3.7V 850mAh Lithium Polymer Battery Rechargeable LiPo for Bluetooth Headsets
Price:
Negotiable
MOQ:
100pcs
Delivery Time:
7-10days
Brand:
RESKY
Product Description
Factory 603443 3.7V 850mAh Lithium Polymer Battery
High-performance rechargeable lithium polymer battery designed for Bluetooth headsets and various small electronic devices.
Technical Specifications
| Battery Type | 3.7V 850mAh LiPo Battery |
|---|---|
| Charge Voltage | 4.2V |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 850mAh (0.2C Discharge) |
| Charge Current | Standard: 0.5C Rapid: 1.0C |
| Standard Charging Method | 0.5C CC charge to 4.2V, then CV charge till current ≤0.05C |
| Charging Time | Standard: 2.75 hours Rapid: 2 hours |
| Max. Charge Current | 1.0C |
| Max. Discharge Current | 1.0C |
| Discharge Cut-off Voltage | 2.75V (0.2C) |
| Operating Temperature | Charging: 0°C ~ 45°C Discharging: 0°C ~ 45°C |
| Storage Temperature | -10°C ~ +45°C |
| Dimensions | Length: 43±2mm Width: 34±0.5mm Thickness: 6±0.2mm |
| Drop Test | 1m drop onto concrete twice - no fire, no leakage |
| Cycle Life | ≥500 cycles |
Advantages vs 3.2V LiFePO4 Batteries
- Higher Nominal Voltage: 3.7V lithium polymer provides higher working voltage than 3.2V LiFePO4, delivering stronger power output and better performance in small electronics.
- Higher Energy Density: Traditional 3.7V li-polymer offers higher capacity and energy density in the same dimensions, supporting longer runtime for compact devices.
- Wider Application Compatibility: Matches the charging and discharging logic of most small smart devices, with better compatibility and simpler circuit design.
- Mature Mass Production: Stable supply chain, lower cost, and higher consistency for mass production compared to LiFePO4 polymer in small-capacity sizes.
- Better Low-Temperature Performance: Performs more stably in cold environments than most 3.2V LiFePO4 batteries, making it suitable for outdoor and portable devices.
Applications
Bluetooth Devices: Speakers, headsets, remote controls
Beauty & Personal Care: Facial brushes, beauty devices, hydrating devices
Personal Care Appliances: Electric toothbrushes, shavers, hair clippers
Smart Wearable & Health: Smart locks, monitors, baby monitors
Entertainment & Office: MP3/MP4 players, portable projectors, wireless mice
Lighting & Outdoor: Nightlights, camping lights, fishing lights, mini power banks
Pet Equipment: Dog trainers, pet trackers
Advantages of Lithium Polymer Batteries
- Flexible shape customization
- Lightweight & slim profile
- High safety with soft pouch structure
- Low self-discharge rate
- Long cycle life
- No memory effect
- Stable discharge performance
- Suitable for miniaturized smart devices
- Easy to integrate with wires & connectors
- Full certifications available: IEC62133, UN38.3, CE, RoHS
Product Images
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Resky Electronics Co., Ltd.
Location
Room 1405-1, Building 3B, Huaqiang Idea Park, Guangming Street, Guangming District, Shenzhen, Guangdong Province,China
Contact Person
Alice