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Home > Products >
Lithium Polymer Battery Pack
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Power Batteries 702030 3.7V 400mAh Rechargeable Polymer Lithium Battery Cells For Wireless Headphone
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Lithium Polymer Battery Cell

RC Lithium Battery

Li-Ion Battery Pack

Lithium Polymer Battery Pack

Heated Lithium Battery

Electric Bike Battery

RC Balance Charger

Rechargeable Battery Charger

RC Accessories
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Power Batteries 702030 3.7V 400mAh Rechargeable Polymer Lithium Battery Cells For Wireless Headphone

Brand Name: RESKY
Model Number: LP702030
MOQ: 100pcs
Price: Negotiable
Packaging Details: Paper box
Payment Terms: T/T,Western Union
Detail Information
Product Description
Ratings & Reviews
Detail Information
Place of Origin:
China
Certification:
CE, RoHS, MSDS, Un38.3
Document:
LP502030 250mAh cell specif...on.pdf
Model NO.:
LP702030
Capacity:
400mAh
MOQ:
10PCS
Electrolyte:
Li(Nicomn)O2
Cycle Life:
500cycles
Warranty:
12months
Shipping:
UPS, DHL, FedEx, TNT, By Air, By Sea, Special Line
Lead Time:
Within 5-7Workdays
Connector:
Jst, Molex....
Specification:
7*20*30mm
Supply Ability:
50000pcs/dat
Highlight:

702030 rechargeable lithium battery

,

3.7V 400mAh polymer battery

,

wireless headphone lithium battery

Product Description
Power Batteries 702030 3.7V 400mAh Rechargeable Polymer Lithium Battery
High-performance rechargeable polymer lithium battery cells designed specifically for wireless headphones and other compact electronic devices.
Technical Specifications
Parameter Specification
Battery Type 3.7V 400mAh LiPo Battery
Charge Voltage 4.2V
Nominal Voltage 3.7V
Nominal Capacity 400mAh @ 0.2C Discharge
Charge Current Standard: 0.2C, Rapid: 1.0C
Standard Charging Method 0.5C CC charge to 4.2V, then CV charge at 4.2V till current declines to ≤0.05C
Charging Time Standard: 2.75 hours, Rapid: 2 hours
Max Charge Current 0.5C
Max Discharge Current 1.0C
Discharge Cut-off Voltage 2.5V±0.25V (0.2C)
Operating Temperature Charging: 0°C ~45°C, Discharging: 0°C ~45°C
Storage Temperature -10°C ~ +45°C
Dimensions Length: 30±0.5mm, Width: 20±0.5mm, Thickness: 7±0.2mm
Drop Test Dropped from 1 meter twice onto concrete with no fire or leakage
Cycle Life ≥800 cycles
Key Features
  • Voltage & Capacity: 3.7V nominal voltage with 400mAh capacity for low-power electronic devices
  • Compact Design: Cell size 7.0×20.0×30.5mm, lightweight and easy to integrate into compact devices
  • Efficient Charging: Charge cut-off voltage 4.2V, standard charging current 0.5C (200mA)
  • High Performance: High energy density, low internal resistance, cycle life greater than 300 cycles
  • Wide Temperature Range: Operating temperature range: charging 0~45℃, discharging -20~60℃
  • Safety Certified: Polymer electrolyte with explosion-proof design certification
Primary Applications
Consumer Electronics
Bluetooth headsets, wireless mice, smartwatches, e-readers, digital cameras, and tablets
Smart Home & Security Equipment
Smart locks, video doorbells, wireless cameras, alarms, LED sensor lights, and nightlights
Small Power Tools & Outdoor Equipment
Electric screwdrivers, handheld fans, camping lights, and electric air pumps
Medical & Beauty Instruments
Blood glucose meters, blood pressure monitors, beauty devices, facial cleansing brushes, and personal care products
Product Images
Power Batteries 702030 3.7V 400mAh Rechargeable Polymer Lithium Battery Cells For Wireless Headphone 0 Power Batteries 702030 3.7V 400mAh Rechargeable Polymer Lithium Battery Cells For Wireless Headphone 1 Power Batteries 702030 3.7V 400mAh Rechargeable Polymer Lithium Battery Cells For Wireless Headphone 2 Power Batteries 702030 3.7V 400mAh Rechargeable Polymer Lithium Battery Cells For Wireless Headphone 3 Power Batteries 702030 3.7V 400mAh Rechargeable Polymer Lithium Battery Cells For Wireless Headphone 4
Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

M
Mofak
United Kingdom Dec 5.2025
Helpful (1500)
Good quality! Easy communication, fast response, fast delivery, good supplier! Recommend.
Review Image
H
Hanna
Lithuania Oct 17.2023
Helpful (7800)
We cooperated with RESKY more than 10years, good communication, fast reponse for our any requirements. Reliable supplier.
M
Maroun
France Aug 17.2023
Helpful (7900)
We cooperated several lipo battery cell models, they are working very well. Recommened.
Review Image
Tags: 

Li Polymer Battery Pack  

Custom Lipo Battery Pack  

Lipo Battery Pack

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