Ballpark figure for size 13 Costco hearing aid batteries vs. Rayovac 13s?

I know that many factors affect it, but the Rayovacs seem to last a bit longer than others. Thanks.

2015-02-11T15:52:15Z

SORRY FOR THE CONFUSION. I'M LOOKING FOR HOW LONG THEY LAST, NOT WHAT THEY COST.

?2015-02-11T15:50:11Z

Thanks. I know what they cost. I'm looking for an indication of how long they last. Some brands last as little as two or three days; others go for a week or more under the same conditions.

Pamela2015-02-05T22:46:03Z

Call the store & ask them. Even if we knew, ehich is slim, what our store is it may be way different at your store. Taxes vary widely also.