A&S Power UL2054/CB/KC approval 553640 3.7v 850mah Lithium polymer battery

    1.Model: AS553640

    2.Voltage: 3.7V

    3.Capacity: 850mAh

    4.Weight: 16g

    5.Dimension: 5.5*36*40mm

    6. Certification: UL2054/CB/KC/UN38.3

Parameter Table:








cut off Voltage:3V for cell



Nominal Voltage

Average  3.7V


cut off Voltage:3V for cell

AC Impedance Resistance



Discharge Cut-off Voltage



Charge Current


Standard Charge

Charge Voltage



Max. Charge Voltage



Charge Time

Approx 6.0h

Charge: 0.2CmA

Max. Charge Current



Max. Discharge Current




Approx 16.2g



Operating Temperature








less than 1 month


Recommended storage 

temperature: 20°C,at the

shipment state

less than 3 months





Major application:

1)Smart wearable device,Luminous shoes,bluetooth headset,smart mouse,warmer clothing,mini fan,Hand sprayer,Bluetooth remote control,anti-theft attendance machine,warning device,Wireless sensor,medical belts,Facial massager,Facial cleanser,Eye massager,Tire pressure monitor,GPS Tracker,Bicycle Lamp,Electric toy,

2)AR/VR,Smart helmet,portable DVD,Smart audio and video,radio,smart door lock,portable mini air purifier,IP phone,Desk lamp,Cabinet Light,wireless communicator,security camera,Multi-parameter monitor,pulse oximeter,Baby monitor,cctv camera,IOT,Bar Code Scanner,pos machine.. etc 

Company Introduction:

A&S Power Technology Co., Ltd. was established in 2001, and specialize in manufacturing and exporting rechargeable lithium battery,
like li-ion battery, li-polymer battery and LiFePO4 battery.

Company Overview
  • Established :  2001
  • Capital:    20,000,000.00 RMB
  • Location:    Dongguan,Shenzhen 
  • Employee:  > 600
  • Daily output:  100K Li-Poly, 50K LiFePO4,  80K Li-ion 18650 
IEC62133 Approval Rechargeable 303080 3.7V 850mAh Li-Polymer Lipo Lithium Polymer Battery for Earphone
  • OEM rechargeable battery manufacturer in China over 15 years
  • Specialized in Lithium polymer battery, LiFePO4 battery and Li-ion Battery pack
  • Our batteries got UL, KC, BIS,IEC62133, CB, CE, ROHS certifications
  • We're officially recognized by Skullcandy, Flex, Mitel etc. from 2013.
  • We have succeeded in selling our batteries to the international markets of America, Canada, Europe, Africa, middle-east and South Asia.
  • A&S Power has well presence in international fairs each year, such as CEBIT,Intersolar, KES, HK Electronic Fair

IEC62133 Approval Rechargeable 303080 3.7V 850mAh Li-Polymer Lipo Lithium Polymer Battery for Earphone
IEC62133 Approval Rechargeable 303080 3.7V 850mAh Li-Polymer Lipo Lithium Polymer Battery for Earphone
IEC62133 Approval Rechargeable 303080 3.7V 850mAh Li-Polymer Lipo Lithium Polymer Battery for Earphone 


1. Environmental friendly
2. High density of energy
3. Light weight
4. Low self-discharge
5. Low internal resistance
6.Long cycle life, chargeable up to 500 times
7. No memory effect
8. Doesn't contain Mercury, No fire, No explosion, No leakage

Our cooperative policy
1. Making the sample until you are satisfied with it.
3. Offering professional one-on-one service and replying your E-mail within three hours
4. Shipment sample for checking before shipment.
5. Priority to get the our latest product information after our cooperation

1. We want you to be fully satisfied with every item that you purchase from A&S Power. 
2. Furthermore, we also provide one-year warranty for batteries.
3. And if any quality problems, not caused by improper use or man-made, A&S Power will replace it one by one.


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

to 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.