Posts: 149
Threads: 22
Joined: Feb 2009
I guess you could use dry cells in it but it would get expensive to operate since dry cells aren't rechargeable.
The ThinkJet battery uses 6 sub-C NiCads. (rechargeable).
To open it, first look at the sides and note the two pegs sticking out near the top. You have to release them to get the top off. OK, ready. Remove the two screws in the top. Then pry the sides away from the top to free the pegs the stick in the holes in the side and pry the top up. Sometimes it's hard to get the top off the first time since they put double sided tape under the batteries and on top of them. That glues the batteries into the case and glues the top to the batteries. You'll also have to push the release latch in for it to clear the top edge of it's opening.
Joe