50g - strange power on problem

[Geoff Quickfall]

Sorry, don't have a 50 so it was an assumption, with a retention coin cell then no super cap required; however, corrupt boot sector wil still need to be cleared and residual charge in non super caps residing on the PCA may retain enough current to hold corrupted boot sector.

This regardless of battery removal over an undefined short time period of non specific length :-). There, a vague but purposeful statement.

Just a thought as I have not tested this out but have seen the like in similar battery backup and super cap systems.

Funny history lesson: no backup ram, then separate battery backed up ram, then super caps and now back to battery backup : ignoring flash ram of course.