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Title
Specifications of Lithium Ion battery (Prismatic Type)
4. Electrical Characteristics
Item
4.1 Charge
Full Charge
4.2 Capacity
4.3 Cycle Life
4.4 Temperature
4.5 Full Charged
State Storage
File No
UF103450-849
The charger supply 1.88A constant current until
battery voltage reaches 4.20V, then be changed at
constant voltage of 4.20V while tapering the charge
current. Charging time is 3.0hours in all. Charging
temperature is 25℃.
①Within 1hour after fully charged at 25℃, discharge
at 0.37A continuously down to 2.75V end voltage
at 25℃.
② Within 1hour after fully charged, discharge at
1.88A continuously down to 2.75V end voltage.
The cell shall be repeated 500 charge/discharge
cycles at 25℃, charged at CC-CV (1.88A-4.20V)
for 3.0hours, discharged at 1.88A to 2.75V end
voltage. After 500cycles, discharging time is
measured as specified in paragraph 4.2 ②.
①Within 1hour after fully charged at 25℃, the cell is
stored at 0 ℃ for 3hours. Discharge time is
measured as specified in paragraph 4.2② at 0℃.
②Within 1hour after fully charged at 25℃, the cell is
stored at 60 ℃ for 3hours. Discharge time is
measured as specified in paragraph 4.2 ② at
60℃.
①After fully charged at 25℃, stored for 10days at
60℃ and rested at 25℃ for 3hour. Discharge
time is measured as specified in paragraph 4.2②.
Then next discharge time is measured as
specified in paragraph 4.2 ②.
Portable Rechargeable Battery Business Group
Test Method
Energy Company, SANYO Electric Co., Ltd.
Lithium-Ion Battery Business Unit
page
3/13
Criterion
300min. or more
54min. or more
32min. or more
30min. or more
50min. or more
35min. or more
45min. or more
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