![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
![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/FJTPC8/old-alkaline-household-batteries-leak-a-white-crusty-substance-made-FJTPC8.jpg)
Old alkaline household batteries leak a white crusty substance made of potassium carbonate (K2CO3 Stock Photo - Alamy
![Closeup of used battery with traces of rust and corrosion, selective soft focus. Macro shot of lot of old leak batteries, top view. Electronic hazardous waste, recycling concept Stock Photo | Adobe Closeup of used battery with traces of rust and corrosion, selective soft focus. Macro shot of lot of old leak batteries, top view. Electronic hazardous waste, recycling concept Stock Photo | Adobe](https://as2.ftcdn.net/v2/jpg/04/99/98/41/1000_F_499984138_c31kxlsXuGIG47lgFgfITvslJAmgBA2S.jpg)
Closeup of used battery with traces of rust and corrosion, selective soft focus. Macro shot of lot of old leak batteries, top view. Electronic hazardous waste, recycling concept Stock Photo | Adobe
![Leaking batteries in old gaming consoles: After old batteries leak and cause corrosion like pictured in this old Game Boy, what happens if the battery terminal isn't cleaned outside of being wiped Leaking batteries in old gaming consoles: After old batteries leak and cause corrosion like pictured in this old Game Boy, what happens if the battery terminal isn't cleaned outside of being wiped](https://preview.redd.it/leaking-batteries-in-old-gaming-consoles-after-old-v0-z4gy9knwc8x91.jpg?width=640&crop=smart&auto=webp&s=e30ed05f07a753d577b0412b57578af32f4c5bc0)