Once a year, its a chore, but a good idea to replace the Batteries in ALL your pinball machines.
With every retailer having batteries very cheap for Xmas toys etc, its a great time to change out the batteries on all of your machines and protect your expensive pinball toys from the dreaded acid corrossion.
I have to do 30 dam machines today and it will take my half of the day i reckon. So I am off to WOW Sight n Sound to raid the battery stocks and keep the machines acid free for the next 12 months.
Check ya batteries on ya pinballs guys and keep them acid free. !