Hello,

Batteries Plus (www.batteriesplus.com) carries the 22 1/2 V battery required for the subject camera. The cost was $9.98 each. The model is Eveready No. 412. If you go into the website, you'll have trouble finding it. However, if you go into the "Cross Reference" section and scroll down to 22 1/2 V you will find it. Just look for Eveready No. 412. There are 200+ stores in the USA, so there may be one near you. Otherwise you can call them and order one.

It should be noted that Midwest Photo also has this battery. I'm just glad to find another source. Radio Shack told me they don't carry it anymore.