Diamond DA 40 Flight Manual page 111

DA 40 AFM
These items of equipment can be supplied with power by the
battery for at least 30 minutes. Economical use, in particular
of the Pitot heating, and switching off equipment that is not
needed extends the time during which the other equipment
remains available. During the 30 minutes period, the airplane
must be landed at a suitable airfield.
For cases in which the battery capacity is not sufficient to
reach a suitable airfield, an emergency battery is installed in
the IFR model, serving as an additional back-up system for
the attitude gyro (artificial horizon) and flood light. This battery
is switched on with the Emergency switch. It lasts for 1 hour
and 30 minutes when the flood light is switched on.
%
(ii) Alternator Failure on the Ground
%
%
An alternator failure may also be indicted on ground with the
%
engine running on IDLE.
%
1. Engine speed . . . . . . . . . . . . . . . . . . . . . . .
%
2. Electrical equipment . . . . . . . . . . . . . . . . . . OFF
%
3. Ammeter . . . . . . . . . . . . . . . . . . . . . . . . . . . check
%
%
If the caution light does not extinguish, and the ammeter flashes and
%
reads zero:
%
-
END OF CHECKLIST
Doc. # 6.01.01-E
Terminate flight preparation.
Rev. 8
NOTE
01-Dec-2010
Emergency
Procedures
1200 RPM
Page 3 - 37