The Pentagon is spending more than $300,000 a month on the batteries for its semaphor, a device that allows the military to communicate with drones.
The Pentagon has been using the devices for years, and the latest version of the semaphored drone is now being used in Afghanistan.
The military plans to buy more drones for the Afghan air force, according to a Defense Department report.
The semaphotes, called “buzzers,” are powered by batteries that run on an external power source and are meant to be used for a range of applications.
The battery-powered semaphrones have been used in the United States for years by the military and other agencies, including the Drug Enforcement Administration.
The drones are not meant to target civilians, but instead are used to carry out surveillance and communications with military personnel.