• 402040 Headset Rechargeable Li Polymer Battery 250mah
  • 402040 Headset Rechargeable Li Polymer Battery 250mah
  • 402040 Headset Rechargeable Li Polymer Battery 250mah
402040 Headset Rechargeable Li Polymer Battery 250mah

402040 Headset Rechargeable Li Polymer Battery 250mah

Product Details:

Place of Origin: guangdong china
Brand Name: JZFY
Certification: msds un38.3 ROHS
Model Number: 402040-250mah

Payment & Shipping Terms:

Minimum Order Quantity: 1000
Price: $0.59-$0.73/Pieces
Packaging Details: standard packaging
Delivery Time: 5-8work days
Payment Terms: L/C, T/T, MoneyGram
Supply Ability: 20000per
Get Best Price Contact Now

Detail Information

Warranty: 12 Months Type: Li-polymer
Capacity: 250mAh Nominal Voltage: 3.7V
Cycle Life: 500 Times OEM/ODM: Accepatable
Charge Voltage: 4.2v Color: Slive
Dimensions: 4.0*20*43(mm) Recharging Current: 0.2(C)
High Light:

402040 Headset Rechargeable Li Polymer Battery


6.25g Rechargeable Li Polymer Battery


402040 Headset 250mah lipo battery

Product Description

Headset Battery 3.7 V 250mah Rechargeable Li Polymer Battery

Product Advantages:

1. High Energy Density
2. High Output Voltage
3. Excellent Security
4. Long Cycle Life: More than 300 repeated charge/discharge cycles
5. Fast Charge Capacity: Can be fully charged in 2 to 3 hours with a rated voltage of 3.7 per cell
6. Environmental-friendly: No Pb, Cd added
7. Dual IC chips, that can anti-shortcircuit, anti-overcharger, anti-overcurrent, anti-overload
8. Injection Technology to make battery more stable
9. With short-circuit production function, safe and reliable
10. Factory mastered technology and competitive price
11. CE/UL/MSDS/UN38.3/ISO9001 standard.


1. Model: 402040

2. Voltage:3.7v

3. Capacity: 250mAh

4. Weight: 6.25g

5. Dimension:4.0*20.43mm


3.7 V Headset Battery

250mah 3.7 V

Li Polymer Battery 250mah


Basic Information

Dimension( thickness*width*length) 4.0*20.43(mm)
Charge voltage 4.2V
Nominal voltage 3.7V
Nominal capacity 250mAh
Fully charge voltage 4.2v
Ship out volatge 3.85-4.1v


Battery specification Charge current Standard Charging:0.5C 
Rapid charge:1.0C
Charging method Charge with constant current 0.5c to 4.2V, then chagre with constant voltage 4.2v till until charge current is less than 0.01C
Standard discharge current 0.2C
Max.discharge current 1C
Discharge cut-off voltage 2.5v
Operating enviroment Charging:10℃~45℃
Storage temperature -10℃~45℃
Cell Weight Approx: 6.25g
Battery recyle time 500 times
Warranty 12 months


Major application:

1. Wireless headset,Wireless speaker,Smart wearble products,Digital products

2. Portable DVD,GPS Traxker, Power bank,Flashlight,Mobile Headlight

3. Eye massage ,Stereo set,Humidifier,Electric toy,Tablet PC,E-book,POS,PDA,Medical device,ETC.


Application Lithium polymer battery:

  • Mobile phones, tablets, Bluetooth headsets, Smart watches and Other Smart wearable devices,
  • GPS, Electric toys, Beauty instruments, Aromatherapy machines, LED lights, Quadcopters, Drones ,Etc.

Company information :

ChargoFangyuan Power Technology Co., Ltd. was specializeD in manufacturing and exporting rechargeable lithium battery, like li-ion battery, li-polymer battery and LiFePO4 battery.

  • OEM rechargeable battery manufacturer in China over 10 years
  • Specialized in Lithium polymer battery, LiFePO4 battery and Li-ion Battery pack
  • Our batteries got CE,CB,KC, BIS, IEC62133, ROHS certifications
  • We have succeeded in selling our batteries to the international markets of America, Canada, Europe, Africa, middle-east and South Asia.

Looking forward to your inquiry soon and thanks for your viewing.

And welcome to contact us for more information.

Sample is available!

About us:Chargofineis a one of the biggest battery manufacturers in China with more than 10 years export experience





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Market and Technical support email within 24 hours


Lithium-ion battery pack: Cell+PCM+wire+label High energy density - perfect battery for modern needs Low self-discharge - as good as being negligent Low to minimum maintenance More options: available in all shapes and sizes- perfect option for power needs irrespective of the size of the system; Offer power solutions across the spectrum- from energy storage solutions to portable energy solutions; Versatile and efficient: From a tiny Li-ion battery that powers your smartwatch to the massive Li-ion batteries that power an electric car.



1. Q:Where can I get the price?

A: We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we'll regard your inquiry priority.

2. Q: How can I get a sample to check your quality?

A: After price confirmation, you can require for samples to check our quality.

3. Q: What about the lead time for mass production?

A: Honestly, it depends on your order quantity and the season you place the order. We suggested that you start inquiry two months before the date you would like to get the products at your country.

4. Q: What is your terms of payment?

A: We accept T/T and L/C, as well as Alibaba Trade Assurance Order.

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