Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You!
Your requirement has been sent. we will contact you quickly!
{"title":"3.7V 500mAh 702040 Lithium Polymer Battery for Portable Mini Fans and Solar","imgUrl":"https:\/\/img.chinax.com\/nimg\/49\/8f\/a819fc4c48d4111f8610af56fbe3-200x200-1\/3_7v_500mah_702040_lithium_polymer_battery_for_portable_mini_fans_and_solar.jpg","attrs":{"Brand Name":"RESKY","Model Number":"LP702040","Certification":"CE, RoHS, MSDS, Un38.3","Place of Origin":"China"}}
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
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 ...