Battery Charger & Battery Bank – Daily Maintenance Checklist

Purpose

To ensure the reliable operation of the battery charger panel & battery bank through routine inspection, functionality verification, & preventive maintenance.

1). Verification of Voltmeter & Ammeter Readings

Regularly verify that the voltmeter and ammeter on the battery charger panel display correct values as per rated specifications. 

Deviations cam indicate charger malfunction, overcharging, (or) battery discharge issues. Record any anomalies for further diagnostics.

2). Indication Lamps Status Check

All indication lamps, such as 

• Charger ON,
• Battery ON,
• Float/Boost Mode, and 
• Fault Indicators, 

should be functional. 

Non-operational lamps can lead to unnoticed faults or misinterpretation of system status. Replace any faulty lamps promptly.

3). Selector Switch Position Verification

Ensure that the selector switch on the charger panel is set to AUTO mode.

This setting allows the system to automatically regulate float & boost charging, depending on battery voltage levels. 

Manual mode should only be used during troubleshooting (or) testing.

4). Battery Charging Room Lighting

Check the proper functioning of all lighting fixtures in the battery room. Adequate lighting is essential for safe operation & inspection, especially during emergency situations (or) night shifts.

5). Exhaust Fan Operation Check

Verify that the exhaust fan is operational to maintain adequate ventilation.

Proper airflow prevents accumulation of hydrogen gas emitted during charging, which is critical to avoid potential fire or explosion hazards.

6). Earthing of Panel & Battery Stand

Inspect and ensure that the earthing connections of the charger panel & battery stand are intact and meet safety standards. 

A good earth connection protects against voltage surges, electrical faults, and ensures personal safety during maintenance.

7). Cleanliness of Charger Panel & Battery Bank

Ensure that the charger panel and battery bank are free from dust, corrosion, or foreign materials. 

Clean panels reduce the risk of electrical leakage (or) shorts, & improve the reliability and life of the equipment.

8). Fault/Tripping/Damage Logging

Inspect the charger panel & battery bank for 

• Signs of tripping, 
• Fault alarms, or 

Physical damage such as 

• Cracked terminals, 
• Burn marks, (or) 
• Corrosion. 

Document any abnormalities and initiate corrective actions immediately.

9). Activity Tracking near Panel

Keep a log of any activities or work done in proximity to the battery charger or battery bank. 

This includes maintenance, cleaning, construction, (or) third-party work. Such records help trace the cause of any incidental faults (or) operational changes.

10). Physical Condition Check (Sound, Smell, Heat)

Conduct a thorough physical inspection of the area and equipment for

• Unusual sounds (buzzing, humming), 
• Smells (burning, chemical), (or) 
• Heat (hot terminals, overheating batteries). 

These symptoms often precede failures and should be reported for immediate action.

Documentation

All observations must be signed by the personnel performing the check and verified by the Shift Engineer. 

Proper documentation ensures accountability and facilitates historical tracking of maintenance activities.

Checklist