Your Professional 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.

 

 
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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 Battery

 

Power On The Go

Batteries make portable devices like phones, laptops, and power tools possible, allowing users to access power anywhere.

01

Versatile Applications

They power a wide range of devices, from small electronics to electric vehicles and backup power systems.

02

Storing Surplus Energy

Batteries can store electricity generated from renewable sources (like solar and wind) or conventional sources, ensuring energy is used efficiently and not wasted.

03

Backup Power

During power outages, batteries can provide a reliable backup power source, keeping essential appliances and devices running.

04

Reduced Reliance On The Grid

By storing and using their own energy, homes and businesses can reduce their dependence on the electricity grid, potentially saving money and improving energy security.

05

 

Applications of Battery
50mah Polymer Lithium Ion Battery
Rechargeable Lithium Ion Polymer Battery Pack 3.7 V
Lithium Ion Polymer Battery 3.7 V 250mah
3.7v 280mah Polymer Lithium Ion Battery

Portable Electronics
Lithium-ion batteries have become the lifeblood of portable electronics, powering our smartphones, laptops, tablets, and wearable devices. Their compact size, high energy density, and long-lasting performance have made them the preferred choice for these devices. With their ability to provide sustained power and quick recharge times, lithium-ion batteries have transformed the way we communicate, work, and entertain ourselves on the go.

 

Electric Vehicles
The automotive industry has embraced the potential of lithium-ion batteries, enabling the widespread adoption of electric vehicles (evs). These batteries offer the necessary power and range for evs, thereby reducing dependence on fossil fuels and mitigating environmental impact. With continuous advancements in battery technology, the ev market is experiencing exponential growth, paving the way for a greener and sustainable transportation future.

 

Renewable Energy Storage
Lithium-ion batteries play a vital role in the storage of energy generated by renewable sources such as solar and wind. They provide a means to capture and store excess energy during peak production periods and release it during times of high demand or low generation. This helps stabilize the power grid and promotes the integration of renewable energy sources into the existing infrastructure, fostering a cleaner and more resilient energy system.

 

Medical Devices
In the realm of healthcare, lithium-ion batteries have proven indispensable in various medical devices. From pacemakers to insulin pumps and portable medical equipment, these batteries ensure reliable and uninterrupted power supply, enhancing patient care and quality of life. Their small form factor and high energy density make them ideal for implantable and wearable medical devices, where long battery life and safety are paramount.

 

Aerospace And Defense
Lithium-ion batteries have found their way into the aerospace and defense sectors, powering satellites, drones, and military equipment. Their lightweight design and high energy density make them invaluable for applications where weight reduction and long-duration power are critical. From deep space exploration to tactical missions, these batteries offer the necessary power storage capabilities for advancing technological frontiers.

 

Battery Power Density Comparision Table

Battery Type

Energy Density (Wh/kg)

Life Cycle

Toxicity

Li-Ion

126-190

500-1,000

Low

Ni-Cd

45-80

1000

High

Ni-MH

100

300-500

Low

Li-ion polymer

185

300 – 500

Low

Lead Acid

30-50

200-300

High

Lithium–Sulfur

55

50-100

Non- Toxic

 

Product Description

Items

Specifications

Batteries

3.7v 50mah 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

1X1X1 cm

Single gross weight

1.000 kg

 

Lead Time

Quantity (pieces)

1 - 3000

> 3000

Lead time (days)

35

To be negotiated

 

 

Packaging & Shipping

 

productcate-768-556

 

 

FAQ

 

Q: Could I get a sample for checking the quality?

A: Samples testing are available. Please click here to get the sample policy.

Q: What’s the lead time of production?

A: It depends on order quantity. Normally, the lead time is about 5-7 working time for mass order.

Q: What kinds of the payment can I pay with?

A: L/C, T/T Bank transfer, Paypal, Western Union, Alibaba Trade Assurance.

Q: How about the warranty time?

A: Our products are with 12 months warranty, 100% replacement for free if quality problem occurred.

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

3 7 V 300mah Li Polymer Rechargeable Battery, Lithium Ion Polymer Battery 3 7 V 250mah
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