Thanks for the replys and links. I'm glad I asked first before
tearing off the metal tabs and trying to solder jumpers to the battery
ends! Looking at the prices for the exact same sub C Sanyo battery as
used in the 18v Sears unit at the Nicad Lady website, my $23 for the
15 batteries out of the sears battery pack is quite a bit better than
$4+ each from the the online store.