Well I'm a bit stumped by this... because my Mother owns a Panasonic Digital Camera which will not work with any other branded cells but Panasonic.
Any old 1.5v cell should operate ANY device, but Mother would not go along with this, so I bought her this nice offer of "Buy 4 - Get 4 Free" - an excellent offer at a sparingly decent price. Her Camera worked when they were installed.
Is there something different about "Panasonic's Electricity" I wonder ?
If anyone else has experienced this product-specific phenomenon, I'd love to hear about it.