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

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

ブランド名:	RESKY
モデル番号:	LP502040
MOQ:	100個
価格:	交渉可能
パッケージの詳細:	紙箱
支払条件:	T/T、ウェスタンユニオン

評価とレビュー

起源の場所:

MSDS, Un38.3,CE, ROHS, REACH, IEC62133 ect

LP502040

公称容量:

400mah

サイクルライフ:

500サイクル

ups、dhl、fedex、tnt、air by Sea、Special Line

リードタイム:

3-7Workdays

コネクタ:

モレックス...

5*20*40mm

供給の能力:

50000個/日

ハイライト:

502040 lithium polymer battery

3.7v rechargeable battery cell

400mAh flat li-ion battery

製品説明

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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総合評価

5.0

このサプライヤーに対する50件のレビューに基づいています

すべてのレビュー

Andrius

Lithuania Apr 16.2025

役に立つ (3000)

High quality, working well on our portable medical devices, Resky is a reliable supplier for lithium battery

Maroun

France Aug 17.2023

役に立つ (7900)

We cooperated several lipo battery cell models, they are working very well. Recommened.

SIRIEYS

France Jul 19.2023

役に立つ (1w+)

After many discharging/charging cycles of the samples LP604070 2000mah you sent…..we are satisfied !

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

502040 lithium polymer battery

3.7v rechargeable battery cell

400mAh flat li-ion battery

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