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Your Professional 40 Series Battery Supplier

 

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.

 

 
 
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

 

1

Extended runtime

Allows uninterrupted work, reducing the need for frequent recharging.

2

High performance

Handles power-intensive tools and tasks efficiently.

3

Durability

Better suited for continuous use in professional or industrial environments.

4

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.

50mah Polymer Lithium Ion Battery
401020 50

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.

401020 50
4010121

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.

4010123
401020 50

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

 

productcate-723-692

 

 

FAQ

 

Q: Can I have samples order? And what is delivery time for sample order?

A: Yes, we offer samples.
The delivery time for samples is 3-10 days.You can test our batteries to know more about its performance and quality.

Q: Can you produce the order with the customer's brand?

A: Yes, of course. OEM & ODM service is warmly provided.

Q: What's the MOQ?

A: There is no MOQ for samples. For bulk order quantity, the more, the cheaper.

Q: How about the delivery time?

A: Usually, we have stable stock in warehouse. The goods can be sent within 2-7 days.

Q: Are you battery real capacity?

A: Yes, we can offer you the testing data of each cell to show its actual capacity, IR and so on.The actual capacity are more than its nominal capacity

Q: How about the quality & warranty time?

A: All products provided 5 years warranty. Lifepo4 cells with 3 year warranty. if there is any quality problem,we can send the new to replace it.

Q: Can these battery pack be compatible with my inverters?

A: Yes, our battery pack can be compatible with most brands of inverters on the market

We're professional 40 series battery manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale cheap 40 series battery from our factory. For price consultation, contact us.

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