products details

Home > Products >

Lithium Polymer Battery Cell

Lithium Ion Cell 402050 3.7V 400mAh 1.48wh Rechargeable Li-polymer Lipo Battery Cells

All Category

RC Accessories

Mrs. Alice

alice@szresky.com

0086 13530058480

0086 13530058480

Contact Now

Lithium Ion Cell 402050 3.7V 400mAh 1.48wh Rechargeable Li-polymer Lipo Battery Cells

Brand Name:	RESKY
Model Number:	LP402050
MOQ:	100pcs
Price:	Negotiable
Packaging Details:	Paper box
Payment Terms:	T/T,Western Union

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

MSDS, Un38.3

Model NO.:

LP402050

Nominal Capacity:

400mAh

Weight:

10PCS

Cycle Life:

500cycles

Warranty:

12months

Shipping:

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

Lead Time:

3-7workdays

Connector:

Jst, Molex....

Specification:

4*20*50mm

Supply Ability:

50000pcs/day

Highlight:

402050 lithium ion battery cell

3.7V rechargeable lipo battery

400mAh lithium polymer cell

Product Description

Lithium Ion Cell 402050 3.7V 400mAh Rechargeable 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

Parameter	Specification
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	2.55V ±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: 50±2mm Width: 20±0.5mm Thickness: 4±0.2mm
Cycle Life	≥500 cycles

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

Tags:

Products Details

Home > Products >

Lithium Polymer Battery Cell

Lithium Ion Cell 402050 3.7V 400mAh 1.48wh Rechargeable Li-polymer Lipo Battery Cells

All Category

Lithium Ion Cell 402050 3.7V 400mAh 1.48wh Rechargeable Li-polymer Lipo Battery Cells

Brand Name:	RESKY
Model Number:	LP402050
MOQ:	100pcs
Price:	Negotiable
Packaging Details:	Paper box
Payment Terms:	T/T,Western Union

Detail Information

Product Description

Detail Information

Place of Origin:

China

Brand Name:

RESKY

Certification:

MSDS, Un38.3

Model Number:

LP402050

Model NO.:

LP402050

Nominal Capacity:

400mAh

Weight:

MOQ:

10PCS

Cycle Life:

500cycles

Warranty:

12months

Shipping:

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

Lead Time:

3-7workdays

Connector:

Jst, Molex....

Specification:

4*20*50mm

Minimum Order Quantity:

100pcs

Price:

Negotiable

Packaging Details:

Paper box

Delivery Time:

7-10days

Payment Terms:

T/T,Western Union

Supply Ability:

50000pcs/day

Highlight:

402050 lithium ion battery cell

3.7V rechargeable lipo battery

400mAh lithium polymer cell

Product Description

Lithium Ion Cell 402050 3.7V 400mAh Rechargeable 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

Parameter	Specification
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	2.55V ±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: 50±2mm Width: 20±0.5mm Thickness: 4±0.2mm
Cycle Life	≥500 cycles

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

Tags:

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

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

products details

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

Lithium Ion Cell 402050 3.7V 400mAh 1.48wh Rechargeable Li-polymer Lipo Battery Cells

402050 lithium ion battery cell

3.7V rechargeable lipo battery

400mAh lithium polymer cell

Lipo Batteries

Lithium Polymer Battery Pack

Li-Polymer Batteries

Products Details

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

Lithium Ion Cell 402050 3.7V 400mAh 1.48wh Rechargeable Li-polymer Lipo Battery Cells

402050 lithium ion battery cell

3.7V rechargeable lipo battery

400mAh lithium polymer cell

Lipo Batteries

Lithium Polymer Battery Pack

Li-Polymer Batteries