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Low Self Discharge Lipo Battery 282028 / 3.7V 140mAh Lithium Polymer Battery for Wearable Devices

Categories Lithium Polymer Battery
Model Number: UNM282028
Certification: UN38.3, MSDS, CE, CB, IEC62133, PSE, KC, UL1642...
Place of Origin: Guangdong, China
MOQ: 5000PCS
Price: Negotiable
Payment Terms: T/T , WorldFirst , Payoneer , PingPong , Paypal , Alipay , Western Union , ...
Supply Ability: 200,000.00 Pieces Per Day
Delivery Time: 7-35 days
Packaging Details: Inner Tray + Inner Box + Outer Carton
Brand Name: UNEMETECH
Type: Lipo Batteries
Nominal Voltage: 3.7V
Nominal Capacity: 140mAh
Charge Voltage: 4.2V
Max Charge and Discharge Current: 1.0C/140mA
Battery Pack Size: Max 2.8*20.5*30.5mm
Cycle Life: ≥500 Times
Protection: PCM,Over-charge over-discharge short-circuit protect
Application: smart earphones, smart bands, gps...
Warranty: 1 Year
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Low Self Discharge Lipo Battery 282028 / 3.7V 140mAh Lithium Polymer Battery for Wearable Devices



Low Self Discharge Lipo Battery 282028 / 3.7V 140mAh Lithium Polymer Battery for Wearable Devices


Model: UNM282028
Voltage: 3.7V
Capacity: 140mAh

Battery Cell Size: 2.8*20.5*28.5mm
Battery Pack Size: 2.8*20.5*30.5mm

Lipo Batteries Advantages:Large capacity density, small self-discharge, long life, good safety, no memory effect, small thickness, thin, light weight, large capacity, small internal resistance, good discharge characteristics, simple design, shape can be customized


Low Self Discharge Lipo Battery 282028 Description

The 282028 low self-discharge lithium polymer battery operates at 3.7V with a capacity of 140mAh, making it an excellent choice for wearable devices. This battery is designed to maintain its charge over extended periods, ensuring reliable performance for applications like fitness trackers, smartwatches, and health monitors. Its compact size allows for easy integration into sleek and lightweight designs, enhancing user comfort. The low self-discharge feature means less frequent charging is required, which is ideal for wearables that need to operate consistently. Overall, the 282028 battery offers a dependable energy solution for modern wearable technology.


Low Self Discharge Lipo Battery 282028 Parameters

Battery Type: Lipo Batteries

Configuration: 1S1P

Part Number: 282028

Nominal Capacity: 140mAh

Nominal Voltage: 3.7V

Weight: appr. 4.0g

Protection Circuit(PCM): Yes

Thermistor(NTC): No(Available)

Lead wires: TBD, length: TBD

Connector: Supported

ItemDescriptionDimension
TBattery pack Thickness max.Initial2.8mm
After 500 Cycles3.1mm
WBattery Pack Width max.20.5mm
HBattery Pack Height max.30.5mm
AWire LengthTBD
ConnectorSupportedTBD
Battery Pack Impedance≤160mΩ
ItemParameter
Charging Voltage4.2V
Discharging cut-off Voltage3.0V
Standard Charging Current0.2C/28mA
Rapid Charging Current1.0C/140mA
Standard Discharging Current0.2C/28mA
Rapid Charging Current1.0C/140mA
Cell WeightAppr: 4.0g
Shipment Voltage≥3.8V (Changeable)
Cell Impedance≤50mΩ
Operating TemperatureCharging: 0°C ~ 45°C
Discharging: -20°C ~60°C
Visual InspectionDo not appear such as tear, corrosion, deformation, gas bulge, leakage and other harmful phenomena that damage commercial value.

Certificates and Reports of Lipo Batteries

Low Self Discharge Lipo Batteries 282028 / 3.7V 140mAh Lithium Polymer BatteryLow Self Discharge Lipo Batteries 282028 / 3.7V 140mAh Lithium Polymer Battery

Applications of Lipo Batteries

Low Self Discharge Lipo Batteries 282028 / 3.7V 140mAh Lithium Polymer Battery

Packaging and Delivery of Lipo Batteries

Low Self Discharge Lipo Batteries 282028 / 3.7V 140mAh Lithium Polymer Battery

Precautions for Use

1. Charging: Use a charger designed for polymer lithium batteries. Avoid overcharging.
2. Discharging: Prevent deep discharge by avoiding extremely low voltage levels. Most polymer lithium batteries have built-in protection circuits.
3. Temperature: Operate within the recommended temperature range provided by the manufacturer. Avoid exposing to extreme temperatures.
4. Physical Handling: Handle with care to avoid damage or leakage. Avoid impacts, punctures, or bending.
5. Compatibility: Ensure compatibility with your device in terms of voltage, capacity, and size.
6. Storage: Store in a cool, dry place away from direct sunlight. Avoid storing at full charge or completely discharged.
7. Transportation: Comply with transportation regulations and guidelines.
8. Disposal: Dispose of properly. Recycle at designated facilities or follow local regulations.


After-sales Service

1. After-sales warranty:
- According to the contract, we provide a certain warranty period for the exported lithium polymer batteries.
- During the warranty period, if the product has quality problems under normal use conditions, we will provide replacement or return service according to the after-sales policy.

2. Product quality assurance:
- We guarantee that the exported lithium polymer batteries comply with international quality standards and regulations, and undergo strict quality control and testing to ensure their performance and reliability.
- If you find product quality problems under normal use conditions, please contact us within the contractual warranty period, we will actively deal with it and provide solutions.

3. Problem solving:
- If you encounter any problems or have any complaints during the after-sales service, please contact our customer service team in time.
- We will be happy to provide you with support and actively seek solutions to your problems to ensure your satisfaction and good cooperative relationship.


Our Advantages

◆ Over 10 years of li-polymer battery manufacture & export experience
◆ Professional R&D team supporting
◆ Excellent quality, advanced equipment and competitive prices
◆ Good package, cheap freight cost, faster delivery, best after-sales service
◆ OEM / ODM are welcome, we can customize different size to meet customer's requirements
Long life cycle of charging & discharging


The size of lithium polymer battery can be customized. We have advantage making special Li-Po battery such as extremely thin Li-Po battery , curved battery, high temperature Li-Po battery, low temperature Li-Po battery and special shape Li-Po battery (round)

***Please contact us to get more detailed information and free samples***

Long Cycle Life 3.7V 530mAh Customized Lithium Polymer Battery 403040 with UL1642

Quality Low Self Discharge Lipo Battery 282028 / 3.7V 140mAh Lithium Polymer Battery for Wearable Devices for sale
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