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Shenzhen Resky Electronics Co., Ltd.

  • China,Shenzhen ,Guangdong
  • Verified Supplier
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China 3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar
China 3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar

  1. China 3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar
  2. China 3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar

3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar

  1. MOQ: 100pcs
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms T/T,Western Union
Supply Ability 50000pcs/day
Delivery Time 7-10days
Packaging Details Standard export package
Nominal Capacity 500mAh
Charging Current 0.2c
Continuous Discharging Current 0.5c
Max Discharging Current 1c
Weight 7g
Cycle Life 500cycles
Warranty 12months
Shipping UPS, DHL, FedEx, TNT, by Air, by Sea, Special Line
Specification 7*20*40mm
HS Code 8507600090
Brand Name RESKY
Model Number LP702040
Certification CE, RoHS, MSDS, Un38.3
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T,Western Union Supply Ability 50000pcs/day
Delivery Time 7-10days Packaging Details Standard export package
Nominal Capacity 500mAh Charging Current 0.2c
Continuous Discharging Current 0.5c Max Discharging Current 1c
Weight 7g Cycle Life 500cycles
Warranty 12months Shipping UPS, DHL, FedEx, TNT, by Air, by Sea, Special Line
Specification 7*20*40mm HS Code 8507600090
Brand Name RESKY Model Number LP702040
Certification CE, RoHS, MSDS, Un38.3 Place of Origin China
High Light 3.7V 500mAh lithium polymer battery702040 LiPo battery for mini fansrechargeable lithium battery for solar devices
Power Lipo Battery Cell 702040 3.7V 500mAh Solar Lithium Ion Polymer Batteries
High-performance lithium-ion polymer battery cell designed for various low-power applications including portable mini fans and dog training devices.
Product Specifications
Nominal Capacity 500mAh
Charging Current 0.2c
Continuous Discharging Current 0.5c
Max Discharging Current 1c
Weight 7g
Cycle Life 500 cycles
Warranty 12 months
Shipping UPS, DHL, FedEx, TNT, by Air, by Sea, Special Line
Specification 7×20×40mm
HS Code 8507600090
Technical Details
No. Items Specifications
1 Batteries 3.7V 500mAh LiPo battery
2 Charge voltage 4.2V
3 Nominal voltage 3.7V
4 Nominal capacity 500mAh 0.2C Discharge
5 Charge current Standard Charging: 0.5C
Rapid charge: 1.0C
6 Standard Charging method 0.5C CC charge to 4.2V, then CV charge till charge current decline to ≤0.05C
7 Charging time Standard Charging: 2.75 hours (Ref.)
Rapid charge: 2 hours (Ref.)
8 Max. charge current 1.0C
9 Max. discharge current 1.0C
10 Discharge cut-off voltage 2.75V (0.2C)
11 Operating temperature Charging: 0°C ~ 45°C
Discharging: 0°C ~ 45°C
12 Storage temperature -10°C ~ +45°C
13 Dimension Length: 40±2mm (not including tabs)
Width: 20±0.5mm
Thickness: 7±0.2mm
14 Drop Test The cell is to be dropped from a height of meter twice onto concrete ground. No fire, no leakage
15 Cycle time ≥500 times
Advantages of 3.7V Li-Polymer vs 3.2V LiFePO4 Batteries
  • Higher nominal voltage: 3.7V lithium polymer provides higher working voltage than 3.2V LiFePO4, delivering stronger power output and better performance in small electronics.
  • Higher energy density in same size: Traditional 3.7V li-polymer offers higher capacity and energy density in the same dimensions, supporting longer runtime for compact devices.
  • Wider application in consumer electronics: Matches the charging and discharging logic of most small smart devices, with better compatibility and simpler circuit design.
  • More mature mass production: Stable supply chain, lower cost, and higher consistency for mass production compared to LiFePO4 polymer in small-capacity sizes.
  • Better low-temperature discharge performance: Performs more stably in cold environments than most 3.2V LiFePO4 batteries, making it suitable for outdoor and portable devices.
Applications
Smart Wearable Devices:
smart bracelets, smart glasses, VR all-in-one machines, adult products, etc.
Consumer Electronics:
Bluetooth headsets, remote controls, mini fans, Bluetooth speakers, selfie sticks, MP3/MP4 players
Home and Personal Care Appliances:
smart masks, beauty devices, teeth whitening devices, neck massagers, neck fans, eye massagers
Security and Positioning Equipment:
alarms, fingerprint locks, child locators, thermometers, GPS trackers
Industrial and Professional Instruments:
portable printers, laser levels, walkie-talkies, PDAs, medical instruments, hearing aids, detectors
Other Low-Power Devices:
aroma diffusers, recorders, scooters, electric shavers, karaoke microphones, electronic navigation devices, etc.
Product Images

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

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  • 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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