Hello Captains...I have a question regarding the 737-800's battery...specifically Delta's.I'm setting up the NGX, and I'm wondering if the majority of Delta's 737-800s have dual or single battery packages.I thought the dual battery package was implemented on aircraft fitted with an ISFD. At this current time, only 2 Delta 737s have an ISFD. That'd suggest the majority have a single battery package installed. However Ryan Schmidt of Delta VA seems to have a different opinion.http://www.deltava.org/thread.do?id=0x192b3So what do you guys think?

The ISFD has its own dedicated battery, which is why it cannot be switched off from the flight deck, the battery gives it 150 minutes of operation, and it is charged when the aircraft is in operation, so theoretically it should always be topped up. For the real nerds out there, the circuit breaker for its battery charger is is on the P18 panel, which is on the rear bulkhead on the top right hand side.Al

Well I knew that much. :PI'm just going to assume the dual battery option is only available on line numbers without the ISFD.

Without ripping the panels off, or asking one of their technicians, I wouldn't know, although this might help to narrow it down:http://www.b737.org.uk/electrics.htm#BatteriesAl