What is the minimum charge on your EFB to start a day?

• A. 60%
• B. 80%
• C. 90%
• D. 100%

Answer: (B)

Starting with a reliable amount of power is about ensuring you have enough reserve for the morning workflow and any unexpected tasks after you begin the day. With an 80% charge, you have a healthy margin to run essential apps—loading and reviewing charts, flight plans, weather, and performance data—without worrying about the device dying mid-preparation. The power draw from these apps and background processes can be noticeable, especially if updates or data syncing happen in the background. Beginning at 80% helps prevent interruptions if you need to reference information during preflight or early taxi, and it keeps you covered if you encounter a longer sequence of tasks than expected. Charging more aggressively to 90% or 100% isn’t necessary as a daily minimum, while starting at 60% or lower risks running into power issues when you most need access to critical materials.