I recently pulled out my scope after a long period. I replaced the main 12V battery pack with a 12V power supply and noticed a CR type 3V battery underneath it that said do not remove installed at factory. Well it was dead, so I replaced it also as I did with the same on my red dot finder scope. What does this battery do? I can find no information on it and am assuming that it maintains clock time as in a computer. Am I wrong or do I need to do more like update. Thank you all.
PS it's a Meade DS 2000.