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OEM 184021 3.7V 220mAh Rechargeable LiPo Polymer Battery Cell

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OEM 184021 3.7V 220mAh Rechargeable LiPo Polymer Battery Cell

Minimum Order Quantity :	2 Packs	Price :	Negotiable
Packaging Details :	Each battery is packed in a protective PE bag with foam cushioning and a strong export carton. Wooden cases or pallets are available for bulk orders.	Delivery Time :	25–35 Working Days
Supply Ability :	2,000 Pieces per Month

Place of Origin:	Hunan,China	Brand Name:	Chalongfly
Certification:	UN38.3, MSDS	Model Number:	CLF-LP184021-220

Product Description

Product Description

Compact Rechargeable Lithium Polymer Battery

184021 3.7V 220mAh Lithium Polymer Battery Cell

Compact LiPo pouch battery solution for wearable electronics, portable devices and customized OEM applications.

3.7V Nominal Voltage

220mAh Rated Capacity

0.814Wh Nominal Energy

Small Lithium Polymer Battery for Compact Electronics

The Chalongfly 184021 lithium polymer battery is a rechargeable 3.7V 220mAh cell solution for electronic products where installation space and battery capacity must be carefully balanced.

Its single-cell lithium polymer architecture is suitable for compatible low-voltage power systems, including compact wearables, portable electronic accessories, sensors and embedded devices.

OEM battery assembly options can include protection circuitry, wires, connectors and temperature monitoring according to the approved device design.

Technical Specifications

Model	CLF-LP184021-220
Cell Size Code	184021
Battery Type	Rechargeable Lithium Polymer Cell
Nominal Voltage	3.7V
Rated Capacity	220mAh
Nominal Energy	0.814Wh
Cell Configuration	1S1P
Typical Charge Limit	4.2V, Subject to Cell Datasheet
Charging Method	CC/CV
Charge Current	According to Approved Specification
Discharge Current	According to Approved Specification
Cell Dimensions	To Be Confirmed by 184021 Drawing
Cell Weight	According to Approved Datasheet
PCM Protection	Optional
NTC Sensor	Optional
Wires / Connectors	Customizable
OEM / ODM	Available

Compact Soft-Pouch Cell Design

Lithium polymer pouch cells provide an alternative to conventional cylindrical batteries for electronic devices with limited internal space.

The 184021 model is intended for compact product integration where cell thickness, width, length and terminal placement are important design parameters.

Final mechanical fit should be checked using the approved battery drawing, including dimensional tolerances, terminal position and the additional space required for protection circuitry and wiring.

0.814Wh Rechargeable Energy Capacity

3.7V × 0.22Ah = 0.814Wh Nominal Battery Energy

The 220mAh capacity class is intended for electronic products with appropriately matched operating current and runtime requirements.

Actual operating time depends on the device load profile, peak current, power management efficiency, battery temperature and discharge cut-off conditions.

Optional Battery Protection Circuit

A bare lithium polymer cell and a protected battery assembly are different product configurations. A protection circuit can be integrated according to the application.

Overcharge Protection

Optional PCM circuitry can help prevent charging beyond the approved battery protection threshold.

Over-Discharge Protection

Protection circuitry can disconnect the load when the battery reaches the configured low-voltage protection limit.

Over-Current and Short-Circuit Protection

The selected protection circuit can support electrical fault protection within its approved current rating.

Temperature Monitoring

An optional NTC sensor can be included for equipment requiring compatible battery temperature feedback.

Custom Wires and Battery Connectors

Battery wire and connector selection is important for compact electronic equipment, where the available installation space and PCB connector position may be restricted.

Chalongfly supports customized battery leads and wiring arrangements according to the approved product drawing.

Wire Length	Customized
Wire Gauge	Selected for Approved Current
Connector Type	According to Customer Drawing
Connector Pitch	Selected for Mating PCB Connector
Pin Assignment	Verified Before Assembly
Protection PCB	Optional

Connector appearance alone does not establish electrical compatibility. Pin assignment, polarity, current rating and mating connector must be checked.

Applications for Compact Electronic Devices

Wearable Electronics Rechargeable battery integration for compact wearable products with suitable power requirements.	Bluetooth Accessories Small battery-powered electronic accessories and compatible wireless devices.
IoT Sensors Compact sensor products requiring a rechargeable lithium battery solution.	Portable Electronic Devices Embedded energy storage for small electronic instruments and portable accessories.

Charging and Electrical Integration

A rechargeable lithium polymer battery must be charged using a suitable lithium-ion charging circuit that follows the approved cell voltage, current and temperature limits.

A typical 3.7V lithium polymer cell uses a constant-current and constant-voltage charging method. Final charging parameters must follow the selected cell datasheet.

The cell must not be connected directly to an unregulated power supply or charged without appropriate charging control and battery protection.

OEM and ODM Lithium Polymer Battery Solutions

Chalongfly provides OEM battery integration services for compact electronic devices and custom rechargeable power applications.

Lithium polymer cell model selection
Cell dimensions and enclosure fitment review
Custom battery capacity evaluation
Optional PCM protection circuit
Optional NTC temperature sensor
Wire gauge and length customization
Connector model and polarity matching
Battery labeling and identification
Sample development and electrical testing
OEM packaging and technical documentation

Frequently Asked Questions

What is the nominal energy of this battery?

The 3.7V 220mAh configuration provides 0.814Wh of nominal energy.

Is model 184021 a rechargeable lithium polymer cell?

The featured product is a rechargeable 3.7V 220mAh lithium polymer battery cell. Final cell dimensions and construction must be confirmed against the approved specification.

Does the cell include a protection circuit?

A bare cell does not automatically include a protection PCB. PCM protection can be configured for a complete battery assembly.

Can the battery connector be customized?

Yes. Wire length, connector type, pin assignment and polarity can be customized according to the approved electrical drawing.

What is the charging voltage?

A typical 3.7V lithium polymer cell has a 4.2V charging limit. The approved cell specification determines the actual charging voltage and current.

Can this battery power a Bluetooth device?

It can be evaluated for compatible Bluetooth accessories when operating current, peak current, battery dimensions and required runtime match the device design.

Can an NTC temperature sensor be included?

An optional NTC sensor can be considered for battery assemblies requiring compatible temperature monitoring.

Can the battery be supplied for OEM production?

Yes. OEM projects can include battery configuration, protection PCB, wiring, connector matching, labeling and production testing.

What information is needed for a quotation?

Please provide the required dimensions, nominal voltage, capacity, device operating current, protection requirements, connector drawing, wire length, order quantity and destination country.

Request an OEM 184021 LiPo Battery Quotation

Contact Chalongfly with your battery size requirements, 3.7V 220mAh specifications, device application, charging and discharging conditions, connector requirements and order quantity. Our team can assist with cell selection, PCM protection, wire harness customization and compact lithium polymer battery integration.

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