Lithium Ion Batteries Pack

We manufacture Lithium Ion Batteries Pack for energy storage, offering OEM/ODM integration, custom housings, quality control, stable supply; contact us.

Cylindrical 3.7V 4000mAh 21700 Lithium-Ion Battery for DIY Battery Packs and Power Tools

$1.69-2.09 /pieces

Price varies depending on material, logo, quantity and customization requirements.

MOQ 1000 pieces
Model NO. SC-03248
Service OEM / ODM
Quality You Can Trust
Flexible & Scalable Solutions
Customizable Product Options
Comprehensive Specifications
Your Reliable Business Partner

Introduction

Battery Size21700Cathode MaterialsINR
Cycle Life800cyclesOperating Temperature(℃)45℃
Weight82gCathode MaterialsLiCoO2
Can MaterialNi-IronStandard Charge Voltage4.20V
Upper limit charging voltage4.25VStandard Discharge Cut-off Voltage2.50V
Standard Charging ModeCC-CV (cut off current is 80mA)Standard Charging Current2A
Max. Charge Current6AMax. Continuous Discharge Current35A
Max. Pulse Discharge Current80A ( 2s pulse )

We are China Loong Energy Storage Co., Ltd., a professional manufacturer and supplier specializing in Energy Storage. We have brought together and coordinated resources across the Energy Storage supply chain, enabling us to maintain consistent product quality and establish long-term partnerships with clients worldwide.

Our mission is to provide high-quality products and reliable service. We are committed to offering the following advantages:

  • Stable production system ensuring consistent quality, dependable supply, and standardized manufacturing management;
  • Strict quality control covering material selection, processing, surface finishing, and final packaging;
  • Variety of products and specifications to meet diverse project requirements and application scenarios;
  • OEM & customization support based on drawings, samples, or specific technical requirements;
  • Flexible packaging solutions to ensure safe handling and transportation of products;
  • Continuous improvement in products and services to better support customers in different markets.

If you are interested in our products, please feel free to contact us. We look forward to establishing long-term and mutually beneficial cooperation with you.

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Cylindrical 3.7V 4000mAh 21700 Lithium-Ion Battery for DIY Battery Packs and Power Tools

SKU: SC-03248

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