That's a great deal.
Always good to have back ups or extras to share.

I've been surprised at how many batteries that I've had leak. Even name brand in the package and under expiration. All brands. But some better shelf life than others. 123s, what are those, lithiums? Best for storage, but costly for big draw daily drivers.
My problem is that when there's been a sale, I stock up so there's a reserve when I need them. They are put in the closet. When I need them, they have leaked and even with the receipt there with them, its past the 30 day return date.

Rechargeables that are quality seem ok.
For experts on the subject, there's a Candlepower forum on everything flashlight.....mods. Sources of cheap batteries and reviews.