Potter PFC-6075 - Manual (Page 106)

6-100
PFC-6075 • 5403593 • Rev C • 2/13
Rechargeable Battery Circuit
The battery charging circuit is on the power supply board providing terminal connections to connect the wire leads. The battery
must be a recognized or listed sealed lead acid battery or equivalent. It is rated for 8 to 55 AH batteries and will operate the panel
alarm for at least 24 hours and 5 minutes.
The battery charging voltage is approximately 27.3 vDC and the circuit is supervised. The maximum battery charging circuit is
1.0 amp DC. The cabinet will house up to two (2) 18 AH batteries.
Battery Circuit Calculation
Before selecting the battery, the installer must determine the minimum size batteries for standby and alarm times desired for each
application. If the wrong batteries are installed or incorrect current draw used, the proper standby and minimum alarm time will
not be present. (Please use the Battery Calculation Worksheet located on the next page to calculate the battery size and current
draw required for each application.)