These batteries were too good to be true. Apparently they are panasonic and were delivered extremely quickly but I'm afraid to say that they are almost useless. They did work but I am using them in my kitchen scales which I use maybe once a day at most and after less than a week, the batteries stopped working. Prior to this, the battery that was in there lasted for over a year so that is the duration I know they should last. I thought it was possibly a problem with just one of the batteries, but the second one is now in and has been used a few times and is almost dead.
Please note - I have recently amended this review. The second battery has managed to keep going for over a year now, although it not completely reliable in that the weight displayed keeps changing (sometimes goes up, sometimes goes down) even when nothing is on the scales.