Request A Quote
English

OiD452539-440 3.7V 440mAh 1.5A Discharge 500 Cycles Lithium Polymer Battery

Product Details:
Place of Origin: China
Brand Name: OiD
Certification: Complies with GB/T 18287-2013, IEC/EN61960, and UL1642 safety standards.
Model Number: OiD452539-440
Payment & Shipping Terms:
Minimum Order Quantity: 100pcs
Price: $0.5 ~ $100.0 / pcs
Delivery Time: 3 ~ 7 days for storage
Payment Terms: TT, L/C, Western Union
  • Detail Information
  • Product Description

Detail Information

Name: Lithium Ion Battery Battery Type: 3.7V, 440mAh Rechargeable
ODM: Free Custom Design For Packs High Energy Density: 250-300Wh/kg
Superior Cold Weather Performance: Reliable In Extreme Cold (-20°C To 60°C) Cycle Life: 500+ Cycles
Charging/ Discharging: 1C/ 1.5C Flexible Form Factor: Thin, Customizable Pouch Design Lithium Ion Battery
Highlight:

3.7v 2a lithium battery

,

3.7v lithium ion battery

,

1.5a 2a lithium battery

Product Description

Product Name

OiD452539-440 Lithium Polymer Battery


Advantages

  • High Energy Density & Lightweight: Ideal for compact devices requiring long runtime.
  • Extended Cycle Life: Stable capacity retention even after repeated use.
  • Built-in Safety: Multi-protection circuits against overcharge, over-discharge, and short circuits.

Specifications

Parameter

Value

Nominal Voltage

3.7V

Minimum Capacity

420mAh (0.2C discharge)

Typical Capacity

440mAh (0.2C discharge)

Charging Voltage

4.2V (±50mV)

Discharge Cut-off Voltage

3.0V

Standard Charge Current

0.2C (88mA)

Max Charge Current

1.0C (440mA)

Standard Discharge Current

0.2C (88mA)

Max Discharge Current

1.5C (660mA)

Weight

Approx. 9.0g

Internal Impedance

≤200mΩ (AC 1kHz)


Cycle Life

Test Condition

Performance

0.2C Charge/Discharge Cycles

500 cycles

Capacity Retention

≥80% of initial capacity


Discharge Curve

OiD452539-440 3.7V 440mAh 1.5A Discharge 500 Cycles Lithium Polymer Battery 0


Operating Temperature Range

Condition

Temperature Range

Charging

0°C to 45°C

Discharging

-20°C to 60°C

Long-term Storage (50% SOC)

-10°C to 25°C (12 months, ≥85%)


-10°C to 45°C (6 months, ≥85%)


-10°C to 55°C (1 month, ≥90%)


Certifications

  • Complies with GB/T 18287-2013, IEC/EN61960, and UL1642 safety standards.

Key Features

  • High Discharge Capability: Supports 1.5C continuous discharge for power-demanding applications.
  • Low Self-Discharge: <3% per month at 25°C.
  • Wide Temperature Tolerance: Operates reliably in extreme environments (-20°C to 60°C).

Applications

  • Wearable Electronics: Fitness bands, smartwatches, hearing aids.
  • IoT & Smart Devices: Sensors, RFID tags, GPS trackers.
  • Medical Devices: Portable monitors, diagnostic tools, wearable health devices.
  • Consumer Electronics: Wireless earbuds, mini drones, handheld gaming devices.

OiD452539-440 3.7V 440mAh 1.5A Discharge 500 Cycles Lithium Polymer Battery 1


Usage Warnings & Precautions

  • Do NOT puncture, crush, or immerse in liquid.
  • Avoid charging outside 0°C–45°C to prevent damage.
  • Use certified chargers matching 4.2V CC/CV protocol.
  • Immediately discontinue use if battery leaks, swells, or exceeds 60°C during operation.

Storage Guidelines

  • Short-term (≤3 months): Store at 20±5°C, 50% SOC.
  • Long-term (>3 months): Recharge to 50% SOC every 6 months.
  • Environment: Dry, non-condensing area away from flammable materials.

Warranty & Disclaimer

  • Warranty: 12 months from shipment date, covering manufacturing defects.
  • Exclusions: Physical damage, misuse, or unauthorized modifications void warranty.
  • Disclaimer: Proper handling is critical. Users assume full risk for non-compliant applications.

 

Get in touch with us

Enter Your Message

You Might Be Into These