brushless and A123 questions

[Finnster]

OTOH, you could just run upto 8s A123 on the BK. You could do that, get a cooler motor, like a 11XL or so, adn end up in a better place.

The motor would be more eff, so more power to the ground and less heat, amp draw would be OK for a 1P config, so you could lose some weight over a 10cell pack. A 8S1P pack should weigh less than 650g. I'm now running a 10S A123 pack w/ a 1100 kv motor and everything runs dead stone cold. :) Once you go HV you don't go back.