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

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Mrs. Alice

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

브랜드 이름:	RESKY
모델 번호:	LP502040
MOQ:	100개
가격:	협상 가능
포장에 대한 세부 사항:	종이상자
지불 조건:	T/T, 서부 동맹

자세한 정보

제품 설명

평점 및 리뷰

자세한 정보

원래 장소:

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

모델 번호.:

LP502040

공칭 용량:

400mAh

사이클 수명:

500 사이클

UPS, DHL, FedEx, TNT, Air, Sea, Special Line

리드타임:

3-7Workdays

아, 몰렉스....

5*20*40mm

공급 능력:

50000pcs/일

강조하다:

502040 lithium polymer battery

3.7v rechargeable battery cell

400mAh flat li-ion battery

제품 설명

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

평점 및 리뷰

전체 등급

5.0

이 공급업체에 대한 50개의 리뷰를 기반으로 합니다.

등급 스냅샷

다음은 모든 평점의 분포입니다.

5 별

100%

4 별

3 별

2 별

1 별

모든 리뷰

Andrius

Lithuania Apr 16.2025

도움 이 될 것 입니다 (3000)

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

Maroun

France Aug 17.2023

도움 이 될 것 입니다 (7900)

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

SIRIEYS

France Jul 19.2023

도움 이 될 것 입니다 (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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