China High Quality 3.7V Lithium Polymer Battery Supplier

Vcell Power, a professional manufacturer in China, officially supplies prismatic 3.7V Lithium Polymer Battery to the market after developing cylindrical lithium-ion cells, and currently own thousands of mature Li-polymer battery models including 103450, 502030, 652253 and mainstream finished specifications like 3.7V 200mAh 402030 Rechargeable Li Polymer Battery, 3.7V 2000mAh 103450 Li Polymer Battery, etc.

All of our 3.7V Lithium Polymer Battery adopt high-molecular-weight polymer electrolyte, featuring greater flexibility, lighter weight, faster charging speed and lower self-discharge compared with traditional lithium-ion batteries, with a stable cycle life of over 700 cycles.

What Are The Core Advantages ?

1. Superior Material & Stable Electrical Performance

- Premium Polymer Material: Adopts high-molecular polymer electrolyte, zero leakage, better airtightness and higher safety than liquid lithium-ion batteries.

- Long Cycle Life: Supports over 700 charge-discharge cycles with stable capacity output, lowering device replacement costs.

- Low Self-discharge & Fast Charging: Maintains long standby time and supports fast charging to improve device efficiency.

- High Energy Density & Lightweight: Thin, light and high-capacity design, matching miniaturized and portable consumer electronics trends.

2. Diversified Shape & Full-size Customization Flexibility

- Mass Standard Models: Ready stock models including 402030 (200mAh), 103450 (2000mAh), 502030, 652253 for mainstream electronic devices.

- Multi-shape Customization: Supports square, rectangular, round and curved special shapes to fit irregular device internal space.

- Full-parameter Customization: Customizable size, capacity, interface, BMS current parameters to match exclusive device power demands.

3. Built-in Safety Protection System

- Built-in standard BMS module, preventing over-voltage, under-voltage, over-current and short circuit damage.

- Optional intelligent communication function for real-time battery monitoring on high-end equipment.

What Strict Production Processes Ensure The Quality?

We adopt full automatic standardized production procedures. Every 3.7V Lithium Polymer Battery is strictly processed and tested to ensure consistent batch quality.

1. Pre-production Raw Material Processing

- Material Mixing: Precise proportioning via vacuum mixers for uniform material composition.

- Coating & Pressing: Automated electrode coating and calendering for stable energy density.

2. Mid-production Forming & Processing

- Sheet Cutting & Rolling: Precision slitting and secondary rolling for unified battery size.

- Injection & Sealing: Standard electrolyte injection and sealing to eliminate leakage risk.

- Baking Treatment: Moisture removal to avoid battery bulging and performance decay.

3. Post-production Activation & Testing

- Formation & Aging: Battery activation and long-term aging for stable chemical properties.

- OCV Testing & Sorting: High-precision parameter testing and automatic defective product screening.

- Welding & Pack Aging: Precision terminal welding and secondary aging for finished packs.

- Final Packaging: Dust-proof and moisture-proof packaging for safe transportation.

What Application Scenarios Are Vcell Power Battery Suitable For?

Our 3.7V Lithium Polymer Battery is widely adopted for compact and portable consumer & intelligent electronic devices.

1. Smart Wearable Devices

Ideal for smart watches, Bluetooth headsets and smart bracelets. Ultra-thin custom size fits mini wearable design with low power consumption.

2. Portable Consumer Electronics

Suitable for handheld beauty devices, portable fans and mini portable electronics, delivering high endurance output.

3. IoT & Intelligent Home Devices

Perfect for IoT sensors, wireless modules and smart home controllers, supporting long-term low-power stable operation.

4. Mini Medical & Testing Equipment

Applicable for portable medical detectors and handheld testing instruments, meeting high safety power supply standards.

5. Small Unmanned & Intelligent Devices

Supplies stable power of 3.7V Lithium Polymer Battery for small drones and miniature intelligent robots for short-duration operation.

Frequently Asked Questions

1. What safety protection does the battery have?

Built-in standard BMS provides over-voltage, under-voltage, over-current and short-circuit protection. Optional communication function supports intelligent battery monitoring.

2. Is custom size and capacity available?

Yes. We support custom size, shape, capacity and discharge current. Square, rectangular, curved and special-shaped batteries are all available.

3. What certifications do your batteries have?

All batteries pass UL, CE, ROHS, UN38.3, IEC62133, CB, BIS, Reach, MSDS and DG certification, meeting global market entry standards.

4. What devices fit 3.7V  Battery?

Compatible with smart wearables, Bluetooth devices, beauty equipment, IoT sensors, portable medical instruments and small intelligent devices.

Why Choose Vcell Power As Your Long-term Supplier?

Vcell Power is a professional  Battery manufacturer with 20+ years experience. We own independent R&D, full automated production and complete certification system.

We supply thousands of standard battery models and full custom solutions. Multi-base factories ensure stable mass delivery and global market compliance.

Vcell Power provides reliable standard and customized 3.7V Lithium Polymer Battery for global electronic manufacturers. Welcome for inquiry and cooperation.