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[China]
Trade Verify
Address: Building B, Fenglin International Centre, Longgang Centre Town, Longgang District, Shenzhen, China.
Contact name:Sales Team
MAXPOWER INDUSTRIAL CO.,LTD |
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Verified Suppliers
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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 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 |
| 60±25%R.H. | ||||
| Discharge | -20~60℃ | |||
| 60±25%R.H. | ||||
| 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. | |
| 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 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 |
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:
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.
