Battery Maintenance; Voltage Inspection; Soc Inspection; Cables Inspection - Pylontech PowerCube-H1-V2 Operation Manual

5.2.2.3 Dismantle the 4 screws of the battery module's front face.
5.2.2.4 Install the new control module (BMS). And reconnect all the cables. Refer to chapter 3.5.
5.2.2.5 Turn on this battery string. Refer to chapter 3.6.
Caution: Before pull out the communication cables must mark the cable number, to avoid
cable wrong sequence.

5.3. Battery Maintenance

Danger: The maintenance of battery must be done by qualified and authorized person only.
Danger: Some maintenance items must shut off at first.

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 be full charged.
Solution: every 3 months should do the balancing maintenance (charge to full), normally it will be done
automatically by the communication between system and external device.
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