Would this work as a clock battery?
http://www.ebay.com/itm/Dantona-4-5V-600mAh-Alkaline-Photo-Battery-TR133A-/400449243601?pt=Batteries_Chargers&hash=item5d3ca289d1
http://www.ebay.com/itm/Dantona-4-5V-600mAh-Alkaline-Photo-Battery-TR133A-/400449243601?pt=Batteries_Chargers&hash=item5d3ca289d1