Issue
The panel displays a Low Battery Voltage (With Charger Trouble) condition. This is accompanied by General Trouble and Power Trouble LEDs being ON.
Product Line
ESMI Fire Detection.
Environment
- FFSULH1001.
- FFSULH1002.
- FFSULH1003.
Warning
Hazard of Electric Shock: Battery terminals and leads are not power-limited. Short circuits can cause a fire or an explosion. Use extreme caution while connecting or disconnecting standby batteries.
Electrostatic Discharge Required: Always discharge static electricity from your person by touching metal prior to handling any hardware. Failure to do so may result in damage to devices.
Cause
Possible causes of this issue include:
- Battery impedance exceeds acceptable limits
- This can occur after several years of use as batteries degrade.
- Mixing different battery brands or using batteries of the same brand but with different ages (e.g., one new and one old) can also cause this issue.
- Faulty power supply
- If the power supply is malfunctioning, it may not charge the batteries correctly, triggering the fault.
Resolution
- Step 1: Replace the existing batteries with a new set from the same brand.
- This often resolves the issue if battery impedance was the root cause.
- Step 2: If the issue persists after replacing the batteries, the power supply may be faulty.
- In this case, replace the power supply unit.
- After replacing either the batteries or the power supply, the panel should return to normal operation.
