Get more than 50% discharge capacity (typical) in -15°C or +55°C.
Model Name: A&S 553640
Battery size (T*W*H): 5.7 * 36.5 * 42.5mm
Wire(L):50±3mm (UL3302 30#)
Connector: SUHR-03V-S-B
Overcharge detection voltage: 4.255--4.305V
Overdischarge detection voltage: 2.950--3.050V
Overcurrent protection current: 1~3.5A
NTC:10K,B=3435±1%
PTC: 6V 1.5A
IC: DAA
Specifications
Battery size: 5.7mm × 36.5mm × 42.5mm
Weight: Approx 16.0g
Electrical Characteristics
Nominal Voltage: Average 3.7V
Charge voltage: 4.2V
Discharge Cut-off Voltage: 3.0V
Typical Capacity
850 mAh
Max Charge
830 mA
Cycle Life
500 cycles
Operating Temp
-20~+60℃
Product Description：
This high-quality lithium polymer battery is designed to meet the demands of various applications. With a capacity of 3.7v and 850mAh, it offers excellent discharge performance, ensuring uninterrupted power supply to your devices. It is UL, CB, KC, CE, and UN38.3 certified, making it a reliable and safe option for your business needs.
The battery has been tested and certified to undergo 500 cycles, which means it can be recharged and used up to 500 times without losing its capacity. This ensures long-lasting performance and helps reduce the cost of replacing batteries frequently.
One of the key features of this battery is its lightweight design, which makes it easy to carry and ideal for portable devices. It is also available in customized sizes to fit your specific requirements. This flexibility in size ensures that it can be used in a wide range of applications, including medical devices, industrial equipment, and handheld devices.
The excellent discharge performance of this battery ensures that it can deliver a consistent and stable power supply to your devices, even in high-drain situations. This makes it ideal for applications that require high levels of power, such as mobile phones and other handheld devices.
In summary, this li polymer battery is a reliable and safe option for your needs. Its UL, CB, KC, CE, and UN38.3 certifications ensure that it meets the highest safety standards. With a 500-cycle lifespan, lightweight design, and excellent discharge performance, it provides reliable power to meet the demands of your business. Its customizable size also makes it a versatile option for a wide range of applications.
Cooperation Case 01
A&S Power supplies 553640 3.7v 850mah LiPo Battery to US customers
Detailed introduction:
We start supply 553640 3.7v 850mAh Lipo Battery to an USA customer since end of 2017. This battery we got UL1642 already, In the middle of 2018, customer want to use this battery under a high temperature of 75℃, after checked with our engineer, we can use high temperature lithium material to meet it, along with customer products development. they have a large order for this battery in this year, and In early of 2020. Customer request this high temperature to apply for both UL2054 and UL1642 certification, which we done the certification on May of 2020. Thus for this AS553640 3.7v 850mAh High temperature lithium polymer battery, the charge temperature can be meet 0~+70℃ and the discharge temperature can be meet -20~+75℃.
If you need high temperature for this battery or high temperature for other size lithium polymer battery, please feel free to contact us.
Cooperation Case 02
The famous R** brand Bluetooth headset, in the United States USES 553640 3.7V 850mAh Lithium Polymer Battery
Detailed introduction:
In May 2020, we began to supply AS553640 3.7V 850mAh LiPo Batteries to American R** brand customer OEM factories in China. They chose this battery for their Bluetooth headset, since this battery we already have UL1642 and we also have reported UL2054, CB and UN38.3 in 2018 as to vigorously promote the market demand of customers. Customer trust our quality and our good service. Today we are shipping this battery in large quantities with stable quantity.
If you want to know more about this battery or the same type of Soft Pack Lithium Polymer Battery with certification, please feel free to contact us.
Thank you very much.
Performance
1 Standard Test Conditions
Test should be conducted with new batteries within one month after shipment from our factory and the cells shall not be cycled more than five times before the test. Unless otherwise defined, test and measurement shall be done under temperature of 25±2℃ and relative humidity of 45~85%. The test results are not affected evidently by such conditions of temperature 15~30℃ or humidity 25~85%RH.5.2 Measuring Instrument or Apparatus.
2 Measuring Instrument or Apparatus
2.1 Dimension Measuring Instrument
The dimension measurement shall be implemented by instruments with equal or more precision scale of 0.01mm.
Custom Lithium Polymer Battery Solutions
1. Support Customized Battery Size:
The Same Battery Capacity We Can Do Different Sizes To Meet Customer Size Limitations;
2. Support Custom Wire And Plug:
Customized Wire And Plug According To Customer’s Use Scenario Requirements;
3. Support Customized Voltage:
We Support Customized Polymer Battery Packs To Meet Customers’ Demand For Battery Voltage And Capacity Through Series And Parallel Batteries;
4. Support Custom PCM Circuit Board:
In Addition To The Standard Overcharge, Overdischarge, Short Circuit Protection, We Also Support Temperature Overheat Protection, Communication Functions And Other Customized Services;
We specialize in providing customized lithium battery solutions for medical devices, GPS trackers, wearables, and more. Our products are known for their reliability, safety, and precision engineering. Whether you need high-capacity or ultra-slim battery packs, our engineering team is ready to help bring your project to life.
Battery Support Customization (Size Voltage Capacity BMS Chip Cable Plug)
Battery Cells
With PCB and Wire
With PCB Wire and Connector
Battery Protection Board Support Customization
Terminal Cable and Plug Support Customization
Custom LiPo Battery Manufacturers in China
A&S Power Battery with Terminations, Pins, Tags
Battery is always available with different types of terminations, i.e. PC pins, tabs, solder tabs, leads, wire, cable and connectors. We hope you find the one in our product list and suite you the best. If not, our Customer Service can assist you to find one, or offer custom-made terminations to meet meet your specifications.
