Cylindrical Lithium Ion Batteries

Supply Cylindrical Lithium Ion Batteries for ESS projects, with OEM/ODM cell and pack customization, controlled production and stable supply. Contact us.

21700 4000mAh Rechargeable 3.7V 4.2V Lithium Ion Cylinders CE Certified 500 Cycles

$3.10-3.50 /pieces

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

MOQ 10 pieces
Model NO. SC-25066
Service OEM / ODM
Quality You Can Trust
Flexible & Scalable Solutions
Customizable Product Options
Comprehensive Specifications
Your Reliable Business Partner

Introduction

Battery Size21700Cathode MaterialsLiMn2O4
Cycle Life500 cyclesBattery TypeLiquid
Operating Temperature(℃)-20~60℃Weight70g
Product name21700 Lithium BatteryVoltage3.7v~ 4.2v
Capacity4000mAhTypeLithium 3.6V Ion Battery 21700
Keywords3.6v Lithium Ion BatteryCycle life500 Cycles
OEM/ODMAccepatableProtectionBuilt-in Smart BMS
CertificationCE/RoHS/UN38.3/MSDSShapeCylindrical Shape

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.

Copyright © 2026 China Loong Energy Storage Co., Ltd. All rights reserved.
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21700 4000mAh Rechargeable 3.7V 4.2V Lithium Ion Cylinders CE Certified 500 Cycles

SKU: SC-25066

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