Thanks for the prompt response.
Normally the Batteries are not connected to the Main and APU Battery Busses
I thought the Batteries were connected to their respective Battery Busses (through their Hot Battery Busses) every time the Battery Switch was selected on? I just wasn't sure whether power could flow back to the batteries from the Battery Busses...
The loss of AC 1 will probably keep you rather busy, so don't forget about the Batteries
Now I'm curious, as our FCOM has very little information on this... aside from A/Throttle, EPR limit indications, LNAV/VNAV, Antiskid and left side pitot heat what else happens?