small sized battery

601539 300mAh

small 300mAh battery for earphone

Diagram
NO. Product Parameter Size
1 Thickness  ≤6.0mm
2 Width  ≤15mm
3 Height  ≤41mm
4  Wire direction Left 
5 Wire Definition P+ P- 
6 Wire length 60±3mm
7 Wires No. UL1571,  AWG26 
8 Connector Model Molex70066-2P Black

Specification  
NO. Item Specifications
1 Model 601539 3.7V-300mAh
2 Rated Capacity 300mAh  0.2C Discharge  
3 Minimum Capacity 280mAh  0.2C Discharge  
4 Nominal voltage 3.7V
5 O.C.V  3.80-4.2V
6 Charge current               Standard Charge:0.2C  Rapid charge:0.5C
7 Standard Charging method  0.2C CCconstant currentcharge to4.25V/cell,then CV(constant voltage 4.25V/cell)charge till charge current decline to ≤0.01C0.
8 Charging time                Standard Charging   Approx 6 hours
Rapid Charging   Approx 3 hours
9 Max. charge current       Constant Current 0.5C Constant Voltage4.25V/cell 0.01 C cut-off
10 Max. discharge current     Constant current 0.5C end voltage3.0V
11 Standard Discharge Current Constant current 0.2C end voltage3.0V/cell
12 Discharge cut-off voltage   2.95~3.05V/cell
13 Charge cut-off Voltage     4.2~4.25V/cell
14 Initial Impedance              220 
15  Weight                       Approx: 10 g
16 Operating temperature        Charging:0~45   Discharging:-20~50
17 Storage temperature            -20~50
18 Storage Humidity ≤75% RH
19 Cycle Life 500 times

Testing parameter



Item Content Min Norm Max Unit
Over charge Protection Over charge detection voltage 4.255 4.28 4.305 V
Over charge release voltage 4 4.05 4.1 V
Over charge detection delay time 80 150 200 MS
Over discharge   protection Over discharge detection voltage 2.3 2.4 2.5 V
Over discharge recovery voltage 2.9 3 3.1 V
Over discharge detection delay time 40 80 100 MS

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