These are a big improvement over the smaller batteries offered with the a7ii. Roughly twice the shoot time on the a7Riv as on the a7ii. Other than that, this is the usual quality offering of Sony for batteries. Sure, I use some 3d party batteries, but I like to have a few Sony originals for security. I know the Sony battery will work.
I've been shooting with Sony batteries since ... 1999 (don't hold me to that precisely) I still have some of the original InfoLithium batteries that came with my Mavica, and they still work. Not like brand new, but they still work.