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4.5.4 Battery Maintenance
Danger:
The maintenance of battery must be done by qualified and authorized person
only.
Danger:
La maintenance de la batterie doit être effectuée uniquement par le personnel
qualifié et autorisé.
Danger:
Some maintenance items must shut off at first.
Danger:
Certains items de maintenance doivent être arrêtés en premier.
1. Voltage Inspection:
[Periodical Maintenance] Check the voltage of battery system through the monitor system.
Check if the system voltage abnormal or not. For example: Single cell’s voltage is abnormal high or
low.
2. SOC Inspection:
[Periodical Maintenance] Check the SOC of battery system through the monitor system. Check the
battery string SOC abnormal or not.
3. Cables Inspection:
[Periodical Maintenance] Visual inspect all the cables of battery system. Check if the cables broken,
aging, getting loose or not.
4. Balancing:
[Periodical Maintenance] The battery strings will become unbalanced if not being full charged for
long time. Proposal: every 3 months do the balancing maintenance (charge to full).
5.Output Relay Inspection:
[Periodical Maintenance] Under low load condition (low current), control the output relay OFF
and ON to hear the relay has click voice, which means this relay can off and on normally.
6. History Inspection:
[Periodical Maintenance] Analyze the history record to check if there is an accident (alarm and
protection) or not and analyze the reason.
7. Shutdown and Maintenance:
[Periodical Maintenance] Some battery function must be restarted then can ESS start the
maintenance. So,
it must do once every 6 months at least.
8. Recycle
NOTE
Damaged batteries may leak electrolyte or produce flammable gas.
When a damaged battery needs recycling, follow the local recycling regulation (i.e. Regulation
(EC) N
º
1013/2006 among European Union) to process and using the best available techniques to
achieve a relevant recycling efficiency.
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