BATTERY LOWtrouble

Silent Knight 5820XL: BATTERY LOW

Silent Knight 5820XL·1 view·0 field notes

What This Code Means

The system has detected that the standby battery voltage is below the acceptable threshold, indicating the batteries are depleted or failing to hold a charge.

Common Causes

1Battery terminal voltage is less than 85% of its rating
2Batteries are older than five years
3Battery size is too small for the installation load
4AC power failure has depleted the standby batteries

Resolution Steps

If new batteries were installed, wait 48 hours before completing this step. Measure battery voltage while the Notification Appliances are sounding. Replace any battery with terminal voltage less than 85% of rating. Reapply AC power and RESET system.

Manual References(5)

1silent knight5820XLInstallation2007Open

2silent knight5820XLDatasheet2006Open

3silent knight5820XLDatasheet2006Open

Field Notes

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