Originally Posted by
teknorc
I wouldn't bother with 5s. Go straight to 6s. Anything 1200-1400kv would be great. To get run time (and depending on your driving style), you'll need ~4500mah to make 15 minutes.
Is the battery tray same dimension as EB48? Some nice ThunderPower 6s out there, but they're like 156mm long.