CS>power supply

[Tom Bellino]

We have a AC adapter  120AC to 9Volt ,  500 MA . Can this be used  in place of 
a 9 volt battery?
We also have 3 l2 V 2ah batteries with charger. Is it possible to use 2 of 
these  as a power supply?
Just recently joined the list and have a ton of questions and will appreciate 
all the help I can get. Greatly confused by some of the terms used in posts.
Tom Bellino the bookmender
bookmend...@bcg.net
www.bookmenders.com