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V220308
5.3 Battery Maintenance
Danger:
The maintenance of the battery must be done by qualified and authorized personnel
only.
Danger:
For some maintenance, the system must be turned off at first (Cables Inspection and
Output Relais Inspection).
5.3.1 Voltage Inspection:
[Periodical Maintenance]
Check the voltage of the battery system through the monitoring system.
Check the system whether there are abnormal voltages or not. For example: A s
ingle cell’s voltage
is abnormal high or low.
5.3.2 SOC Inspection:
[Periodical Maintenance]
Check the SOC of the battery system through the monitoring system.
Check the battery string whether exist abnormal SOC or not.
5.3.3 Cables Inspection:
[Periodical Maintenance]
Visually inspect all the cables of the battery system. Check if the cables
are broken, aging or getting loose.
5.3.4 Balancing:
[Periodical Maintenance]
The battery strings will become unbalanced if the system has not been
fully charged for a long time. Solution: every 3 months, the system should do the balancing
maintenance (charge to full). Normally this will be done automatically by the communication
between system and external device.
5.3.5 Output Relay Inspection:
[Periodical Maintenance]
Under low load conditions (low current), control the output relay OFF
and ON to hear if the relay has a click voice. That means this relay can work normally.
5.3.6 History Inspection:
[Periodical Maintenance]
Analyse the history record to check whether there was an accident
(alarm and protection) and analyse its reason.
5.3.7 Shutdown and Maintenance:
[Periodical Maintenance]
Some system function must be maintenanced during the EMS restart, it is recommended to
maintenance the system every 6 months.
5.3.8 Recycle
NOTE
Damaged batteries may leak electrolyte or produce flammable gas.
In case that a damaged battery needs recycling, it shall follow the local recycling regulation (ie.
Regulation (EC) Nº 1013/2006 among European Union) to process, and using the best available
techniques to achieve a relevant recycling efficiency.