My replacement came with a battery that was corroded badly. I was able to open it and remove the batteries and save the battery cage.
Haven't looked yet, but will be searching for batteries with solder tabs. Soldering regular batteries can be dicey and hazardous. Saw somewhere on the net someone had taped together some batteries and got it to work.
The battery cage had a metal tab that ran down the side that made contact inside the camera. The other end made contact at the base of the battery. As long as the polarity and voltage is correct, it should work.
Without a battery, the camera still functions at about 1/100 sec.
When I can find the right batteries, I'll post the outcome. It looks like it will be possible to make a battery pack without the cage.
Let me know if you get a battery pack and how it works out.