![Old alkaline household batteries leak a white crusty substance made of potassium carbonate (K2CO3 Stock Photo - Alamy Old alkaline household batteries leak a white crusty substance made of potassium carbonate (K2CO3 Stock Photo - Alamy](https://c8.alamy.com/comp/FJTPC3/old-alkaline-household-batteries-leak-a-white-crusty-substance-made-FJTPC3.jpg)
Old alkaline household batteries leak a white crusty substance made of potassium carbonate (K2CO3 Stock Photo - Alamy
![For nearly the past 10 years, I've found that the Kirkland brand batteries leak without fail. Doesn't matter what size, they all leak. I can't wait for them to find a new For nearly the past 10 years, I've found that the Kirkland brand batteries leak without fail. Doesn't matter what size, they all leak. I can't wait for them to find a new](https://i.redd.it/jqnc8e5ogqm71.jpg)
For nearly the past 10 years, I've found that the Kirkland brand batteries leak without fail. Doesn't matter what size, they all leak. I can't wait for them to find a new
![Amazon.com: BOANV AA Batteries, 1.5V Double A Battery, High Performance Long-Lasting Low Self Leakproof Design 10+ Year Shelf Life Single Use 2A AA Alkaline Battery for Household and Business- 8 Counts : Amazon.com: BOANV AA Batteries, 1.5V Double A Battery, High Performance Long-Lasting Low Self Leakproof Design 10+ Year Shelf Life Single Use 2A AA Alkaline Battery for Household and Business- 8 Counts :](https://m.media-amazon.com/images/I/61XjEqXIxuL.jpg)
Amazon.com: BOANV AA Batteries, 1.5V Double A Battery, High Performance Long-Lasting Low Self Leakproof Design 10+ Year Shelf Life Single Use 2A AA Alkaline Battery for Household and Business- 8 Counts :
![Why do unused unexpired alkaline batteries leak? They were in a box in an indoor closet. The outer two leaked. : r/batteries Why do unused unexpired alkaline batteries leak? They were in a box in an indoor closet. The outer two leaked. : r/batteries](https://i.redd.it/mpgxlkzoed251.jpg)
Why do unused unexpired alkaline batteries leak? They were in a box in an indoor closet. The outer two leaked. : r/batteries
![18 Energizer Ultimate Lithium AA Extreme Performance leak proof Batteries 2043 – ASA College: Florida 18 Energizer Ultimate Lithium AA Extreme Performance leak proof Batteries 2043 – ASA College: Florida](https://i.ebayimg.com/images/g/0tAAAOSw9MtkRQ3o/s-l1600.jpg)