Introduction
The 300mAh Bluetooth Headset Battery is a lightweight lithium battery designed for use in Bluetooth headsets and small wireless devices, providing power supply and extended battery life support for wireless audio products.
Parameter
|
Items |
Specifications |
|
Batteries |
3.7v 300mah lipo battery |
|
Charge voltage |
4.2V |
|
Nominal voltage |
3.7V |
|
Nominal capacity |
280mAh 0.2C Discharge |
|
Charge current |
Standard Charging: 0.5C Rapid charge: 1.0C |
|
Standard Charging Method |
0.5C CC (constant current) charge to 4.2V, then CV (constant voltage 4.2V) charge till charge current decline to ≤0.05C |
|
Charging time |
Standard Charging: 2.75hours(Ref.) Rapid charge: 2hours(Ref.) |
|
Max. charge current |
1.0C |
|
Max. discharge current |
1.0C |
|
Discharge cut-off voltage |
2.75V(0.2C) |
|
Operating temperature |
ChCharging: 0 °C ~45 °C Discharging:0 °C ~45 °Carging: 0 °C ~45 °C |
|
Discharging: Storage temperature0 °C ~45 °C |
-10°C~ +45 °C |
|
Dimension |
Length: 50±2mm (not including tabs) Width: 20±0.5mm Thickness:10±0.2mm |
|
Drop Test |
The cell is to be dropped from a height of meters twice onto concrete ground. No fire, no leakage |
|
Cycle time |
≥300times |
Features of Bluetooth Headset 300mah Battery
Stable Power Supply
The Bluetooth Headset 300mAh Battery uses low internal resistance Li-Po cells, keeping voltage fluctuations within ±0.05V during calls, Bluetooth transmission, and noise cancellation, preventing audio stutter, restarts, and disconnections.
Extended Cycle Life
Under standard charging and discharging conditions, the battery offers a cycle life of approximately 400–500 cycles-equivalent to a service life of 2–3 years-thereby minimizing post-sales issues resulting from battery degradation.
High Dimensional Consistency
Dimensional tolerances are controlled within ±0.2mm, making the battery ideal for automated production lines and significantly improving assembly yield rates.
Customization Available
Capacity, dimensions, and tab orientation can all be customized to suit a wide variety of headset structural designs.
Customization
|
Item |
Customization Details |
|
Capacity |
Adjustable range from 200mAh to 500mAh |
|
Dimensions & Structure |
Thickness, length, and width can be adjusted according to device space requirements |
|
Connection Method |
Supports different tab orientations and FPC connection methods |
|
Appearance & Labeling |
Customizable outer film color, logo, and barcode information |
|
Protection Board Parameters |
Protection voltage, overcurrent value, and response time can be adjusted according to device requirements |
FAQ
Q: How does the 300mAh Bluetooth Headset Battery work?
A: The 300mAh Bluetooth Headset Battery stores and releases electrical energy through the intercalation and de-intercalation of lithium ions between its positive and negative electrodes, providing a stable 3.7V power supply to the headset.
Q: What is the minimum order quantity (MOQ)?
A: The standard MOQ is 500–1,000 units, subject to adjustment based on specific customization requirements.
Q: What is the lead time?
A: The lead time for standard models is approximately 7–15 days, while customized models take about 15–25 days.
Q: How is it packaged?
A: The 300mAh Bluetooth Headset Battery is packaged using anti-static trays and cartons to ensure safe and stable transport.
Q: How is it installed?
A: It is secured to the power supply terminal of the mainboard via tab welding or an FPC connection.
Q: Can it be exported?
A: Yes, it complies with the UN38.3 standard and is approved for both air and sea freight export.
Q: Are samples available?
A: Yes, samples are available for testing purposes to facilitate product verification and structural compatibility checks.
Q: How should it be stored?
A: It is recommended to store the battery in a dry environment at a temperature of 20–25°C, avoiding exposure to high temperatures and humidity.
Q: Do you support mixed orders?
A: Yes, we support the production of mixed orders involving different capacities and specifications.
Certificate
Certified with ISO9001, UL, KC, CCC, and RoHS certifications, meeting international quality and safety standards.

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