Custom Battery Pack
We manufacture custom battery pack assembly for electronic, industry and OEM business for decades. We are proud to serve our customers, some of them are world's most prominent companies, with engineering design, prototype, in-house testing, certifications, and mass-production. Our Customer Service can help for engineering suggestion to meet your specification.
A&S Power Battery Quality Control & Compliance
Check A&S Power Manufacturing site and product compliance.
Safety Handling and Product Design with A&S Power Lithium Battery
Handling Lithium Battery Safely.
Production Equipments
Automatic Rolling Machine
Electrolyte Injecting Machine
Automatic Tape Sticking Machine
Automatic Slitting Machine
Fully Automatic Tablet Making Machine
Aluminum-Plastic Film Punching Machine
Ultra High Vacuum Baking Machine
Thermoforming
Partnerships
Our Service
• Your inquiry related to our product & price will be replied within 24hours.
• Well-trained & experienced staff are to answer all your inquiries professional in English of course.
• OEM is highly welcomed. We have strong R&D team here to help.
• Your business relationship with us will be confidential to any third party.
• 1 year warranty of products and good after-sale service offered, please get back if you got question.
Contact Us
ShenzhenA&SPower TechnologyCo., Ltd
Tel: +86-0755-28169348
Fax:+86-0755-84157385
E-mail: info@szaspower.com
sales@szaspower.com
Address: Rm1312,A Block,Weidonglong Business Building,No.2125 Meilong Rd,Longhua,Shenzhen,Guangdong,518109,CHINA
Our website lists just some of the products we have successfully supplied,but please note this is just representative and an example of our products&service,so,if you cannot see the product you are looking for, please contact us today!!!
Frequently Asked Questions (FAQ)
1. What certifications does the AS553640 3.7V 850mAh LiPo battery have?
The AS553640 lithium polymer battery is certified with UL1642, UL2054, CB (IEC 62133), CE, KC, CCC, UN38.3, and WERCS. These certifications help manufacturers meet safety, transportation, and market-entry requirements for global projects.
2. Is the AS553640 battery suitable for medical devices?
Yes. The AS553640 battery is widely used in portable medical devices thanks to its compact size, lightweight design, stable 3.7V output, and multiple international safety certifications. It is suitable for handheld healthcare equipment, monitoring devices, and portable diagnostic products.
3. What applications commonly use the AS553640 850mAh LiPo battery?
This battery is commonly used in:
Medical devices
Bluetooth headsets
Smart wearable devices
GPS tracking equipment
Consumer electronics
IoT products
Portable lighting devices
Automotive electronic accessories
Its slim profile makes it ideal for compact electronic designs.
4. Can the AS553640 battery be customized for OEM and ODM projects?
Yes. A&S Power provides OEM and ODM customization services, including:
Custom connectors
Wire length customization
PCM/BMS protection circuits
NTC temperature sensors
Custom labels and packaging
Battery pack assembly
Customized solutions can be developed according to your device requirements.
5. Does the AS553640 battery include safety protection features?
Yes. The battery can be supplied with protection circuitry that includes overcharge protection, over-discharge protection, over-current protection, and short-circuit protection. Optional NTC and PTC components are also available to enhance safety performance.
6. Can this battery be shipped internationally?
Yes. The AS553640 battery has passed UN38.3 transportation testing and can be shipped internationally in compliance with applicable lithium battery transportation regulations. This makes it suitable for export-oriented OEM projects.
7. Why choose the AS553640 battery from A&S Power?
The AS553640 offers a combination of compact dimensions, reliable 850mAh capacity, international certifications, stable performance, and OEM customization support. It is an ideal solution for manufacturers seeking a certified lithium polymer battery for commercial and industrial applications.
8. How can I get a quotation for the AS553640 battery?
To receive a quotation, simply provide your required quantity, application details, connector requirements, wire specifications, and any certification needs. Our engineering team will recommend the most suitable battery solution and provide a customized offer.
You can pay via T/TL/C at sightWestern Union Cash etc. 100% T/T in advance for samples. For large quantities 30% T/T in advance as soon as order confirmed and the balance before shipping via T/T or L/C etc. If you prefer other payment terms please contac
Can lithium batteries be customized for specific applications?
Yes we provide tailored lithium batteries solutions to meet our customers' precise needs. Our customization options include size capacity voltage maximum discharge rate and other parameters. Contact us to explore how we can create a battery solution that fits your requirements perfectly.
What is delivery time if we place an order?
It depends order quantities. Usually we can deliver goods within 3 -5 working days for small orders for more QTY. order let's confirm when you place official order.
Are you factory?
We have factories both in Dongguan China. The factory covers an area of 8000㎡ Has 500 employees And 25 R&D engineers.We can produce 100000 lithium batteries every dayThe factory has passed SGS & TUV QMS certification.
What is the minimum order quantity (MOQ) for lithium batteries?
The minimum order quantity of customized batteries is 3000 pcs. MOQ varies by battery type There is no minimum order quantity for conventional batteries.Contact us for details.
Can I get samples of lithium batteries before placing a bulk order?
Yes many suppliers offer samples of lithium batteries for testing and evaluation purposes. However there are costs associated with obtaining samples including sample fees and freight charges.
How safe are A&S Power Lithium Batteries?
Our batteries have special mechanisms to prevent overcharging discharging or short-circuiting.Each battery is tested for cycles safety aging and voltage before delivery.
