EP Equipment LIST JX0, Service Manual

Page: 202 / 206

189
REV. 07/2019
SERVICE MANUAL - BATTERY
B
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Daily Maintenance
B3-3 Maintenance & Care
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It is necessary to arrange professionals for
care during the charging operation, especially
when the battery is almost fully charged;
make sure that the plug and the socket are
in good contact during the charging process
to ensure the normal work of the charging
device and good contact of the connection
points of the battery pack. If an abnormality
occurs, the battery needs to be repaired
before charging;
Check the battery voltage, temperature,
voltage difference, etc. displayed on the
circular display meter before charging and
discharging to ensure that all values are
within the normal range;
If there is a large amount of dust, metal
shavings or other debris on the upper
cover and poles of the battery pack, use
compressed air or wet cloth to clean it in time,
avoid cleaning with water or water-soaked
objects;
When charging and discharging, try to avoid
water or other conductive liquids splashing on
the top cover and poles of the battery, such
as rainwater;
Estimate the charging time and discharging
time of the battery according to the actual
status of use of the battery or battery pack,
observe whether there is any abnormality
in the battery or battery pack at the end of
charging and the end of discharging, such as
the voltage difference of the battery.
The normal charging temperature range of
the battery is: 0°C~45°C.
The voltage difference between the maximum
and minimum cell voltages during charging is
less than 0.1V.
The lithium battery voltage matches the
charger voltage.
The charger should be periodically checked
for charging over voltage protection device.
CAUTION
Regular maintenance
Check the nodes such as the conductive strips
and voltage collection terminals for looseness,
shedding, rusting or deformation, etc., to
ensure that the series-parallel harness used
in the battery pack is firm and reliable (once a
month);
Check the battery casing for cracks, deformati-
on, loose poles, bulging and other abnormal
conditions (once a month);
Check the reliability of the charging device to
ensure that the charging device performs the
charging action in accordance with the voltage
and current adjustment signals sent by the
BMS and to ensure that the battery will not be
overcharged (once a month);
Check discharge protection equipment,
such as fast-acting fuses, relays, etc., to
ensure that the battery pack can be quickly
disconnected from the main circuit in the event
of a dangerous situation such as short circuit
or over current (once a month);
Check the insulation resistance between the
battery pack and the vehicle body to ensure
that the resistance value meets the Chinese
national standard (≥500Ω/V) and to ensure
that there is no electric leakage with the
battery (once a month);
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