COPYRIGHT OF AUTOSLIDE PTY LTD 7
TH
JUNE 2022
4
5
、
Function and test method
Item
Test method
Criterion
Standard charge
CC/CV mode, in the condition that environment temperature
is(23±5)
℃
,charging source keep constant current charge with 0.2C
current until battery voltage reach25.2V,then turn to constant voltage
charge method until charge current is less than 0.02C(0.062A).
Capacity
After standard charge
，
Shelve battery at indoor temperature for 1h
，
in the condition that environment temperature is (23±5)
℃
, constant
current discharge with 0.2C current until reach the cut-off voltage.
Capacity≥Minimal
discharge capacity
vibration refer to
UN38.3 Stands
1. The vibration shall be a sinusoidal waveform with a logarithmic
sweep between 7 Hz and 200 Hz and back to 7 Hz
traversed in 15
minutes. This cycle shall be repeated 12 times for a total of 3 hours
for each of three mutually perpendicular mounting positions of the
cell. One of the directions of vibration must be perpendicular to the
terminal face.
2. From 7 Hz a peak acceleration of 1 gn is maintained until 18 Hz is
reached. The amplitude is then maintained at 0.8 mm (1.6 mm total
excursion) and the frequency increased until a peak acceleration of 8
gn occurs (approximately 50 Hz). A peak acceleration of 8 gn is then
maintained until the frequency is increased to 200 Hz.
No leakage,
No venting,
No disassembly,
No rupture and
No fire,
voltage≥90% before
testing
Overcharge
protection
Set the charge voltage of battery pack as 25.2V, charge with 0.5C
current, experiment time less than 24h, and stop charge when PCM
start to protect battery.
Protection function
work normally
，
no
liquid leakage
、
no air
leakage
、
no fracture
、
no fire
、
no explosion
Over discharge
protection
Discharge battery pack with 0.8C current
，
experiment time less than
24h,and stop discharge when PCM start to protect battery.
Protection function
work normally, no
liquid leakage
、
no air
leakage
、
no fracture
、
on fire
、
no explosion
Short circuit
protection
0.5h
。
After a full charge,short current the discharge positive and
negative pole 0.5h with an external circuit which resistance is no
more than 50mΩ.
After short circuit the
protection function is
normal
Recycle life
In the condition that environment temperature is
（
23±5
）℃
, standard
charge, and shelve for 1h, and constant current discharge with 0.2C
current to the cut-off voltage.
500 times discharge
capacity>70% initial
capacity of cells
