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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![Lithium Ion Polymer Battery 3.7 V 240mah]()
Lithium Ion Polymer Battery 3.7 V 240mahBatteries: 3.7v 240mAh lipo batteryview more
Charge voltage: 4.2V
Nominal voltage: 3.7V
Nominal capacity: 250mAh 0.2C Discharge
Charge current: Standard Charging: 0.5C Rapid charge: 1.0C -
![Battery Of Bluetooth Headphones 300mah]()
Battery Of Bluetooth Headphones 300mahBatteries: 3.7v 300mAh lipo batteryview more
Charge voltage: 4.2V
Nominal voltage: 3.7V
Nominal capacity: 250mAh 0.2C Discharge
Charge current: Standard Charging: 0.5C Rapid charge: 1.0C -
![3.7 V 320mah Lithium Polymer Battery]()
3.7 V 320mah Lithium Polymer BatteryBatteries: 3.7v 320mah lipo batteryview more
Charge voltage: 4.2V
Nominal voltage: 3.7V
Nominal capacity: 280mAh 0.2C Discharge
Charge current: Standard Charging: 0.5C Rapid charge: 1.0C
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 70 Series Battery
The energy is relatively high. It has a high storage energy density, which has reached 460-600Wh/kg, which is about 6-7 times that of lead-acid batteries;
Long service life, service life can reach more than 6 years, lithium ferrous phosphate as the positive electrode of the battery 1C (100% DOD) charge and discharge, there is a record of 10,000 times of use;
High rated voltage (single working voltage is 3.7V or 3.2V), about equal to the series voltage of 3 nickel-cadmium or nickel-metal hydride rechargeable batteries, which is convenient for forming a battery power pack; lithium batteries can be adjusted to 3.0V through a new type of lithium battery voltage regulator technology to suit the use of small electrical appliances.
It has high power endurance, among which lithium iron phosphate lithium-ion batteries for electric vehicles can reach 15-30C charge and discharge capabilities, which is convenient for high-intensity starting and acceleration;
The self-discharge rate is very low, which is one of the most prominent advantages of the battery, generally can be less than 1% / month, less than 1/20 of the nickel-metal hydride battery;
Light weight, the weight of the same volume is about 1/6-1/5 of lead-acid products;
Strong adaptability to high and low temperature, can be used in the environment of -20 °C--60 °C, after process treatment, can be used in -45 °C environment;
Green environmental protection, regardless of production, use and scrap, does not contain or produce any lead, mercury, cadmium and other toxic and harmful heavy metal elements and substances.
Applications of 70 Series Battery
Agm batteries
Some group 70 batteries are available in agm (absorbent glass mat) technology, which offers advantages like improved performance and longer lifespan.
Deep cycle batteries
Some manufacturers also offer deep cycle versions of group 70 batteries, which are designed for applications that require repeated deep discharges, such as in solar or wind power systems.
Marine applications
Some group 70 batteries are designed for marine applications, providing reliable power for boats and other watercraft.
Product Description
|
Items |
Specifications |
|
Batteries |
3.7v 300mAh lipo battery |
|
Charge voltage |
4.2V |
|
Nominal voltage |
3.7V |
|
Nominal capacity |
250mAh 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 |
Charging: 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 |
110X60X12 cm |
|
Single gross weight |
2.000 kg |
Lead Time
|
Quantity (pieces) |
1 - 10000 |
> 10000 |
|
Lead time (days) |
3 |
To be negotiated |
Packaging & Shipping
FAQ
We're professional 70 series battery manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale cheap 70 series battery from our factory. For price consultation, contact us.
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