Li-polymer Cell Factory Wholesale Battery UFX 502050 3.7V 500mAh Rechargeable Battery

Item No.: ufx005
UFX502050 3.7V 500mAh is a single-cell square lithium-ion battery with a nominal voltage of 3.7V, which can be used in various digital products. The specific dimensions can be customized according to customer requirements.
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Description FAQ Review
Description

Ufine Product Features

High energy density

Long cycle life

Capability of discharge at ultra-low temperature of -40℃

Ability to be designed for high voltage (up to 4.4V)

Customizable sample and mass production according to customer needs. 

Specs of UFX102540 1200mAh 3.7V

1、Mechanical Characteristics

Cell:

UFX502050

PCM:

Yes

NTC:

No

Weight:

appr. 10g

Configuration:

1S1P

Demension 

Max 5*20*52mm 

2、Electrical Specification

Capacity:

500mAh

Nominal Voltage:

3.7V

Energy:

4.44Wh

Internal Impedance:

less than 180mΩ

Max. Charge Voltage:

4.2V

Discharge Cut Off:

2.75V

Max. Charge Current:

500mA

Max. Discharge Current:

500mA

Standard Charge Current:

250mA

Standard Discharge Current:

250mA

Charge Temp. Range:

10°C to 45°C

Discharge Temp. Range

-20°C to 60°C

Storage Temp. Range

1 year at -20℃ to +30℃ 

 Cycle life:

100 cycles ≥92% 

3 moths at -20℃ to +45℃

300 cycles ≥88% 

1 month at -20℃ to +60℃

500 cycles ≥80%  

 3、Cell protection

Overcharge Detection :

4.28 ±50mV (50 to 200msec delay, release 4.08V ±50mV)

Overdischarge Detection:

2.4V ±100mV (20 to 100msec. delay, release 3.0V ±100mV)

Overcurrent Detection:

2.5A to 4.0A (8 to 16msec. delay)

Short protection:

Yes

4、Cycle life Characteristics

5、Discharge Characteristics

                   
 1

Product Details

Ufine is a manufacturer  with independent research and development and production of polymer lithium-ion batteries. With years of experience in the field of polymer lithium-ion battery solutions, We have accumulated rich  technical experience. Currently, the company offers more than 300 different product models, all certified with KC, UL, CB, and other certifications.Moreover, We can quickly design and develop new products according to customer needs and arrange sample testing. 

Why Choose Ufine to OEM or ODM Battery

UFine battery has over 30 professional engineers and technical staff who can provide polymer lithium battery solutions for you. As a lithium battery manufacturer, we are capable of rapid design, customization, and bulk production. Here are the main characteristics of our company:
1、Source manufacturer, strong factory, and powerful design and development capabilities.
2、
Short delivery time and sufficient inventory.

3、Self-produced, sufficient capacity, refuse false labeling, and guarantee capacity.
4、Strict quality control through a full range of quality systems from raw materials to finished products.
5、Our products are certified and meet various international battery standards, allowing us to directly export to markets such as Europe, America, and Korea.
6、Our team of professional foreign trade sales engineers can quickly respond to customer inquiries and provide solutions

Factory Photos

Display Of Testing Equipment


Certification


 1

Product Details

Ufine is a manufacturer  with independent research and development and production of polymer lithium-ion batteries. With years of experience in the field of polymer lithium-ion battery solutions, We have accumulated rich  technical experience. Currently, the company offers more than 300 different product models, all certified with KC, UL, CB, and other certifications.Moreover, We can quickly design and develop new products according to customer needs and arrange sample testing. 

 1Ufine Product Features

High energy density

Long cycle life

Capability of discharge at ultra-low temperature of -40℃

Ability to be designed for high voltage (up to 4.4V)

Customizable sample and mass production according to customer needs. 

Specs of UFX403759 1000mAh 3.7V

UFX502050 500mAh 3.7V

Capacity

500mAh

Nominal Voltage

3.7V

Charging Voltage

4.2V

Size

5*20*52mm(mAX)

Charging Current

Typically 0.2C to 1C

Discharging Current

Typically 0.2C to 1C

Charging Temperature

0°C to 45°C

Discharging Temperature

-20°C to 60°C

Storage Temperature

 -20°C to 45°C

Cycle Life

Typically 500 to 800 cycles

Internal Resistance

less than 180mΩ

Weight

Typically 10g

Certification

MSDS

Cycle Life Test


Why Choose Ufine to OEM or ODM Battery

UFine battery has over 30 professional engineers and technical staff who can provide polymer lithium battery solutions for you. As a lithium battery manufacturer, we are capable of rapid design, customization, and bulk production. Here are the main characteristics of our company:
1、Source manufacturer, strong factory, and powerful design and development capabilities.
2、
Short delivery time and sufficient inventory.

3、Self-produced, sufficient capacity, refuse false labeling, and guarantee capacity.
4、Strict quality control through a full range of quality systems from raw materials to finished products.
5、Our products are certified and meet various international battery standards, allowing us to directly export to markets such as Europe, America, and Korea.
6、Our team of professional foreign trade sales engineers can quickly respond to customer inquiries and provide solutions

Factory Photos

Display Of Testing Equipment


Certification


FAQ
Q: What is the lifespan of a polymer lithium-ion battery?
A: Typically, the lifespan of a polymer lithium-ion battery can reach 300-500 cycles of charge and discharge.

Q: Can a polymer lithium-ion battery be overcharged?
A: No, it cannot. Overcharging can cause the chemical reactions inside the battery to become irreversible, which can damage the battery's structure and even lead to dangerous situations such as battery explosions.

Q: Can a polymer lithium-ion battery be over-discharged?
A: No, it cannot. Over-discharging can cause the electrolyte in the battery to break down and the chemical reactions inside the battery to become out of control, which can damage the battery's structure and even lead to dangerous situations such as battery explosions.

Q: How should polymer lithium-ion batteries be stored?
A: Polymer lithium-ion batteries should be stored in a cool, dry, and well-ventilated place. If not in use for a long time, the battery should be fully charged before storage, and its battery level and status should be checked regularly.

Q: Can polymer lithium-ion batteries be used at any temperature?
A: The optimum operating temperature for polymer lithium-ion batteries is 20-25℃, but they can also be used at other temperatures. However, their performance may be affected to some extent.

Q: How should polymer lithium-ion batteries be charged correctly?
A: During charging, the original charger or a charger that meets the battery specifications should be used, and charging should be carried out in accordance with the charging requirements specified in the battery specifications and usage manual. Typically, the charging current for polymer lithium-ion batteries should be around 1C of the battery capacity.

Q: What safety precautions should be taken when using polymer lithium-ion batteries?
A: When using polymer lithium-ion batteries, care should be taken to avoid overcharging, over-discharging, short circuits, high temperatures, ignition sources, and to avoid using excessively worn batteries, storing the batteries for extended periods in high temperature or humid environments, and direct contact between the battery and other metal substances. At the same time, when using and storing polymer lithium-ion batteries, care should be taken to operate in accordance with the battery specifications and usage manual.
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