Bish, Welcome to Sirius ownership! I did the very same tests on old battery packs when I bought mine, and had the same positive results. I love my Sirius charger. I broke the switch on mine as well, and found a replacement at Radio Shack for just a few bucks.
Maybe I'll see you at some of the IMAA meets this year...or maybe you'll come fly with us at the Abbey Hawks field?

Cheers, Nigel