I hear you... my 3.0 amp hour drill's batteries quit holding a charge, so I searched for replacements... too much...
I also went to the battery rebuilder ("Batteries Plus" around here) and they were still too much...
A new Hitachi 3.0 amp hour drill was around $275 at the big box stores, so I looked for it on Amazon -
it was $139! I don't know what the deal was (it ain't $139 anymore) but I got one - it rocks!
http://www.amazon.com/gp/product/B000H2P060/ref=ox_ya_os_productMost tool batteries seem to be around 1.7 amp hours... It is nice to have a drill that is both strong,
and lasts a long time... my main tools for building Carolyn's barn (there's no power there) were my
old hitachi 3.0 amp hour drill and a DeWalt 36 volt 7 inch circle saw -

-Mike "can't find the chainsaw picture <g>"