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34
Integrated Lithium-ion Battery Pack
User Manual
6 ENVIRONMENT PROTECTION
5.2
The main performance index of the battery
For lithium battery of BTESF series module, the electrical performance as shown in
table 5-11. [48V spec/24V spec]
Table 5-11 Multiple group parallel discharge technology parameters
Items for test Testing methods Requirements
0.1C
discharge
performance Standard battery charge, 1h within 1h
with 0.1C discharge current to
40.5V/20.25V, Record the discharge
time.
Discharge time ≥
600min
0.5C
discharge
performance Standard battery pack, 1h within 0.5C
discharge current to 40.5V/20.25V,
record the discharge time.
Discharge time≥
115min
High
temperature
performance After the battery pack is charged in
the standard (60
± 2)
℃
high
temperature box for 4 hours and then
discharged to 40.5V/20.25V at 0.1C,
record the discharge time.
Discharge time≥
600min
Low
temperature
performance
(-10
℃
)
After charging, the battery pack is put
in the low temperature box of (-10
±
2)
℃
for 6 hours, then discharged to
40.5V/20.25V at 0.2C at this
temperature, record the
discharging time.
Discharge time≥
180min
Low
temperature
performance
(-20
℃
)
After charging, the battery pack is
allowed to stand for 6 hours at (-20
±
2)
℃
, then discharged to
40.5V/20.25V at
0.2C at this temperature. Record
discharge time.
Discharge time≥
120min