... 4/8/16 -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 ... , Maximum charging circuit: 27.6VDC @ 0.8 amp for normal flat charge, Maximum battery charger capacity: 18AH battery NOTE: two 4AH ...