New battery kills battery performance?

Hey Everyone,

I have an Aqara Temperature sensor that has been happily running for more than a year. I like to swap device batteries when the percentage is below 20%. I did this recently with some new local store-bought CR2032 Energizer Lithium batteries, but it appears these suck bigtime.

Is this an issue with the device or are these just bad batteries? Where is a reliable place to get good batteries?

Thanks for your help!