I am sad to report how disappointed I am with the quality of this formerly superior product. Up until 3-5 years ago, I had _NEVER_ experienced a leak from a Duracell battery. I didn't care how much they cost, I didn't care what the competition's performance or warranty was, in my experience Duracell _NEVER_ leaked. With all the failures I've seen in the last several years, that's clearly changed now, and with a couple recent failures I had decided to start tracking a lengthly list of all the devices I own with batteries, when the batteries were put in the device, and what the 'fresh until' date was. My hope is to minimize the risk of damage due to leakage by replacing batteries long before they are exhausted. I was willing to continue to still consider Duracell BUT, right now I am staring at a package of bulk (40 count) AAs, purchased in the last year or so, labeled 'best before 2022' and 'guaranteed for 10 years in storage' and in it is a battery WHICH HAS ALREADY LEAKED. That's right, a never used battery, labeled "Dec 2022", has already failed. I was about to swap all of these batteries into various devices, but why would I put these batteries in anything? You would be wise to consider going back to whatever it was you were doing 5+ years ago.