I have a Cue Ball Wizard and a Shaq Attaq that I have had for over 10 years and never have replaced the batteries in them. They are still working great. Retaining high scores and everything. I see they have the coin type of battery on the board. Now I don't want to jinx myself but why have these not failed yet? I hardly ever play them as I have been buying newer games all the time and never really thought about them to much. I searched the forum and didn't find very many posts about them other then saying you probably shouldn't replace them with a remote battery pack. I have no soldering skills what so ever, so me doing anything about them is not possible. Should I find someone to replace them or just wait until they actually fail. I looked at them and see no corrosion or anything. Could they have been modified somehow in order for them to last this long or am I just extremely lucky? What should I do?