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Title: Help needed for Battery config. and ESC rating! Post by: kartikmadhira on June 02, 2011, 09:54:13 AM Hello RCindia,
Im having a little problem over the Batt. rating and ESC rating.My question is that my motor has a rating of 15.5 A and ESC has a 20A rating.SO can i use a battery of 1000mah at 30C(3s) for my setup?will this be too much for the ESC or is it that the ESC will take only the amount required? Title: Re: Help needed for Battrey config. and ESC rating! Post by: iamahuman on June 02, 2011, 10:10:36 AM The ESC only draws how much the motor needs.
Title: Re: Help needed for Battrey config. and ESC rating! Post by: kartikmadhira on June 02, 2011, 10:12:02 AM SO i can use even a 2000Mah 3s 30C battery?
Title: Re: Help needed for Battrey config. and ESC rating! Post by: iamahuman on June 02, 2011, 10:29:15 AM it will add weight
Title: Re: Help needed for Battrey config. and ESC rating! Post by: kartikmadhira on June 02, 2011, 10:30:36 AM NO problem...but chalega naa???
Title: Re: Help needed for Battrey config. and ESC rating! Post by: iamahuman on June 02, 2011, 10:46:45 AM shouldn't be a problem IMO.btw,are the C ratings you mentioned the continuous or burst ratings?
Title: Re: Help needed for Battrey config. and ESC rating! Post by: kartikmadhira on June 02, 2011, 10:48:11 AM continuous..
Title: Re: Help needed for Battrey config. and ESC rating! Post by: iamahuman on June 02, 2011, 10:52:01 AM alright.All this is assuming you have the right motor prop combo so that it won't draw more than the maximum current rating.
Still,wait for members more experienced with aircraft. Title: Re: Help needed for Battery config. and ESC rating! Post by: kartikmadhira on June 02, 2011, 03:24:44 PM Guys, i need help.PLease..especially from seniors!
Title: Re: Help needed for Battery config. and ESC rating! Post by: ashutoshn on June 02, 2011, 04:04:42 PM Have u decided on which prop to use on your motor ?
Title: Re: Help needed for Battery config. and ESC rating! Post by: kartikmadhira on June 02, 2011, 04:06:55 PM 7*6 as recommended. by the data available on hobbyking for 1534 kv turnigy motor having 730g thrust and 16A rating
Title: Re: Help needed for Battery config. and ESC rating! Post by: ashutoshn on June 02, 2011, 05:24:15 PM The 7x6 prop for FC2812 generates a thrust of 730g @15.5amps, with motor's max amp rating being 15.5. So for a 7x6 you should be at a full throttle for short durations only else risk motor burn out.
With a 15.5A motor rating the ESC needs to be at a ~30% more Amperage. So a 20A ESC will work for this motor & prop. 25A ESC will be more safe. Battery voltage: 3S, 12.6v. while motor's rating is 12.6 to 16.8v. So 3S battery should work. Battery capacity: 1000mAh*30C = 1Ah*30 = 30Ah. Motor rating is 15.5A which is 50% less than battery capacity. So this battery will work and it won't be loaded with current demands by the motor. Basically battery capacity needs to be greater than what a motor can maximum demand. So u don't need to go in for a 2000mAh* 30C battery. Still if you wish to go for a higher capacity battery, choose something in the range of 1000 - 1500mAh keeping C rating constant. Title: Re: Help needed for Battery config. and ESC rating! Post by: kartikmadhira on June 02, 2011, 07:16:43 PM Thnx a lot ashutoshn
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