Specification Approval sheet
Page 1 of 9
Specification Approval Sheet
Name
：
Polymer Lithium-Ion Battery
Model
：
AKYGA L903759
SPEC
：
3.7V/ 2200mAh
Number:
903759
Specification Modification Records
Modification
Time
Descriptions
Issued Date
Approved By
Release 1
2016-06-23
Content
1.Scope:
This specification describes the Product Specification of chargeable Polymer Lithium-Ion
Battery produced by AKYGA.
Any copies are invalid without our company’s approval
Specification Approval sheet
Page 2 of 9
2.Model :
3.Cell parameters Index:
3.1 Single cell parameters
No.
Item
Spec
Note
1
Model
Number
903759 / 2200mAh
2
Charge
Limited
Voltage
4.2V
3
Nominal
Voltage
3.7V
Cell Voltage between 3.6V ~3.9V before
shipping
4
Nominal
Capacity
2200mAh@ 0.2C
Discharge
Nominal Capacity refer to the capacity
of
0.2C discharge with 2.75V cut-off
voltage,
after charging with standard method.
5
Cycle Life
300 Times
One cycle refer to one charge period
and then one discharge period.
Test condition:
Charge: 0.2C to 4.2V
Discharge: 0.2C to 2.75V
The cycle life is the cycle times when
the discharge capacity is about 80% of
the rated capacity.
6
Self-discharge
Residual Capacity>90%
After standard charging, storied at
25°C±0.5°C for 30 days, then measure
the capacity as item 4.
7
Impedance
Typical: 52mΩ
After standard charging, measure the
internal resistance with AC1KHz
8
Max. Charge
Current
1C
9
Max.
Discharge
Current
1C
10
Discharge
Cut-off
Voltage
2.75V
11
Operating
Temperature
Discharge:-10°C ~ +55°C
Charge: 0 °C ~ +43°C
Cells must be storied at 3.6V-3.9V.
During long period storage, cells should be
maintained every 90 days. The method
is to do a charge-discharge cycle with
standard method, then charge to 3.7—
3.9V.
12
Storage
Temperature
-20 °C ~+45°C
13
Cell Weight
Approx: 44.0g
14
Cell
Dimension
Length：59.5mm Max
Width：37.5mm Max
Thickness：9.5mm Max
Measured with weighting 300gf at
25
°C±0.5°C
Not
including Tabs
15
Connector
type
JST SYP-02T-1 + socket
2.54mm*2pins