Our goal is to be your true partner in 40 Series Battery field in China. We are a private enterprise specializing in the field of small polymer lithium-ion batteries, integrating research and development, production, and sales; Committed to providing customers with environmentally friendly, safe, and durable polymer lithium-ion battery products and solutions. The company focuses on the Bluetooth polymer industry, and its products are widely used in Bluetooth earphones, smart wearables, smart healthcare, smart furniture, smart jewelry, GPS and other fields.The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
-
![401015 Bluetooth Headphone Lithium Battery]()
401015 Bluetooth Headphone Lithium Battery401015 Bluetooth Headphone Lithium Battery is a precision 4.0mm ultra-slim cell. It solves tight housing constraints in headsets while preventing capacity fraud and voltage drops through factory-graded Grade-A density.view more -
![25mAh 3.7V Bluetooth Headphone Polymer Lithium Battery - UN38.3 Certified]()
25mAh 3.7V Bluetooth Headphone Polymer Lithium Battery - ...25mAh 3.7V Bluetooth Headphone Polymer Lithium Battery utilizes Grade-A micro-cells to achieve sub-gram weights. It resolves the issue of wearer fatigue in TWS devices while maintaining reliable, high-cycle energy density.view more -
![50mah Polymer Lithium Ion Battery]()
50mah Polymer Lithium Ion BatteryThe 50mAh Polymer Lithium-ion Battery is a 3.7V miniature energy storage battery suitable for powering Bluetooth headsets, smart wristbands, and IoT devices.view more -
![Lithium Ion Polymer Battery 3.7 V 35mah]()
Lithium Ion Polymer Battery 3.7 V 35mahThe 3.7V 35mAh Lithium-Ion Polymer Battery is an ultra-miniature rechargeable lithium polymer battery, suitable for small electronic products such as Bluetooth devices, wearable electronics, and miniature smart sensors.view more
Why Choose Us
Product Application
The company focuses on the bluetooth consumer industry, and its products are widely evaluated in the fields of bluetooth headsets, smart wearables, smart medical care, smart furniture, smart jewelry, gps, etc.
Our Products
Polymer lithium battery, tws, 30 series, 40 series, 50 series, 60 series, 70 series, 80 series, 90 series, 10 series, 11 series, fast charging, 1-3c series, customized models.
Our Certificates
Ccc certification, 9001 quality system certification, kc certification, ul certification, rohs standard, two invention patents, utility patents.
Production Equipment
Including hundreds of equipment such as winders, mixers, automatic slitting machines, automatic film making machines, winders, vacuum ovens, etc...
Advantages of 40 Series Battery
Extended runtime
Allows uninterrupted work, reducing the need for frequent recharging.
High performance
Handles power-intensive tools and tasks efficiently.
Durability
Better suited for continuous use in professional or industrial environments.
Versatility
Accommodates a wide range of tools and applications, enhancing project flexibility.
Applications of 40 Series Battery
Consumer electronics
40 Series Batterys are commonly used in smartphones, tablets, laptops, digital cameras, and other portable electronic devices due to their high energy density and long battery life.
Drones and remote-controlled vehicles
40 Series Battery are used to power drones, quadcopters, and other remote-controlled vehicles due to their lightweight and high power output.
Medical devices
40 Series Batterys are used in medical devices such as implantable devices, portable monitoring equipment, and diagnostic tools due to their small size, high energy density, and long battery life.
Electric vehicles
40 Series Batterys are used in electric vehicles such as electric cars, bikes, and scooters due to their high energy density and ability to deliver high power output.
Aerospace and defense
40 Series Batterys are used in aerospace and defense applications such as satellites, spacecraft, and missiles due to their lightweight and high energy density.
Power banks and backup power
40 Series Batterys are used in power banks and backup power systems to provide a portable and reliable source of power for charging electronic devices or providing backup power during power outages.
Product Description
|
Items |
Specifications |
|
Batteries |
3.7v 40mah 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) |
|
Perating 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 meter twice onto concrete ground. No fire, no leakage |
|
Cycle time |
≥300Times |
Delivery
|
Selling Units |
Single item |
|
Single package size |
48.2X50X28 cm |
|
Single gross weight |
40.000 kg |
Lead Time
|
Quantity (pieces) |
1 - 100 |
101 - 1000 |
1001 - 10000 |
> 10000 |
|
Lead time (days) |
5 |
10 |
30 |
To be negotiated |
Packaging & Shipping
FAQ
As one of the most professional 40 series battery manufacturers and suppliers in China, we also support custom service. Please feel free to wholesale bulk cheap 40 series battery from our factory. For price consultation, contact us.
25mAh 3 7V Bluetooth Headphone Polymer Lithium Battery UN38 3 Certified, 50mah Polymer Lithium Ion Battery, Lithium Ion Polymer Battery 3 7 V 35mah
