I have experienced numerous leaking Duracell batteries well before their expiration dates. I have 4 brand new 20 packs of AAA batteries with a best by date of DEC 2023 and all the cells are leaking. These were stored in our basement, which is climate controlled, finished off, and dry. I have experienced leaking in several devices including flashlights, remote controls and computer mice. I will NEVER purchase Duracell batteries ever again. Duracell was once the premier brand that you could count on. The quality and dependability are worse than old store brand batteries from the 80's. What a shame that quality can destroy a brand. I regret spending my money on these batteries not to mention the damage they have caused in my devices. Avoid Duracell batteries and choose Energizer or alternatives.