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2.6 Maintenance and Inspection
Perform the regular inspections of the battery modules following the precautions and
instructions below.
Precautions prior to Battery Module Maintenance and Inspection
・
For maintenance and inspection, wear safety glasses, rubber gloves, and rubber sole
shoes.
・
For inspection, use insulated tools (with the withstand voltage higher than the battery
system’s max. voltage).
・
Inspection must be performed by a person who completely understands the handling
method and the hazards associated with lithium-ion cells.
・
If removal of battery module is necessary for inspection, avoid doing so when it is in the
fully charged state. We recommend discharging the module to its lowest level of charge.
Battery Module Maintenance and Inspection Methods
Perform the regular inspections shown in the table below.
Annual Inspection
Inspection Item
Point for Inspection/Test
(1)
Battery Module Terminal
Nut
Check for loosening of nut
(2)
Battery Module
Appearance
Check for deformation or damages
Check for leakage
(3)
Cleaning of Battery Rack
Inside
Cleaning depending on the condition
(4)
Terminals and Wiring
inside of Battery Rack
Check for damages or discoloration of electric
cables
Connector conditions