Syseng68k, post # 1496
I'm not disagreeing with design issues, however if the only source of power is the battery, then it's a question of how long before the plane gets to the ground, if the battery lasts that long then it's fulfilled it's purpose.
If there is one other source of power, wouldn't the contactor remain powered? The battery system doesn't exist as self-contained system although there are degrees of isolation.