How many MAIN batteries?
Quote from TURIN:
“Lots of a/c have only one battery, many don't even have a separate APU battery.”
Yes, but in my limited experience large modern a/c which depend on complex electrical systems have more than one MAIN battery, even if they have a dedicated APU-start battery as well (which many don’t).
The A310 has 3 main batteries, which are also used to start the APU. Each battery has a separate cockpit switch, and separate indicators of Volts, Amps and ON/OFF on ECAM.
The A320 has 2 main (NiCd) batteries, which are also used to start the APU. Each battery has a separate cockpit switch and separate indicators of Volts, Amps and ON/OFF on ECAM.
The A330 and A340 are like the A320, but with the addition of an APU battery. The A380 has two main batteries, but I’m unable to get further details.
Chris
Last edited by Chris Scott; 23rd Jan 2013 at 23:16.
Reason: Incorrect reference to B777 having two main batteries deleted.