Which of the following statements is true regarding the Post Radio's battery life when employing the 10/10/80 formula?

The statement that indicates the battery provides sufficient wattage for 7 hours when employing the 10/10/80 formula is correct. This formula represents a typical operational scenario where communication equipment, like the Post Radio, is used intermittently rather than continuously.

The 10/10/80 formula outlines how the device will operate at a specific power output: it uses 10% of the time in a high-wattage mode (for transmitting), 10% in a lower-wattage mode (for standby), and 80% in a low-power state (which is often utilized for receiving). This operational pattern allows for efficient battery usage.

Thus, when considering these operational periods, the battery life can be effectively calculated based on its design specifications and usage patterns, leading to the conclusion of a 7-hour sufficient wattage capacity for the device under these conditions. This aligns with typical real-world applications seen in emergency response and communication scenarios, ensuring that personnel can rely on their equipment for the duration needed while maintaining power efficiently.