This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
Yes. A number of users have created programs to Save and Restore BatRAM values. The one included as a FAQs Resources file is named "BATRAMMER". It is in file R007BATRAMM.zip. After unzipping the downloaded file, use ShrinkIt or GS-ShrinkIt to unpack the file. By: Rubywand Related FAQs Resource: R007BATRAMM.zip (program in ShrinkIt file)
 
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