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dual brushless motor/esc/battery questions
Topic Started: Dec 21 2012, 12:29 AM (728 Views)
Gumbajv

I'm going try a pair of outrunner brushless motors in the SR. The motor specs: current capacity: 35a/60s, max efficiency12-23A, max voltage 14.8, 3s lipo per motor. Using 2 - 35 amp esc's. Can I run this off of one battery or do I need two wired in series. How do I figure out which battery or batteries to use.
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Glacier Girl

You can use one battery, but it must be capable of sustaining a constant 24-46 amp draw, with a burst capability of 70 amps. 2 X each motor to give those figures.

Best bet would be to hook up your set up and get an amp reading of what the motors are actually going to pull at wide open throttle on the ground.
Then use that to determine you pack needs. Use a pack or a pair of packs wired in parallel to provide all the power the motors will need to run your test. Get an accurate reading, using a low capacity pack will give you a faulty reading.
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Smoke6
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I am running a Hobbyking 2S 25C 5000mAh pack and it doesn't even get warm. I highly recommend them. I made my own parallel adapter for two ESCs. It takes a little soldering skill. You could always use a power distribution board: http://www.readytoflyquads.com/power-distribution-board
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