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3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices
3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices
3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices
3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices
Specifications
Brand Name :
RESKY
Model Number :
LP702040
Certification :
CE, RoHS, MSDS, Un38.3
Place of Origin :
China
MOQ :
100pcs
Price :
Negotiable
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
Description
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
3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices
3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices
3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices
3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices
3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices
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3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices

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Product Detail
Brand Name :
RESKY
Model Number :
LP702040
Certification :
CE, RoHS, MSDS, Un38.3
Place of Origin :
China
MOQ :
100pcs
Price :
Negotiable
Contact Supplier
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3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices
3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar Devices

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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