How long does the DA20-C1 battery last?

How long does the DA20-C1 battery last?

• A. 60 minutes
• B. 15 minutes
• C. 45 minutes
• D. 30 minutes

Answer: (D)

Battery endurance is about how long the electrical system can run on stored power if the alternator isn’t supplying energy. In the DA20-C1, the battery is sized to provide power to essential avionics and lights for a limited backup period, roughly about 30 minutes. With the engine running and the alternator charging, you don’t rely on that backup time, but if the alternator fails, you’d typically have around half an hour of usable battery power. The other options don’t fit the aircraft’s backup-power capacity: they would imply significantly more or less reserve than what the published backup endurance supports.

Battery endurance is about how long the electrical system can run on stored power if the alternator isn’t supplying energy. In the DA20-C1, the battery is sized to provide power to essential avionics and lights for a limited backup period, roughly about 30 minutes. With the engine running and the alternator charging, you don’t rely on that backup time, but if the alternator fails, you’d typically have around half an hour of usable battery power. The other options don’t fit the aircraft’s backup-power capacity: they would imply significantly more or less reserve than what the published backup endurance supports.