/members-area/personalblogs/b/very-compact-s-blog/posts/vy-canis-majoris-part-0426TH JULYBatteryWith the battery holder soldered in it was time to find a suitable battery.I could not find any specific reference to a particular type of battery in the manual so I needed to consult the schematic diagram and the battery holder data en-USTelligent Community 12