ep EPT20-ET2 - Charging; Storage; Common Problems and Solutions

REV. 09/2022
F8
REV. 09/2022
F9
11 Charging
This battery can only be charged with the vehicle-specic charger, other chargers may cause
battery damage.
The normal charging temperature range of the battery is: 5°C ~ 40°C, please do not charge in the
environment beyond the normal temperature range;
If the battery is not fully charged in specied time, check the max. voltage of the cells of the
battery, if it is higher than 3.65V, stop charging it immediately, and contact the after-sales service.
During the charging operation, it is necessary to have professional personnel to operate and
care, in order to ensure that the charging plug and socket work normally without heat, to ensure
that the charging device works normally, to ensure that the battery pack and its protection circuit
work normally, and the whole power supply system has no sign of short circuit, over current, over
temperature or overcharge.
When charging, connect the battery to the charger; after starting charging, the circular display
meter will display the total voltage, the maximum and minimum cell voltages, power, temperature,
charging current and other information; pay particular attention to the charging current and the
maximum and minimum cell voltages, as well as the voltage di󰀨erence between them; if there is
abnormality, stop charging in time and contact the after-sales service department for solutions.
Charging in non-charging area is prohibited;
No modication of vehicles;
Do not use irregular charging sockets;
The net height of the charging area shall be higher than 5m, and the safe distance from other
areas shall be greater than 5m.
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12 Storage
Before a long period of inactivity, the battery must be fully charged.
We recommend that batteries are stored at a height between 60 and 120 cm.
•Store the battery in a dry place at a temperaturebetween 0 and 40° to preserve its
service life. This area must not be hermetically sealed to allow air renewal;
•If the battery system needs to be placed on hold for a long time, it would better keep the battery in
the semi-electric state and charge the battery every 2 months to ensure that the battery system is
in the semi-electric state;
•The positive and negative terminals of the battery system are prohibited from contacting with metal
objects during storage.
13 Common Problems and Solutions
During the use and maintenance of the lithium-ion battery, the battery or battery system may
have one or more of the following abnormal conditions, please organize the professional
engineers and technicians to perform the necessary processing according to the instructions in
this manual; if you have any questions about the status or solutions, please contact ep dealer
or after-sales service department of the company to obtain professional technical support.
If the battery is found to have abnormal mechanical characteristics such as swelling, cracked
casing, melted casing, and distortion of the casing before and during installation, stop using
the battery immediately, place it in open and well-ventilated space, and contact the after-sales
service.
If abnormalities such as looseness, cracks, cracks in the insulation layer, burn marks, etc. of
the battery's pole pressing bolts, conductive strips, main circuit wires and connectors are found
before and during the installation, stop using the battery immediately, check the reason for
analysis and give it a x;
If the polarity of the positive and negative terminals of the battery is found not match the polarity
identication before installation, please stop using the battery immediately and contact the after-
sales service department to replace the battery or obtain other solutions;
If there is re or smoke happens to the battery, move it to the open air immediately, evacuate
people in time, and pour a large amount of cold water onto the battery to cool it down and put
out the re.
If the battery is found to emit smoke , immediately stop using the battery, using re sand or
explosion-proof box for burial and isolation,wearing respirator and reproof gloves move the
battery to a safe area,notify the after-sales service department of the company for record and
obtain technical support.
If there is re or smoke happens to the battery, move it to the open air immediately, evacuate
people in time,and contact a recycling company to recycle the batteriesfor(for For big battery
with inner and outer boxes structure).
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WARNING
1. Dispose of used batteries in time;
2. Do not store used batteries for a long time.
3. No load bearing, squeezing and contact stacking when storing batteries;
4. Do not place batteries near cargo warehouses or near ammable and explosive dangerous
goods.