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Lithium Ion Battery Cell 3.7V 650mAh Rechargeable Li-polymer Battery for Smart Doorbells
Lithium Ion Battery Cell 3.7V 650mAh Rechargeable Li-polymer Battery for Smart Doorbells
Lithium Ion Battery Cell 3.7V 650mAh Rechargeable Li-polymer Battery for Smart Doorbells
Lithium Ion Battery Cell 3.7V 650mAh Rechargeable Li-polymer Battery for Smart Doorbells
Specifications
Brand Name :
RESKY
Model Number :
LP443441
Certification :
CE, RoHS, MSDS, Un38.3
Place of Origin :
China
MOQ :
100pcs
Price :
Negotiable
Payment Terms :
Western Union,T/T
Supply Ability :
50000pcs/day
Delivery Time :
7-10days
Packaging Details :
Paper box
Nominal Capacity :
650mAh
Charging Current :
0.2c
Continuous Discharging Current :
0.5c
Max Discharging Current :
1c
Weight :
10g
Cycle Life :
500cycles
Warranty :
12months
Shipping :
UPS, DHL, FedEx, TNT, by Air, by Sea, Special Line
Connector :
Jst, Molex....
Specification :
4.4*34*41mm
Description
Lithium Ion Battery Cell 443441 3.7V 650mAh Rechargeable Li-polymer Battery
High-performance LiPo battery designed specifically for smart doorbells and compact electronic devices.
Product 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 4.4×34×41mm
Technical 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
Battery measurement:

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
Product Images
Lithium Ion Battery Cell 3.7V 650mAh Rechargeable Li-polymer Battery for Smart Doorbells Lithium Ion Battery Cell 3.7V 650mAh Rechargeable Li-polymer Battery for Smart Doorbells Lithium Ion Battery Cell 3.7V 650mAh Rechargeable Li-polymer Battery for Smart Doorbells Lithium Ion Battery Cell 3.7V 650mAh Rechargeable Li-polymer Battery for Smart Doorbells Lithium Ion Battery Cell 3.7V 650mAh Rechargeable Li-polymer Battery for Smart Doorbells
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Lithium Ion Battery Cell 3.7V 650mAh Rechargeable Li-polymer Battery for Smart Doorbells

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Product Detail
Brand Name :
RESKY
Model Number :
LP443441
Certification :
CE, RoHS, MSDS, Un38.3
Place of Origin :
China
MOQ :
100pcs
Price :
Negotiable
Contact Supplier
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Lithium Ion Battery Cell 3.7V 650mAh Rechargeable Li-polymer Battery for Smart Doorbells
Lithium Ion Battery Cell 3.7V 650mAh Rechargeable Li-polymer Battery for Smart Doorbells

Shenzhen Resky Electronics Co., Ltd.

Verified Supplier
2 Years
guangdong, shenzhen
Since 2012
Business Type :
Manufacturer, Distributor/Wholesaler
Main Products :
Lithium Polymer Battery Cell, RC Lithium Battery, Li-Ion Battery Pack
Total Annual :
500000-1000000
Employee Number :
20~50
Certification Level :
Verified Supplier
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