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China factory - Shenzhen Resky Electronics Co., Ltd.

Shenzhen Resky Electronics Co., Ltd.

  • China,Shenzhen ,Guangdong
  • Verified Supplier
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  2. Lithium Polymer Battery Cell>
  3. OEM PCM Protected 3.7V 650mAh Lithium Polymer Battery for Smart Watches and
China OEM PCM Protected 3.7V 650mAh Lithium Polymer Battery for Smart Watches and
China OEM PCM Protected 3.7V 650mAh Lithium Polymer Battery for Smart Watches and

  1. China OEM PCM Protected 3.7V 650mAh Lithium Polymer Battery for Smart Watches and
  2. China OEM PCM Protected 3.7V 650mAh Lithium Polymer Battery for Smart Watches and

OEM PCM Protected 3.7V 650mAh Lithium Polymer Battery for Smart Watches and

  1. MOQ： 100pcs
  2. Price： Negotiable
  3. Get Latest Price
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
Brand Name RESKY
Model Number LP443441
Certification CE, RoHS, MSDS, Un38.3
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

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
Brand Name RESKY Model Number LP443441
Certification CE, RoHS, MSDS, Un38.3 Place of Origin China
High Light 3.7V lithium polymer battery ，650mAh smart watch battery ，OEM PCM protected battery
OEM PCM Protected Lithium Cell 443441 3.7V 650mAh Rechargeable Lithium Polymer Battery Cells
High-performance LiPo battery designed specifically for smart watches 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
Battery Cell Measurements
Battery cell measurement diagram Battery cell dimensional specifications
Voltage Comparison: 3.7V vs 3.8V Batteries
3.7V Lithium Battery
Nominal discharge platform voltage is 3.7V, full charge voltage typically 4.2V, discharge cutoff voltage generally 3.0V.
3.8V Lithium Battery
Nominal discharge platform voltage is 3.8V, with some models reaching full charge voltage of 4.35V. Discharge cutoff voltage mostly set at 3.0V or slightly higher.
Energy Density
3.8V batteries typically use advanced cathode materials, allowing them to store more energy in the same volume or weight, resulting in higher energy density.
Cost & Safety
3.8V batteries are more expensive due to complex materials and processes. 3.7V batteries are technologically mature with lower costs and easier safety assurance.
Applications
  • Consumer Electronics: Bluetooth speakers, headphones, smart bracelets, GPS trackers, portable medical devices
  • Smart Home: Smart door locks, sensors, cameras, remote controls
  • Electric Toys/Small Appliances: Electric toothbrushes, shavers, robot vacuums, handheld fans
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
Battery Cell with PCM Measurements
Battery cell with PCM measurement diagram Battery cell with PCM dimensional specifications Battery cell with PCM detailed view Battery cell with PCM technical drawing

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Distributor/Wholesaler

  • Year Established:

    2012

  • Total Annual:

    500000-1000000

  • Employee Number:

    20~50

  • Ecer Certification：

    Verified Supplier

Shenzhen Resky Electronics Co., Ltd is a company specialized in manufacturing, sales and marketing of rechargeable lithium battery and related battery packs.Our lithium battery cells and packs products are widely used in portable mobile devices such as Bluetooth headsets, MP3 players, PDAs, Digital ... Shenzhen Resky Electronics Co., Ltd is a company specialized in manufacturing, sales and marketing of rechargeable lithium battery and related battery packs.Our lithium battery cells and packs products are widely used in portable mobile devices such as Bluetooth headsets, MP3 players, PDAs, Digital ...

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Get in touch with us

  • Reach Us
  • Shenzhen Resky Electronics Co., Ltd.
  • Room 1405-1, Building 3B, Huaqiang Idea Park, Guangming Street, Guangming District, Shenzhen, Guangdong Province,China
  • https://www.lithiumbatteriescell.com/

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