3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices
Price:
Negotiable
MOQ:
100pcs
Delivery Time:
7-10days
Brand:
RESKY
Product Description
Power Lipo Battery Cell 702040 3.7V 500mAh Solar Lithium Ion Polymer Batteries
High-performance lithium-ion polymer battery cell designed for various low-power applications including portable mini fans and dog training devices.
Product Specifications
| Nominal Capacity | 500mAh |
| Charging Current | 0.2c |
| Continuous Discharging Current | 0.5c |
| Max Discharging Current | 1c |
| Weight | 7g |
| Cycle Life | 500 cycles |
| Warranty | 12 months |
| Shipping | UPS, DHL, FedEx, TNT, by Air, by Sea, Special Line |
| Specification | 7×20×40mm |
| HS Code | 8507600090 |
Technical Details
| No. | Items | Specifications |
|---|---|---|
| 1 | Batteries | 3.7V 500mAh LiPo battery |
| 2 | Charge voltage | 4.2V |
| 3 | Nominal voltage | 3.7V |
| 4 | Nominal capacity | 500mAh 0.2C Discharge |
| 5 | Charge current | Standard Charging: 0.5C Rapid charge: 1.0C |
| 6 | Standard Charging method | 0.5C CC charge to 4.2V, then CV charge till charge current decline to ≤0.05C |
| 7 | Charging time | Standard Charging: 2.75 hours (Ref.) Rapid charge: 2 hours (Ref.) |
| 8 | Max. charge current | 1.0C |
| 9 | Max. discharge current | 1.0C |
| 10 | Discharge cut-off voltage | 2.75V (0.2C) |
| 11 | Operating temperature | Charging: 0°C ~ 45°C Discharging: 0°C ~ 45°C |
| 12 | Storage temperature | -10°C ~ +45°C |
| 13 | Dimension | Length: 40±2mm (not including tabs) Width: 20±0.5mm Thickness: 7±0.2mm |
| 14 | Drop Test | The cell is to be dropped from a height of meter twice onto concrete ground. No fire, no leakage |
| 15 | Cycle time | ≥500 times |
Advantages of 3.7V Li-Polymer 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 in same size: Traditional 3.7V li-polymer offers higher capacity and energy density in the same dimensions, supporting longer runtime for compact devices.
- Wider application in consumer electronics: Matches the charging and discharging logic of most small smart devices, with better compatibility and simpler circuit design.
- More 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 discharge performance: Performs more stably in cold environments than most 3.2V LiFePO4 batteries, making it suitable for outdoor and portable devices.
Applications
Smart Wearable Devices:
smart bracelets, smart glasses, VR all-in-one machines, adult products, etc.
Consumer Electronics:
Bluetooth headsets, remote controls, mini fans, Bluetooth speakers, selfie sticks, MP3/MP4 players
Home and Personal Care Appliances:
smart masks, beauty devices, teeth whitening devices, neck massagers, neck fans, eye massagers
Security and Positioning Equipment:
alarms, fingerprint locks, child locators, thermometers, GPS trackers
Industrial and Professional Instruments:
portable printers, laser levels, walkie-talkies, PDAs, medical instruments, hearing aids, detectors
Other Low-Power Devices:
aroma diffusers, recorders, scooters, electric shavers, karaoke microphones, electronic navigation devices, etc.
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