So i'm a CFI/CFI-I/MEI and taught/recieved my ME rating in a 2006 seminole. I decided to switch Flight schools and i am now teaching in 4 older seminoles. They don't have un-feathering accumulators so an engine restart can take awhile. My question is, is it normal for all of the aviaonics to shut off then restart during an engine restart for these older seminoles? The newer one that i flew didn't have this problem, neither did the older Seneca i flew around in.. If anyone can shed some light ont his for me that would be great. So far the only theory i have is that the system voltage spikes very high during the restart and it overloads the system. but again, i'm not really sure. thanks