Fast explanation. That motor is rated for 30 ampère continous use. Not 30 ampère hours

If you want to run it for an hour at the rated load, yes. But as our fights are at longest 5 minutes, you'll need a lot less. About 10 times less. Also, you're not running all out for the full fight.

Kashei uses a 5000mAh 4S pack. Just to give you an idea.