Thats actually an good explanation, and i can confirm the part about a cold battery not performing very well, but if it actually helps to cool it down it is probably not very much, i have some of the first laptop battery's laying around, both the hole battery and the cells that are VERY old, and they still have very good capacity despite being over 5 years old some are close to 10 years old and still work fine, plenty of capacity and such.