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Old 02-01-2008, 03:58 PM   #1
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brushless motors

hi guys,

ive bought two 3800rpm brushless motors to run in my bat boat, can any one tell me what battery (s) to run?

thanks
john
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Old 02-01-2008, 07:54 PM   #2
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woulda said its pretty impossibly to say without knowing exact spec, like the voice coil in speakers/subs some can handle 50 watts and some 2000+ it depends massivly the model,
easiest way would be to start with say 4 cells and then add a cell each time and keep an eye on the temp of the motor, if it starts to burn up then loose a cell and stick with that.
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Old 02-01-2008, 09:24 PM   #3
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What motor is it , and do you have speed controllers yet?
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Old 05-01-2008, 01:58 PM   #4
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Country: england
Location: southampton
Occupation: Self employed monkey
Interests: racing, gettin wet.
Boat name: sea j marine
Boat make: 12ft scorpio,14 fletcher,16 argo
Engines: 25hp merc and 90 yam
Cruising area: southampton water

Join Date: Nov 2004
Location: southampton
Posts: 888
the motors are revolution, and i only have a reciever and transmitter, nothing else.

do i have to run special batties?
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Old 05-01-2008, 03:11 PM   #5
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wouldnt have thought so, the higher the Mah the longer the batterey will last,
if you want to run th motor at say 12 v you just select the type of batterey and make that voltage up with as many as u need
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Old 05-01-2008, 05:22 PM   #6
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Country: england
Location: southampton
Occupation: Self employed monkey
Interests: racing, gettin wet.
Boat name: sea j marine
Boat make: 12ft scorpio,14 fletcher,16 argo
Engines: 25hp merc and 90 yam
Cruising area: southampton water

Join Date: Nov 2004
Location: southampton
Posts: 888
can some body point me in the direction of some decent batteries?

thanks
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Old 05-01-2008, 10:57 PM   #7
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OK what physical size are the motors?
what propshaft setup have you got, what props do you intend to run.
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Old 06-01-2008, 07:37 PM   #8
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Country: england
Location: southampton
Occupation: Self employed monkey
Interests: racing, gettin wet.
Boat name: sea j marine
Boat make: 12ft scorpio,14 fletcher,16 argo
Engines: 25hp merc and 90 yam
Cruising area: southampton water

Join Date: Nov 2004
Location: southampton
Posts: 888
i dont know anything about rc boats, there about 2inches tall, by about half an inch wide, im running outboards aswell.

john
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