Quoted from Pin_Guy:I don't anticipate these batteries lasting another 3 years which will put them at 10 years+
I bet they do make it. Easy way to check. Power on game, remove batteries and test voltage on each. New, they typically read 1.8 volts. I bet yours are still above 1.4.
I tell my customers to replace the lithiums every 5 years, but I've yet to find dead ones. The bad news is that they're getting very expensive and no one wants to sell them locally because then they have to recycle them. Still worth it though.
Battery protip: No matter what type of batteries you use, never use different brands. Make sure all three batteries are from the same 'batch'. I've seen too many mixed batteries leak. Slight differences in potential somehow decreases battery life. Don't do it.
