Top critical review
Garbage. Four batteries in as many days
September 24, 2018
I was excited to find some decent value CR2032 and whilst I should have been more wary of the "freshly packed by Sony" title and the only "fulfilled" by Amazon, I went ahead and ordered anyway. I have several devices using these batteries and on average will get 1-2 years use each. The first battery from the package did last a few months in my heartrate-monitor but eventually gave out. I replaced it with another which worked... for a day. The next day I replaced with another. That lasted two uses. The next one lasted only one, my ride to work, but not the return. The fourth in as many days has lasted four times longer, that is 2 days so far, but I don't hold much hope. It's a similar story in the TPMS devices we use on our car. They appeared to all work fine to start with but over the course of a couple weeks, they all started to die.
Yes this is an attractive deal and you could be lucky and get all semi-decent ones like my first from the pack but I'd honestly avoid this and try to buy genuine batteries 'cause I don't believe for a minute these are actually Sony.