Where is the standby battery located and what are its voltage and capacity?

Where is the standby battery located and what are its voltage and capacity?

• A. Right nose compartment, 24VDC lead-acid 10.4 Ah
• B. Left nose compartment, 24VDC lead-acid 12 Ah; charged by Left Mission Bus; supplies 180 minutes of power to STBY BUS
• C. Left nose compartment, 24VDC Li-ion 10.4 Ah; charged by Left Mission Bus; supplies 180 minutes of power to STBY BUS
• D. Left nose compartment, 24VDC lead-acid 10.4 Ah; charged by Left Mission Bus; supplies 180 minutes of power to STBY BUS

Answer: (D)

Standby power is meant to keep essential systems alive for a defined period when normal power is lost, so the battery must be in a location that’s accessible for maintenance and reliable in operation. The correct setup places a 24‑volt DC lead‑acid battery in the left nose compartment. It is rated at 10.4 Ah and is charged by the Left Mission Bus, ensuring it stays ready. This battery is designed to supply the STBY BUS for about 180 minutes, providing critical avionics and systems power for the duration of the standby interval. The left nose placement, the 24V lead‑acid chemistry with 10.4 Ah capacity, the charging source, and the 180‑minute endurance all align to deliver dependable standby power. Other configurations either change the location, the chemistry, the capacity, or the endurance, which would alter how long or how reliably the standby power could be supplied.

Standby power is meant to keep essential systems alive for a defined period when normal power is lost, so the battery must be in a location that’s accessible for maintenance and reliable in operation. The correct setup places a 24‑volt DC lead‑acid battery in the left nose compartment. It is rated at 10.4 Ah and is charged by the Left Mission Bus, ensuring it stays ready. This battery is designed to supply the STBY BUS for about 180 minutes, providing critical avionics and systems power for the duration of the standby interval. The left nose placement, the 24V lead‑acid chemistry with 10.4 Ah capacity, the charging source, and the 180‑minute endurance all align to deliver dependable standby power. Other configurations either change the location, the chemistry, the capacity, or the endurance, which would alter how long or how reliably the standby power could be supplied.