Juno 60 battery location mod?

[gdh]

I decided to finally open the top and check to see if any previous owner had replaced the battery. I've owned the Juno 60 for 7 or 8 yrs, no real storage issues until this past week. The bd would not stay in any selected patch or even manual mode. Disconnected the power, open the keyboard up and no battery, not the original nor a replacement soldered in. Since it saves patches the battery must have been relocated to the other side of the bd but I am not going to unscrew everything. Closed it all up, plugged in and all is working fine again. I left the keyboard on for over 8 hours yesterday, playing it occasionally throughout the day and no issues. The issue must have been caused by last Sunday's power outage and resultant surge. I have my synths etc connected through a couple of high quality surge protectors. They did their jobs thankfully, as many local business networks had to have IT come in and fix the issues. I fixed my drs office network.

Anyone else have their battery located in a different position?