737NG Battery Charger Failure
On a 737NG in flight with 2 engine generators powering normally, with a single battery & battery charger what are the consequences of a battery charger failure?
The FCOM states that the battery provides power to the Switched Hot Battery Bus & Hot Battery Bus.
From the schematics it looks like it could be possible for the AC system to power these busses but the relays are set up in a way to purposely prevent anything except the Bat & Bat Charger powering them.
So with a single failure of a charger, you will eventually get a 'BAT DISCHARGE', and Boeing only commit to giving us 30 mins of battery power before we lose the ability to put out a fire, run the APU and IRS back ups?
Am I missing something here, if not why has Mr Boeing decided that a BAT DISCHARGE is not worthy of a 'land at nearest suitable' in the QRH?