Hello Vatorgator,
Thank you so much for the response. All is good in MPH land. I found the battery. On the installation I am working on there are multiple battery configurations on the different units.
The one that failed on me is a single cell that looks like an axial AA battery. Whoever had it before me and mine wired in a UPS to keep the board hot and gave up on the battery.
The UPS failed. I am researching batteries and will probable swap out the bad Sanyo battery and pull the failed UPS.
Thanks again for the information. The drawings and information was most helpful.
::)
