461023 70mah 3.7V lithium polymer battery with UL, KC, CB
certification for bluetooth headset
1. Cell specification.
|1||Nominal Capacity||70mAh||0.2C standard charge and discharge|
|2||Minimum Capacity||65mAh||0.2C standard charge and discharge|
|3||Nominal Voltage||3.7V||Mean Operation Voltage|
|4||Delivery voltage||3.7~3.9V||Within 10 days from Factory|
|5||Charge Voltage||4.2V±0.03V||By standard charge method|
|6||Standard charging method||0.2C constant current,4.2V constant voltage charge to 4.2V,continue
charging till current decline to ≤0.01C||Time 6.5h around|
|7||Charge current||0.2C||13mA||Standard charge, charge time:6.5h(Ref)|
|1C||65mA||Rapid Charge, charge time:2.5h(Ref)|
|8||Standard discharging method||0.2C constant current discharge to 3.0V|| |
|9||Cell Internal Impedance||≤200mΩ||Internal resistance measured at AC 1KHZ after 50% charge|
|10||Max charge current||1.0C||For continuous charging mod|
|11||Peak discharge current||2.0C||Max Continuous discharge current 1C|
|12||Operation Temperature and relative humidity Range||Charge||0~45℃||Charge at a very low temperature such as blew 0℃,will be get a
lower capacity and reduce cycle life of the battery|
|13||Storage temperature for a long time||-20~25℃||Do not storage exceed half year. Must charge once when storage for
half year. Must charge the battery which with protect circuit when
storage for three months.|
2. Safety performance
How about the safety performance? The following info. is the result
of our test.
|No||Items||Test Method and Condition||Criteria|
|1||Thermal exposure test||Each fully charged cell, stabilized at room temperature, is placed
in a circulating air-convection oven. The oven temperature is
raised at a rate of 5 °C/min ± 2 °C/min to a temperature of 130 °C
± 2 °C. The cell remains at this temperature for 10 min before the
test is discontinued.||No explosion, No fire|
|2||Low pressure||Each fully charged cell is placed in a vacuum chamber, in an
ambient temperature of 20~25℃. Once the chamber has been sealed,
its internal pressure is gradually reduced to a pressure equal to
or less than 11.6kPa (this simulates an altitude of 15240 m) held
at that value for 6 h.||No explosion, No leakage, No fire|
|3||Short test||The fully charged battery is to be short-circuited by connecting
the positive and negative terminals of the battery with resistance
load not exceed 100mΩ.Tests are to be conducted at room temperature
20~25℃.||No explosion, No fire The Temperature of the Battery surface not
exceeded than 150℃|
|4||Forced discharge test||A discharged cell is subjected to a reverse charge at 1C for 90
min.||No explosion, No fire|
|5||Over charge test||After standard charge, continue to charge with a constant voltage
4.6V per a cell, holding 8h.||No explosion, No fire, No leakage|
|6||Soak Test||Put the batteries into clean water, be soaked for 24 hours.||No break, No fire|
3. More info. of the battery.
NO Items Units: mm Remark
1 Thickness 4.55 Max.
2 Width 10.1 Max.
3 Height 23 Max.
4 L1 8.0±2.0
5 L2 22±2
6 L3 3±0.1
4. Draw of the cell.
3. PIC of battery.
The application of the polymer battery.
Part of factory view:
We give 1 year warranty. If the battery has problem coz of our
quality issue, We will give replacement any time.
1. Q:How to start the cooperate?
A: Lets start with the sample orders. In 3-5days will be ready the
samples, then you test.We make the standard according
the data sheet which we give.Once you confirm the quality, we can
talk for further.
2. Q: How long to make the cargos?
A: Need 30day around if we dont have the stock of that model. Coz
need strictly test and high temperature,high voltage life ageing as
well in every single pc. That will takes a fixed date.
3. Q: What will be the packing?
A: We are using blister pallet packing in each battery. and then
fold all packing in one ctn.
4. Q: Can the connectors be customized?
A: Yes, we can choose the right connector according your
requirement.Or help to match your device.
For more please contact me freely, wish my 12years experience in
battery area can help you in your project.