I have been running 7-8 game cameras for years and for some reason I am now having problems with AA batteries not lasting but a few days before dying. Have always bought Energizer off Ebay in the 100 or 144 packs and had good luck until this fall. When tested on a voltmeter the new batteries say 1.55 volts which I understand is a good reading for a AA battery. It all started when I bought some Energizer "Industrial" batteries that have the yellow label instead of red and black. Anybody else had this happen? Are my cameras just worn out?