500mAh Li-Polymer
Battery Manufacturer
- Certified: UL, CE, FCC, UN38.3, RoHS, REACH, PSE, KC
- OEM/ODM for smart wearables, medical, beauty & consumer electronics
- Fast-charge enabled: 30–60 min to 80% capacity
- OEM/ODM Food, beverage and home-goods brands with 96.9% on-time delivery.
Over a decade specializing in R&D and manufacturing of high-quality 500mAh polymer lithium-ion batteries for smart wearables, medical devices, and wireless sensors worldwide.
Full customization from size and capacity to protection circuits and connectors. Our expert engineering team ensures each battery is tailored to your exact needs and application.
24/7 rapid response, seamless technical support, and project management to guarantee efficient and smooth order fulfillment.
500mAh Polymer Lithium-Ion Battery
Other Mah Battery
500mAh Polymer Lithium-Ion Battery
We provide the best lithium polymer batteries 500mAh+ with cost-effective for your device. The price depends on your quantity. When your quantity is good, our price is the lowest. The sample is avaialable before your mass order.Lithium polymer battery manufacturer & an industrial expert from China you can trust.
- Wat-Hour Rating: 1.85Wh
- Wth Protection Circuit and Wires
- Dimension: 7,8 x 18 x 38mm
- Charge temperature(℃): 0～55℃
- Discharge temperature(℃): -20～65 ℃
- Wat-Hour Rating: 1.85Wh
- With Protection Circuit and Wires
- Dimension: 5,0 x 25 x 41mm
- Charge temperature(℃): 0～55℃
- Discharge temperature(℃): -20～65 ℃
- Wat-Hour Rating: 1.85Wh
- With Protection Circuit and Wires
- Dimension: 7,0 x 25 x 31mm
- Charge temperature(℃): 0～55℃
- Discharge temperature(℃): -20～65 ℃
- Wat-Hour Rating: 2.03Wh
- With Protection Circuit and Wires
- Dimension: 3,7 x 36 x 45mm
- Charge temperature(℃): 0～55℃
- Discharge temperature(℃): -20～65 ℃
- Wat-Hour Rating: 1.924Wh
- With Protection Circuit and Wires
- Dimension: 2,5 x 42 x 52mm
- Charge temperature(℃): 0～55℃
- Discharge temperature(℃): -20～65 ℃
- Wat-Hour Rating: 1.85Wh
- with Protection Circuit and Wires
- Dimension: 5,0 x 28 x 29mm
- Charge temperature(℃): 0～55℃
- Discharge temperature(℃): -20～65 ℃
- Wat-Hour Rating: 1.85Wh
- With Protection Circuit and Wires
- Dimension: 7,9 x 12 x 56mm
- Charge temperature(℃): 0～55℃
- Discharge temperature(℃): -20～65 ℃
- Wat-Hour Rating: 1.85Wh
- With Protection Circuit and Wires
- Dimension: 7,8 x 18 x 38mm
- Charge temperature(℃): 0～55℃
- Discharge temperature(℃): -20～65 ℃
- Wat-Hour Rating: 2.072Wh
- with Protection Circuit and Wires
- Dimension: 5,6 x 15 x 64mm
- Charge temperature(℃): 0～55℃
- Discharge temperature(℃): -20～65 ℃
Fully Customizable
What do you need to Provide for Custom Battery ?
- Application & Environment: Device, voltage range, and conditions
- Capacity & Voltage: mAh, voltage, and discharge current
- Dimensions & Form Factor: Shape, size, and terminals
- Protection & BMS: Required protections and BMS
- Connector & Wiring: Connector type and wiring specs
- Labeling & Packaging: Branding, packaging, and labels
why choose us
Why choose us
Raw Material Slurry Preparation
Strictly select active materials, binders, and conductive agents, then accurately formulate and mix at high speed in 2 high-shear reactors to ensure a uniform slurry with stable performance.
Slurry Coating & Drying
Use 3 precision coaters and zoned, temperature-controlled drying ovens to evenly apply slurry to metal foil and rapidly cure it—guaranteeing consistent adhesion and coating thickness.
Electrode Slitting
Employ 2 CNC slitting machines to cut dried electrode sheets to the exact width (tolerance ±0.1 mm), providing high-precision material for subsequent cell winding.
Automatic Electrolyte Injection & Sealing
Equipped with 6 fully automated injection & sealing systems, we inject electrolyte under vacuum and perform high-pressure heat sealing for secondary encapsulation.
Formation & Grading
In 12 automated formation units, we run CC-CV charge/discharge activation and use capacity & internal-resistance data to intelligently grade cells, enhancing uniformity and cycle life.
Vacuum Oven Aging
Utilize 10 vacuum ovens under strict temperature control (ambient to 80 °C) and high vacuum for extended drying and aging—removing residual moisture and gases to ensure stable final performance.
About SY Battery
Founded in China, SY Battery operates a modern facility with 10 automated production lines, specializing in the design and manufacture of small polymer lithium-ion batteries. Our 500mAh series is widely used in Bluetooth headsets, wearables, beauty devices, medical sensors, and smart home electronics. We provide OEM/ODM battery customization with flexible wire, shape, and BMS integration.
We deliver quick sampling in 3–5 days, technical support, strict quality control, and international certifications including CE, UL, FCC, UN38.3, RoHS, and PSE. Our monthly output exceeds 3 million cells, serving clients across the Middle East, South America, Southeast Asia, Europe, and the United States.
500mAh Battery Production
Applications for
300–1000 mAh
Li-Polymer Batteries
High-Performance & Customizable 500mAh Lithium Polymer Battery Solutions
With over 10 years of battery manufacturing experience, we offer stable, certified, and OEM-ready 500mAh lithium polymer batteries tailored to your exact product dimensions and performance needs.
Common Questions
Most Popular Questions.
We have listed some questions you may ask. If you have more inquiries about our products, you can send an inquiry to contact us.
- Battery size customization
- Wire length customization
- Connector type selection
- BMS protection circuit integration
All customized to fit your device structure.
Yes, our 500mAh battery supports 1C fast charging. It can reach 80% in 1 hour, with reliable thermal protection.
Our batteries last up to 500+ full cycles, maintaining over 80% of original capacity, ideal for daily consumer use.
We guarantee a ≥98.5% yield rate, with full IQC, FQC, and OQC inspection reports available per batch. We offer 100% full inspection before shipment.
Yes, samples are available. For serious B2B inquiries, we offer free standard samples and can ship within 2–3 days.
Standard lead time is 7–15 working days, depending on order quantity and customization. Urgent orders can be prioritized.
Absolutely. We offer full technical guidance, quality tracking, and replacement service for any verified batch issues. You can reach our team anytime.