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I just use lithium batteries and install them in the normal battery holder. I'm certain someone is going to mention NVRAM being far superior, and in most cases it really is; but for me, I don't like it when my date and time are off, yes I know its trivial but the only way for these games to keep time when turned off is by having batteries installed
Quoted from Pin_Guy:I just use lithium batteries and install them in the normal battery holder. I'm certain someone is going to mention NVRAM being far superior, and in most cases it really is; but for me, I don't like it when my date and time are off, yes I know its trivial but the only way for these games to keep time when turned off is by having batteries installed
I am still using the same AA lithium batteries in my machine as I was when I made this post ... I'll let you know when they stop working.
Quoted from Pablito350:You've been looking forward to posting that for 3 years. Haven't you?
you betcha, and God willing I'll post it again in 3 more 
Quoted from Pablito350:You've been looking forward to posting that for 3 years. Haven't you?
still going strong ...
Quoted from Pablito350:You've been looking forward to posting that for 3 years. Haven't you?
Quoted from Pin_Guy:you betcha, and God willing I'll post it again in 3 more
It's been another 2 years since my last post and 3 years since the above quote so time for an update. I'm happy to report that the original three Energizer lithium batteries I installed in my STTNG in 2015 are still in the machine and going strong holding settings and scores; additionally, none of the lithium batteries in any device I own (which is every device that takes 9v, AA, or AAA batteries).
My STTNG is turned only turned on a dozen times a year or so at most these days and these batteries continue to hold up; the date is wildly inaccurate, but the time holds within an acceptable range. I assume the ASIC that controls both date and time was not designed to update the date when the machine is off for months at a time.
I don't anticipate these batteries lasting another 3 years which will put them at 10 years+ ... but who knows. I do plan to update this thread when I turn on the machine and get the dreaded Reset to Factory Defaults message.
Quoted from G-P-E:These were used in Gottlieb System 3's. I have sold a lot of Dallas Semiconductor (Maxim IC) 1210s to replace parts that were destroyed by lithium battery corrosion.
As a board repair person you are going to see an abnormally large percentage of these issues, especially if the boards were in a storage building with no climate control for a decade or more. The boards you are referring to are 30 years old and if you leave a coin cell battery in a device for 15 years after it already lost power I would not be surprised that it leaked; personally, have never seen one leak and I'm willing to keep AA Energizers in my own CPUs until they actually fail to hold the memory.
One question for you G-P-E ... How many AA Energizer Lithiums have you seen leak?
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