Yes, the refrigerator will help them.

Something doesn't quite add up though:

Capacity is directly related to flight time on any given setup. If the battery "cycles" at the rated capacity then the only way to shorten the TIME is to increase the current. Furthermore a 15-30 minute flight averages 2-4C , yet a 30 second to 2 minute flight is 30-120C. This doesn't add up.