am i on the right track?

[rainfly]

I am using two, turnigy graphite 4s packs in parallel. the bat packs use 10awg wire and xt90 connectors. my new esc is 300a and 8awg wire. the motor is 2200kv. if my math is good, it should use 240w at max amp.
does that amperage transfer to the battery leads? regardless wouldn't be 14.8 volts in? the 10guage should be ok right? the stress on the wire and connectors should be between the esc and the motor. is this correct?
I guess I am asking is. if I should worry about the 10awg in ? I am using 8awg out and 8mm bullets to the motor, although the motor leads are not 8awg.

[Fluid]

Your weak link is the low-amp connector between the ESC and the packs The 10ga wire will handle most reasonable amperage. How does your "math" calculate the 240 amp maximum? Exactly what boat and motor?


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[rainfly]

it is a fighter cat cheetah, with a leopard 4082, 2200kv. leopard specked the motor at 3500 watts at max. 3500/14.8=236.48
I am switching all the connectors to 8mm bullets. should I shorten the 10awg from the batteries a bit and make it up on the 8awg pig tails?

[Fluid]

First, a motor like that can pull well over 250 amps, given enough battery and prop. The motor "rating" is usually pretty much BS. If you tried to pull near 250 amps continuous the motor (and likely the ESC) would not last very long, probably less than the first pack. Anywhere over 200 amps is pushing things and will shorten the Leopard motor life.

Second, all wires should be as short as practical, but from what Castle techs told me, short power wires are more important.



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