Introduction of basic parameters and battery performance of 352557 3.7V 550mAh lithium polymer battery

Battery Model and Basic Information

The AS352557 Lithium Polymer Battery, manufactured by Shenzhen A&S Power Technology Co., Ltd, represents a cutting-edge solution 

for various electronic applications. This robust battery boasts a nominal voltage of 3.7V and an impressive capacity of 550mAh, making it 

an ideal choice for devices requiring reliable and efficient power.

Battery Model: AS352557 3.7V 550mAh

Battery Type: Lithium Polymer Battery Cell or Pack

Manufacturer: Shenzhen A&S Power Technology Co., Ltd

Battery Performance and Parameters

The AS352557  battery boasts impressive performance metrics:

Typical Capacity: 550mAh

Minimum Capacity: 500mAh

Voltage: 3.7V

Continuous Discharge Current: 275mAh

Max Discharge Current: 550mAh

Max Charge Current: 550mAh

AC Impedance Resistance: ≤100mΩ Cell

                                            ≤650mΩ Battery Pack

Life Cycle: 10min rest period after standard charge, 0.5C discharge to a cut-off voltage of 3.0V, 10min rest period, the capacity shall be 

measured after 500 cycles of standard charge and discharge at 25±5℃.

Warrenty: A&S power offers one-year gurantee period lithium polymer battery for our clients in case of cells with defects.

Physical Features

Despite its powerful capabilities, AS352557 3.7V 550mAh maintains a compact and lightweight design:

Size: 3.3 *25.0*57.5 mm（Thickness*Width*Height）

Weight: Approximately 10.5g

Cycle Life: 500 times

Life Usage: 1 year

The rectangle rechargeable lithium polymer battery cell or pack can be integrated into small, portable devices, while its cycle life ensures 

long-term reliability.

Also, please note that we could do customization for clients according to requirements like maxmium size, peak discharge rating and 

continuous discharge rating, connector(type), wires( NTC; length), PCB protection, and what devices you use for.

Safety Features

AS352557 3.7V 550mAh battery pack has passed CB, UN38.3, RoHS, REACH multi-safety inspections.

CE: The IEC has established an arrangement for the mutual acceptance of test reports in the field of electrical and electronic equipment: 

the IECEE Certification Body(CB) Scheme.

UN38.3: Battery chemistries that are lithium-based must undergo UN38.3 testing requirements before being transported. This testing 

certifies that the batteries are safe and will not pose a safety risk during shipping over air, water, rail, or road transportation methods.

RoHS: RoHS stands for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European 

Union and restricts the use of specific hazardous materials found in electrical and electronic products (known as EEE).

REACH: REACH is an European Union regulation covering most consumer products, requiring companies to report on chemicals used 

throughout the supply chain and in their products.

Protection Mechanisms

Over-charge Protection Voltage: 4.255--4.305V

Over-discharge Protection Voltage: 2.750--2.850V

Overcurrent protection current: 1.0~3.5A

Its protection circuit can provide multiple layers protection to avoid any internal short circuit or fire danger and set different protection 

mechanisms to moniter battery working efficiency.

Operating Environment

The AS352557 is designed to perform well across a wide range of environmental conditions:

Working Temperature Range

Charging Temperature: 0~+45℃ Max Charge: 275mA

+10~+45℃ Max Charge: 550mA

Discharging Temperature:-20~+60℃

Recommended Storage Temperature Range: 25±2℃, at the shipment state

Less than 1 month: -20~+45℃

Less than 3 months: -20~+35℃

Less than 6 months: -20~+30℃

Applications

The versatile AS352557 battery is ideal for numerous applications, including:

Bluetooth headsets, Bluetooth speakers, Smart digital watches, Emergency lighting and Security systems, Gas detectors, Smart water 

meter, Multicamera, Medical devices, Electronic cigarette, LED Driver, Sensor etc.

Advantages

High Energy Density: The AS352557 battery offers a compact design without compromising on performance, which is crucial for portable 

devices.

Lightweight Design: Weighing significantly less than traditional batteries, it enhances the overall portability of gadgets.

Durable Construction: Designed to endure multiple charge and discharge cycles, the battery ensures long-term reliability and stability.

Versatile Applications: This lithium polymer battery is suitable for a wide range of applications, including wearable tech, drones, remote 

controls, and consumer electronics.

Stay tuned for more updates on the latest advancements in battery technology. For further details about the AS352557 and other 

innovative products, visit Shenzhen A&S Power Technology Co., Ltd’s official website https://www.szaspower.com/. .