Found an Eveready Industrial still working out in the Wild!

[letschat7]

These batteries seem like from the mid to late 90s, they haven't leaked, and still run the 1970s era light.

 

[snakebite]

I wonder how dried out they are now.
Bet internal resistance is high .
Had some still in package from 70's that read 1.52v
But esr meter showed 2.9 ohms!
A fresh one reads about 150mohm.

 

[ampdude]

They made alkalines way better back in the 80's and 90's. I never saw any problems with batteries leaking all the time until the late 2000's.