ORIGINAL: mat_koski
If i wanted to run a brushed/brushless speed 400 motor on a plane weighing around 10-12 oz, how many Nimhd or Nicad cells should i use?
Should I go with nimhd or nicad?
What capacity of battery should I use for 15 min flights?
Thanks..
If you intend to stay with brushed motors, at least get Lipo batteries... you are throwing good money away getting NiMh (and a charger to suit) if you are going to go Lipo and brushless in the near future. For now you could get Lipo and a charger to suit... run your brushed motor 'til it dies....and the next step up to a brushless motor will be easy.
A geared Speed 400 shouldn't be asked to draw more than 8-10A on 2s Lipo (if you have a 7.2v nominal 400, you may get away with 3s Lipo and 8A max).
To get 15 minutes at 8A you would need around 2100mAh capacity.