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Flat Lithium Battery Cell 502040 3.7v 400mAh Rechargeable Li-ion Polymer Battery Packs

Flat Lithium Battery Cell 502040 3.7v 400mAh Rechargeable Li-ion Polymer Battery Packs

ब्रांड नाम: RESKY
मॉडल संख्या: एलपी502040
एमओक्यू: 100 पीसी
कीमत: विनिमय योग्य
पैकेजिंग विवरण: कागज बॉक्स
भुगतान की शर्तें: टी/टी, वेस्टर्न यूनियन
विस्तृत जानकारी
उत्पत्ति के प्लेस:
चीन
प्रमाणन:
MSDS, Un38.3,CE, ROHS, REACH, IEC62133 ect
प्रतिरूप संख्या।:
एलपी502040
नाममात्र क्षमता:
400mAh
वज़न:
8g
MOQ:
10 पीसी
चक्र जीवन:
500 साइकिल
गारंटी:
12 महीने
शिपिंग:
यूपीएस, डीएचएल, फेडेक्स, टीएनटी, हवा द्वारा, समुद्र द्वारा, विशेष लाइन
समय सीमा:
3-7 कार्यदिवस
योजक:
जेएसटी, मोलेक्स....
विनिर्देश:
5*20*40मिमी
आपूर्ति की क्षमता:
50000PCS/दिन
प्रमुखता देना:

502040 lithium polymer battery

,

3.7v rechargeable battery cell

,

400mAh flat li-ion battery

उत्पाद का वर्णन
502040 3.7V 400mAh Rechargeable Li-ion Polymer Battery
High-performance 3.7V 400mAh 1.48Wh rechargeable Li-polymer battery cell designed for compact electronic devices requiring reliable power in limited space.
Technical Specifications
Battery Type 3.7V 400mAh Li-polymer
Charge Voltage 4.2V
Nominal Voltage 3.7V
Nominal Capacity 400mAh (0.2C Discharge)
Charge Current Standard: 0.5C (200mA)
Rapid: 1.0C (400mA)
Charging Method 0.5C CC to 4.2V, then CV until current ≤0.05C
Charging Time Standard: ~2.75 hours
Rapid: ~2 hours
Max Charge Current 1.0C (400mA)
Max Discharge Current 1.0C (400mA)
Discharge Cut-off Voltage 2.75V ±0.25V (0.2C)
Operating Temperature Charging: 0°C to 45°C
Discharging: 0°C to 45°C
Storage: -10°C to 45°C
Dimensions Length: 40±2mm
Width: 20±0.5mm
Thickness: 5±0.2mm
Cycle Life ≥500 cycles
Key Advantages
  • Miniaturization and Lightweighting: Ideal for space- and weight-sensitive applications like smart wearable devices and portable electronics
  • Design Flexibility: Can be manufactured in any shape and thickness with flexibility (maximum bending angle approximately 90 degrees)
  • Enhanced Safety: Gel electrolyte reduces leakage and explosion risks; internal problems indicated by bulging packaging
  • Capacity and Voltage Advantages: Higher capacity for same size compared to traditional lithium-ion batteries with improved system efficiency
  • Environmental Adaptability: Wide operating temperature range suitable for extreme environmental conditions
Structural & Safety Features
  • Electrode System: NCM/NCA ternary cathode material with graphite anode
  • Packaging: Aluminum-plastic composite film soft-pack with flexibility (bending radius ≥5mm)
  • Electrolyte: Polymer gel electrolyte with superior thermal stability and no leakage risk
  • Safety Protection: Built-in PCM module for overcharge, over-discharge, overcurrent, and short circuit protection
  • Drop Test Certified: Withstands 1-meter drops onto concrete without fire or leakage
Primary Applications
Smart Wearables & Children's Products
  • Entry-level smart bracelets and watches (1-3 day battery life)
  • Children's phone watches, smart toy watches, GPS bracelets
  • Mini heart rate monitors, pedometers, cycling speed sensors
Medical & Health Equipment
  • Portable diagnostic devices: electronic thermometers, oximeters, blood pressure monitors
  • Rehabilitation aids: mini massagers, physiotherapy devices, hearing aids
IoT & Smart Home Devices
  • Low-power sensors: temperature/humidity, door/window, smoke detectors
  • Small smart home devices: smart door locks, mini cameras, wireless remotes
Product Images
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सभी समीक्षाएँ

A
Andrius
Lithuania Apr 16.2025
High quality, working well on our portable medical devices, Resky is a reliable supplier for lithium battery
M
Maroun
France Aug 17.2023
We cooperated several lipo battery cell models, they are working very well. Recommened.
S
SIRIEYS
France Jul 19.2023
After many discharging/charging cycles of the samples LP604070 2000mah you sent…..we are satisfied !