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

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

Cycle Life

Discharge Curve

Operating Temperature Range

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.

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.

Our Mission:  Original Innovation, Power the Future!

As a high-tech enterprise specializing in the R&D and manufacturing of lithium-ion batteries, sodium-ion batteries, and solid-state batteries. Founded in 2020 in Shenzhen, China’s innovation hub, we are driven by our core philosophy of "Original Innovation & Development" , delivering sustainable, high-performance energy solutions for global applications, including consumer electronics, smart devices, electric vehicles, and energy storage systems.

With dozens of proprietary patents, the accreditation of Guangdong Provincial Eco-Friendly Lithium Battery Engineering Research Center, and strategic collaborations with leading institutions like National University of Singapore, Wuhan University, and Shenzhen University, OiD continuously pushes the boundaries of battery technology. Our products power critical infrastructure, including high-speed rail energy storage, residential solar systems, and defense projects, accelerating the global transition to clean energy.

Key Strengths

1.  Original Innovation
   • Core technologies in Li/Na-ion and solid-state batteries, backed by inventions, utility models, and design patents.
   • Joint R&D centers with top universities (e.g., Wuhan University), enabling rapid commercialization of cutting-edge research.
2.  End-to-End Energy Solutions
   • 500+ customizable battery models for consumer electronics, EVs, and grid-scale storage.
   • Superior performance: high energy density, fast charging, extended cycle life, and extreme-temperature resilience
3. Sustainability Commitment
   • Eco-conscious materials (e.g., cobalt-free cathodes, solid electrolytes) and processes to minimize environmental impact.
4. Global Reach
   • R&D Hubs: Shenzhen, Wuhan (university partnerships)
   • Manufacturing: Automated production lines in Shenzhen
   • Markets: Asia, Europe, North America