47 C.F.R. § 80.919 Required capacity.
Title 47 - Telecommunication
If either the main or reserve power supply includes batteries, these batteries must have sufficient reserve capacity to permit proper operation of the required transmitter and receiver for at least 3 hours under normal working conditions.
Title 47: Telecommunication
PART 80—STATIONS IN THE MARITIME SERVICES
Subpart S—Compulsory Radiotelephone Installations for Small Passenger Boats
§ 80.919 Required capacity.
