China suppliers rechargeable ultra thin lipo 3.7v battery lithium polymer batteries li-polymer 3.7v battery

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$0.50 - $1.70 / Pieces | 10 Piece/Pieces (Min. Order)
Lead Time:
Quantity(Pieces) 1 - 100 101 - 5000 5001 - 100000 >100000
Est. Time(days) 3 7 10 Negotiable
Customized logo (Min. Order: 2000 Pieces)
Customized packaging (Min. Order: 2000 Pieces)


Graphic customization (Min. Order: 2000 Pieces) Less
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Quick Details
Place of Origin:
Guangdong, China (Mainland)
Brand Name:
Model Number:
Nominal Capacity:
Nominal Voltage:
Product name:
China suppliers 3.7v lipo battery
Battery type:
1 Year
Cycle life:
Over 500 times
G3J +8205
Supply Ability
Supply Ability:
20000 Piece/Pieces per Day China suppliers 3.7v lipo battery
Packaging & Delivery
Packaging Details
Standard export package for batteries, less than 10Kgs/cn
China suppliers 3.7v lipo battery
Lead Time :
Quantity(Pieces) 1 - 100 101 - 5000 5001 - 100000 >100000
Est. Time(days) 3 7 10 To be negotiated

China suppliers rechargeable ultra thin lipo 3.7v battery lithium polymer batteries li-polymer 3.7v battery 


Part Number: 502030

Capacity: 250mAh (min.)

Voltage: 3.7V

Dimension: 5.2*20.5*31.5mm

PCM: Seiko S8261 (10K NTC, 84C melt available)

Application: bluetooth bracelet lithium battery, portable wifi devices, portable router,

                       LED flash lighting, medical equipment

                       Bluetooth printer, barcode printer, label printer, thermal printer

                       mobile printer, thermal invoice printer, POS terminal

Lead time: 14 days after order confirmation

Packing: Standard export package for batteries, less than 10Kgs/cn



Preliminary Specification

1. General:

Battery with safety circuit and wires

Cell: HPL502030 250mAh 3.7V

PCM: S8261-G3J (DW01*8205 is available)

Configuration: 1S1P (selected)

Weight: approx. 6g


2. Electrical Specification

Rated Capacity: 250mAh min, 300mAh typical

Nominal voltage: 3.7V

Watt-hour rating: 1.11Wh

Charging Method: Constant current + constant voltage

Max. charge voltage [V]: 4.20 (+/- 50mV)

Max. continuous charge current: 250mA

Rec. Charge cut off: by current 5mA or timer 2.5h

Max. continuous discharge current: 300mA

Rec. discharge cut off: 3.0V

Internal impedance: 200mΩ below

Exp. Cycle life: 500 cycles more than 80% of initial capacity (1C at 20 °C)

Cell protection

Overcharge detection: 4.35±0.025V

(0.5 to 1.5 sec. delay, resume 4.15 ± 0.05V or at discharging current)

Overdischarge detection: 2.30±0.05V

(0.1 to 0.2 sec. delay, resume 2.9±0.1V)

Overcurrent detection: 2A to 4A (5 to 30m sec. delay at discharge)


3. Ambient conditions:

Temperature range:

- Charge: 0 to +45 C

- Discharge: -20 to +60C

- Charge retention/storage [%]: 1 year at -20 to +25C

                                                           3 month at -20 to +45C

Humidity: 65+/- 20% RH


4. Environmental and Safety:

Please follow Hypercell Handling and Safety Precautions for Li ion and Lithium Polymer.

The partial cell is approved according UL1642.

This battery meets the requirements of Battery Directives, and the battery parts are RoHS-Compliant.




Metal oxides: LiNi-x-yCoxMnyO2


1. High energy density

2. better cost

3. Stable cycle performance

4. Safe




1. We could pack different battery solutions with requirement for voltage and capacity.

2. Each cells could be test carefully with capacity, voltage and internal impedance for battery pack consistency.




Order procedures:

1. Specification and RFQ confirmation

2. Sample delivery and test

3. Place order with MOQ

4. Production

5. QC test

6. Shipment


Company information:




1. This is not what you needed? No worries, pls just let us know the voltage & capacity,we will customize for you. We have a wide range of lithium polymer cells with different sizes, each can be assembled with different configurations, like 1S1P, 1S2P,1S3P etc or  1S1P,2S1P, 3S1P etc to get different voltages and capacities.








 2. Not sure if the battery is qulified. No worries, we welcome you to visit our factory to experiece the manufacturing, we accpet sample order to test the specification , we accpet the third party inspection and we have one-year warranty.


3. What we are in persuit of is a long-term win-win business relationship. 


4. If you'd like to view more products, pls click




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