Shenzhen Resky Electronics Co., Ltd.
                                                                                                           
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14 Years
Since 2012
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Lithium Polymer Battery Cell 802040 902040 802045 3.7V 650mAh Rechargeable Li-Polymer Batteries

Price Negotiable
Price: Negotiable
MOQ: 10pcs
Delivery Time: 7-10days
Brand: RESKY
Product Description
Lithium Polymer Battery Cell 802040 902040 802045 3.7V 650mAh Rechargeable Li-Polymer Batteries
Key Specifications
Attribute Value
Nominal Capacity 650mAh
Charging Current 0.2c
Continuous Discharging Current 0.5c
Max Discharging Current 1c
Weight 10g
Cycle Life 500 cycles
Warranty 12 months
Shipping UPS, DHL, FedEx, TNT, by Air, by Sea, Special Line
Connector Jst, Molex
Specification 8*20*40mm
Technical Details
Item Specification
Batteries 3.7v 650mah lipo battery
Charge voltage 4.2V
Nominal voltage 3.7V
Nominal capacity 650mAh 0.2C Discharge
Charge current Standard Charging: 0.5C
Rapid charge: 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
Dimension Length: 40±2mm
Width: 20±0.5mm
Thickness: 8±0.2mm
Drop Test Dropped from 1m twice onto concrete - no fire, no leakage
Cycle time ≥500 times
Applications
  • Smart devices: Fingerprint locks, cervical massagers, microphones with 500 cycle life and -10~60℃ operating range
  • Consumer electronics: Aromatherapy machines, beauty devices with lightweight (10×20×40mm) design and -10℃ startup
  • Industrial use: Medical detectors, scanning pens with ≤5% monthly self-discharge and stable long-term storage
Key Advantages
  • Safety: Gel electrolytes prevent leakage/combustion with IEC 62133-2 certification and multiple protection mechanisms
  • Lightweight: 20%-40% lighter than standard batteries with ultra-thin (
  • Performance: Some models support 2C fast charging with 1.2 hour extended battery life for drones/mobile devices
Product Images
Lithium Polymer Battery Cell 802040 3.7V 650mAh front view
Lithium Polymer Battery Cell side view showing thickness
Lithium Polymer Battery Cell with JST and Molex connectors
Lithium Polymer Battery Cell packaging and labeling
Lithium Polymer Battery Cell dimension diagram with measurements

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

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