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OEM ODM PCM protected lipo battery cell 443441 3.7v 650mAh rechargeable power batteries

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Rechargeable flat lithium battery cell 443441 3.7v 650mAh power lipo batteries for bluetooth audio
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Rechargeable flat lithium battery cell 443441 3.7v 650mAh power lipo batteries for bluetooth audio

Model:LP443441

Voltage:3.7v

Capacity:650mAh

Dimension:4.4*34*41mm

MOQ:100pcs

Delivery time:7-10workdays

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Product Specifications
 
Item Specification
Battery Type 3.7V 650mAh LiPo Battery
Charge Voltage 4.2V
Nominal Voltage 3.7V
Nominal Capacity 650mAh @ 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: 41±2mm, Width: 34±0.5mm, Thickness: 4.4±0.2mm
Drop Test Dropped from 1m twice onto concrete – no fire, no leakage
Cycle Life ≥500 times
 
Main Advantages
 
Stable 3.7V Output & 650mAh Real Capacity
 
Provides consistent voltage output and sufficient 650mAh capacity for longer runtime, stable discharge without voltage drop, ensuring smooth device performance.
 
High Safety with Multi-Protection
 
Built-in PCM protection board supports over-charge, over-discharge, over-current and short-circuit protection. Aluminum-plastic film soft package eliminates leakage risk.
 
Long Cycle Life & Low Self-Discharge
 
Cycle life exceeds 500 times with capacity retention above 80%. Low self-discharge rate (less than 3% per month) maintains power during long-term storage, reducing replacement frequency.
 
No Memory Effect & Flexible Charging
 
Support charging at any power level without memory effect. Compatible with standard 4.2V charging, easy to use and maintain for mass production.
 
Wide Temperature Compatibility
 
Operating temperature: charging 0~45℃, discharging -20~60℃. Stable performance in harsh environments, suitable for indoor and outdoor applications.
 
Consistent Quality & Customizable
 
Stable cell consistency for mass production. Support customization on wires, connectors, labels and protection solutions to meet different device requirements.
 
Applications
  • Smart Wearables: smart watches, fitness trackers, health monitors
  • Portable Audio: Bluetooth earphones, mini speakers, headset charging cases
  • Personal Care: electric toothbrushes, facial tools, mini massagers
  • Smart Devices: remote controls, electronic toys, LED lights, tracking devices
  • Home & Security: smart doorbells, wireless sensors, small surveillance gadgets
  • Industrial & Medical: portable testers, small medical devices, handheld instruments
Quality Assurance
  • A-Grade Battery Cells: High-quality materials, sufficient capacity, long battery life, safe and non-explosive
  • High-Performance Protection Board: Stable voltage output, prevents overcharging, over-discharging, and short circuit
  • International Standard Lead Wire: High-quality wire with strong conductivity, supports high-probability discharge
  • Wide Nickel Tabs: Excellent thermal and electrical conductivity, reduces heat generation, ensures stable current output
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