Battery Maintenance - Pylontech Force-L2 Operation Manual

5.2.2.7 Install back Grounding Cable, Communication Cable and the D+ and D- Power Cable.
5.2.2.8 Turn on this battery string. Refer to chapter 3.6.
5.2.2.9 After debug must install the Protection Cover of
the Power Terminals back.

5.3 Battery Maintenance

5.3.1 Voltage Inspection:
[Periodical Maintenance] Check the voltage of battery system through the monitor system.
Check 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 full charged.
Solution: every 3 months should do the balancing maintenance (charge to full), normally it will
been done automatically by the communication between system and external device.
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 system function must be maintenance 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 a damaged battery needs recycling, it shall follow the local recycling regulation (e.g.
Regulation (EC) Nº 1013/2006 among European Union) to process, and using the best available
techniques to achieve a relevant recycling efficiency.
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