On my last pair of hearing aids, I checked out a half dozen brands, Energizer, Rayovac, BJ’s (private label warehouse store), Duracell, etc.
I did it this way, put brand-A in one aid, and Brand-B in the other. Wrote down day installed and date died.
Then reversed them and repeated the test just in case one aid drained batteries faster than the other (it did not).
The winner of that round went on to the next. I found they were all pretty much the same within a few hours of each other.
I ended up using ZeniPower at Amazon because they were the lowest priced and performed as well as the others.
Of course your hearing aid current draw may differ from mine so your results might not be the same.
Bob