3.7V 45mAh Lithium Polymer Coin Cell Battery - 1.0×5.4mm Size with 300 Cycle Life for TWS Applications
3.7V lithium polymer coin cell battery designed for TWS (True Wireless Stereo) applications and other compact electronic devices. Available in multiple sizes including 1040, 1055, 1254, and 1054 configurations.
| Parameter | Specification |
|---|---|
| Battery Technology | Lithium Polymer (LiPo) |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 45mAh (at +20°C @0.2C discharge) |
| Discharge Cut-off Voltage | 2.7V |
| Charge Cut-off Voltage | 4.2V |
| Standard Charge Current | 0.2C |
| Rapid Charge Current | 1C |
| Standard Discharge Current | 0.2C |
| Max Discharge Current | 1C |
| Operating Temperature (Charging) | 0℃ ~ 55℃ |
| Operating Temperature (Discharging) | -20℃ ~ 65℃ |
| Storage Conditions | Temperature ≤ 30℃, Humidity ≤ 75%RH |
| Dimensions | 1.0 × 5.4mm |
| Weight | 0.8g |
- Enhanced safety with built-in PCM/PCB protection - withstands short circuit, perforation, and brutal testing
- Low self-discharge rate: less than 3% per month at room temperature
- Ultra-thin design with customizable thickness from 0.4mm to 8mm
- Wide operating temperature range: -20℃ to +60℃
- No voltage passivation or memory effect - ready to use after long storage
- High energy density: 356Wh/kg, 50% higher than steel-cased lithium batteries
- 300+ cycle life for extended product longevity
- True Wireless Stereo (TWS) earphones and headphones
- Communication devices: mobile phones, Bluetooth devices, walkie-talkies
- Information equipment: laptops, PDAs, portable printers
- Audio-visual equipment: digital cameras, camcorders, portable DVD players
- Portable electronics: MP3/MP4 players, portable DVDs
- RC planes, power tools, toys, and electric vehicles
Packaging Options: Tray bulk, Blister card, PVC shrink, Gift-Box, Nude packing, OEM packing
Lead Time: 3-20 working days for standard orders
ISO9001 quality system certified with Chinese military assembly line approvals. Fully equipped testing center ensures products meet military specifications.
Professional engineering team provides custom solutions with 15-day turnaround for new designs. PCM/PCB, wiring, and connectors can be added according to specific requirements.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.