... /16 -zone, Class B conventional fire alarm control panel, meet the latest UL864&EN54 standard. Key words: Fire alarm Control Panel,conventional fire alarm control panel, fire alarm panel, fire alarm, FACP, fire alarm system, fire-fighting, fire panel, fire alarm controller, fire alarm control ... Maximum charging circuit: 27.6VDC @ 0.8 amp for normal flat charge, Maximum battery charger capacity ...