Bluetooth Headset Lithium Ion Polymer Battery Pack 3.7V 353040 370mah KC UL CB Certificated
461023 70mah 3.7V lithium polymer battery with UL, KC, CB certification for bluetooth headset
1. Cell specification.
| No. | Items | Specifications | Remark | |
| 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 Iedance | ≤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 Teerature and relative humidity Range | Charge | 0~45℃ | Charge at a very low teerature such as blew 0℃,will be get a lower capacity and reduce cycle life of the battery |
| 60±25%R.H. | ||||
| Discharge | -20~60℃ | |||
| 60±25%R.H. | ||||
| 13 | Storage teerature 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. | |
| 60±25%R.H. | ||||
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 teerature, is placed in a circulating air-convection oven. The oven teerature is raised at a rate of 5 °C/min ± 2 °C/min to a teerature of 130 °C ± 2 °C. The cell remains at this teerature 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 teerature 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 teerature 20~25℃. | No explosion, No fire The Teerature 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 |
4. Draw of the cell.
3. PIC of battery.
The application of the polymer battery.
Part of factory view:
Waranty:
We give 1 year warranty. If the battery has problem coz of our quality issue, We will give replacement any time.
Q&a;A:
1. Q:How to start the cooperate?
A: Lets start with the sale orders. In 3-5days will be ready the sales, 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 teerature,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.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.