5.2.2 Replacement of Control Module (BMS)
5.2.2.1 Turn off the whole battery string’s power. Must confirm the D+ and D- terminal are without
power. The turn off progress refer to chapter 3.6.5.
5.2.2.2 Dismantle D+ and D- Power Cable, Communication Cable and Grounding Cable.
5.2.2.3 Dismantle the control Module’s fix screw of left and right side. And dismantle the fix metal
brackets.
5.2.2.4 Remove the control module.
Danger: when battery is
connected together with the
base the internal socket still
have high voltage DC power
from serial connected battery
modules (battery module can’t be turned off).
5.2.2.5 Pile up the new control module.
5.2.2.6 Install back the control Module’s fix screw of left and right side. And Install back the fix
metal brackets.
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.
5.3 Battery Maintenance
Danger: The maintenance of battery must be done by qualified and authorized personnel only.
Danger: Some maintenance items must turn off at first.
5.3.1 Voltage Inspection:
[Periodical Maintenance] Check the voltage of battery system through the monitor system.
Check the system whether exist 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 whether exist 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
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