3.7V 440mAh 1.5C Lithium Polymer Battery 500 Cycles

OiD452539C-440 3.7V 440mAh 1.5C Discharge 500 Cycles Lithium Polymer Battery

Product Name

OiD452539C-440 Lithium Polymer Battery

Advantages

• High energy density and lightweight design
• Long cycle life with stable performance
• Built-in protection circuits for enhanced safety
• Wide operating temperature range

Specifications

Cycle Life

Discharge Curve

Operating Temperature Range

Certifications

• Compliant with GB/T 18287-2013, IEC/EN61960, UL1642 standards

Key Features

• High safety with overcharge, over-discharge, and short-circuit protection
• Low self-discharge rate for long storage life
• Compact and lightweight design for portable devices

Applications

• Wearable devices
• Bluetooth headsets
• Portable medical devices
• IoT devices

Usage Warnings & Precautions

• Use only the original charger to avoid damage.
• Avoid short-circuiting the battery terminals.
• Do not expose the battery to high temperatures or fire.
• Immediately stop using the battery if leakage, swelling, or odor is detected.

Storage Guidelines

• Store the battery at 20±5°C with 50% charge for long-term storage.
• Charge the battery to 60% capacity every 3 months if unused.
• Keep the battery away from moisture and metal objects.

Warranty & Disclaimer

• 12-month warranty from the date of shipment.
• Any damage caused by improper use or handling is not covered by the warranty.

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