the 9x6 prop would draw it? i would really like to know..
so what is the worst thing that can happen to the motor? still haven't decided about a battery, and i might consider changing prop, would that prop give me good flight characteristics?
Old 04-17-2009, 09:45 AM
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aofer
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Default RE: kis this battery the right one for me

anyone?

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