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2 The RACK should not be charged or discharged with high magnifying power. The
continuous charging and discharging current of a single rack should not exceed 140A.
3 When the energy storage system is not used in a long time, it should be charged once
every six months, until its SOC is 30% to 40%.
4 When the system is used after long-term storage, it should be fully charged at least once
to restore the best performance of the battery.
5 Regularly check whether the air duct of the cooling system is blocked and clean the
system. In particular, clean the air inlet and outlet of the fan and use a vacuum cleaner if
necessary, to maintain free air circulation inside the cabinet. Before dust removal, the
power supply must be cut off. It is forbidden to rinse the system with water.
6 Regularly check whether the fastening bolts of the high-voltage cables and connecting
busbars of the energy storage system are loose, whether the contacts are in good
conditions, and whether the terminal surfaces are severely corroded or oxidized.
7 Regularly check the protective covers of high-voltage positive and negative electrodes
of the PACK for ageing, damage and missing.
8 Regularly check cables for loosening, ageing, damage and fracture and inspect whether
the insulation is in good conditions.
9 Regularly check the battery cabinet for pungent odor and high-voltage connections for
burning odor.
10 Regularly check whether the voltage, temperature and other data of the monitoring
upper computer are correct and whether there are fault alarms in the alarm column.
11 Regularly check whether the status and alarm indicators of the energy storage system
are in good conditions and whether they work properly.
12 Regularly check whether the emergency stop button of the energy storage system can
be used, in order to quickly shut down the system in an emergency.
13 Regularly check whether the fire extinguishers are in good conditions and within the
validity period.
14 Never use different types of battery modules in series or parallel.
• The battery is potentially dangerous, so appropriate protective measures must
be taken during operation and maintenance!
• Incorrect operation may cause severe personal injury and property damage!
• Use the appropriate tools and protective equipment during battery operation.
• Battery maintenance must be performed by those who have battery expertise
and received safety training.
System Manual 11 Routine Maintenance
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