Storage Recommendations - Pylontech PowerCube-X1 Operation Manual

the system abnormal voltage or not. For example: Single cell's voltage is abnormal high or low.
5.3.2 SOC Inspection:
[Periodical Maintenance] Check the SOC of battery system through the monitor system. Check
the battery string abnormal SOC or not.
5.3.3 Cables Inspection:
[Periodical Maintenance] Visual inspect all the cables of battery system. Check the cables has
broken, aging, getting loose or not.
5.3.4 Balancing:
[Periodical Maintenance] The battery strings will become unbalance if long time not be full
charged. Proposal: every 3 month should do the balancing maintenance (charge to full).
5.3.5 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, that's mean this relay can off and on normally.
5.3.6 History Inspection:
[Periodical Maintenance] Analysis the history record to check has accident (alarm and protection)
or not, and analysis its reason.
5.3.7 Shutdown and Maintenance:
[Periodical Maintenance] Some battery function must be restart the ESS then can do the
maintenance. So it must minimal 6 months do once.
6.

Storage Recommendations

b) For long-term storage, if stored for a long time (more than 3 months), the battery cells should
be stored in the temperature range for 5~45℃, relative humidity <65% and contains no corrosive
gas environment.
The battery should shelfed in 5~45℃, dry, clean and well ventilated environment. Before storage
the battery should be charged to 50~55% SoC;
It is recommended to discharge and charge the battery every 3 months, and the longest
discharge and charge interval shall not exceed 6 months.
Caution: If not follow the above instructions to long term store the battery, will reduce the life
cycle of the battery.
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