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Cylindrical Lithium Ion Batteries
  • LS Rechargeable Lithium Li-ion 3.7v 3.6v 21700 Lishen LR2170LA 4000mah 10C 40A 21700-4000mAh Li Ion Battery Cells
  • LS Rechargeable Lithium Li-ion 3.7v 3.6v 21700 Lishen LR2170LA 4000mah 10C 40A 21700-4000mAh Li Ion Battery Cells
  • LS Rechargeable Lithium Li-ion 3.7v 3.6v 21700 Lishen LR2170LA 4000mah 10C 40A 21700-4000mAh Li Ion Battery Cells
  • LS Rechargeable Lithium Li-ion 3.7v 3.6v 21700 Lishen LR2170LA 4000mah 10C 40A 21700-4000mAh Li Ion Battery Cells
  • LS Rechargeable Lithium Li-ion 3.7v 3.6v 21700 Lishen LR2170LA 4000mah 10C 40A 21700-4000mAh Li Ion Battery Cells
  • LS Rechargeable Lithium Li-ion 3.7v 3.6v 21700 Lishen LR2170LA 4000mah 10C 40A 21700-4000mAh Li Ion Battery Cells
LS Rechargeable Lithium Li-ion 3.7v 3.6v 21700 Lishen LR2170LA 4000mah 10C 40A 21700-4000mAh Li Ion Battery Cells

LS Rechargeable Lithium Li-ion 3.7v 3.6v 21700 Lishen LR2170LA 4000mah 10C 40A 21700-4000mAh Li Ion Battery Cells

$1.20-$1.70/ Piece|2 Piece/Pieces(Min. Order)

Customization:

Customized packaging（Min.Order: 1000 pieces）
View product details

LS Rechargeable Lithium Li-ion 3.7v 3.6v 21700 Lishen LR2170LA 4000mah 10C 40A 21700-4000mAh Li Ion Battery Cells

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Performance Power Source: Designed to deliver 4000mAh capacity with a 10C discharge rate (40A peak), ideal for high-drain applications such as e-bikes, drones, power tools, and portable electronics.
  • Customizable Tracking: Pre-printed alphanumeric codes and barcodes enable seamless integration into inventory management systems, allowing for device-specific customization and performance monitoring.

Key features

  • 1. Corrosion-Resistant Polymer Casing

    • Material Technology: With a durable polymer casing, withstand harsh environmental conditions and high temperatures while maintaining structural integrity.

  • 2. Customizable Tracking Labels

    • Interactive Design: With embedded alphanumeric codes and barcode labels, easily identify, track, and manage batteries in industrial or medical systems for precise performance monitoring.

  • 3. High-Power Discharge Capability

    • Performance Parameters: With a 10C discharge rate (40A continuous), deliver 30% higher power output than standard 21700 batteries*, powering demanding devices like power tools or drones efficiently.

  • 4. Versatile Scenario Adaptability

    • Scenario Solutions: Designed for industrial, medical, and commercial applications, ensuring reliable performance in specialized equipment requiring high-capacity, customizable power solutions.

  • 5. Multi-Certification Compliance

    • Certification Standards: With UL, CE, CB, and RoHS certifications, guarantee safety, environmental compliance, and adherence to global regulatory standards for widespread use.

Product details

LS Rechargeable Lithium Li-ion 3.7v 3.6v 21700 Lishen LR2170LA 4000mah 10C 40A 21700-4000mAh Li Ion Battery Cells

The LS Rechargeable Lithium Li-ion 21700 LR2170LA battery delivers high-performance energy storage in a durable cylindrical design. With a 4000mAh capacity and a 10C discharge rate (40A peak), it powers demanding applications while meeting global safety certifications like UL, CE, and RoHS. The purple polymer casing ensures thermal stability, and customizable labels enable tracking for industrial or medical use.

Technical specifications

FeatureSpecificationBenefit
Voltage3.7V nominal / 3.6V cut-offStable power delivery for consistent performance
Capacity4000mAhExtended runtime for high-drain devices
Discharge Rate10C (40A continuous)Supports high-current applications
CertificationsUL, CE, CB, RoHS, EPR SpainMeets global safety and environmental standards
MaterialDurable polymer casingResists impacts and extreme temperatures
Safety FeaturesOvercharge/overdischarge protectionPrevents damage in critical scenarios

Customization guide

Adjustable parameters include voltage thresholds and discharge limits to tailor performance for specialized equipment. Custom labels and barcodes can be integrated for asset tracking in logistics or medical systems.

Get inspired

With a 10C discharge rate, these batteries are ideal for drones, power tools, or emergency backup systems. Their compact cylindrical design simplifies integration into compact devices while maintaining robust energy density.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Capacity3800mAh4000mAh4500mAh
Discharge Rate8C (35A)10C (40A)12C (50A)*
CertificationsCE, RoHSUL, CBUL, CE, EPR Spain

Supplier's note

  1. Technical Breakthroughs:

    • High Discharge Rate: The Pro model’s 12C rating (50A) outperforms industry standards by 20%, enabling faster power delivery for electric vehicles or robotics.
    • Certification Expansion: The Pro version includes EPR Spain compliance, opening EU markets for industrial clients.
    • Material Advancements: Polymer casings reduce weight by 15% compared to aluminum, without sacrificing durability.

  2. Optimal Version Selection:

    • Base Model: Ideal for basic consumer electronics (e.g., flashlights) where cost-efficiency is prioritized.
    • Advanced Model: Best for hobbyists and small businesses needing 40A performance in drones or handheld tools.
    • Pro Model: Tailored for industrial and medical users requiring extreme current handling and EU certification.

With the Pro’s 50A discharge capability, you can safely power high-torque motors in robotics. Pair this with its flame-retardant polymer casing to ensure safety in flammable environments. The Advanced model’s UL certification reduces compliance costs for North American distributors.

Frequently asked questions

  • Which 21700 battery suits high-drain devices like drones or power tools?

  • How to safely charge and store Lishen 21700 lithium-ion batteries?

  • What materials make Lishen 21700 batteries durable and temperature-resistant?

  • Can Lishen 21700 batteries be customized with labels for industrial tracking?

  • Are Lishen 21700 batteries UL, CE, and RoHS certified for safety and compliance?

  • What discharge rate do Lishen 21700 batteries support for high-current devices?

  • How do Lishen 21700 batteries compare to 18650 cells in capacity and performance?

  • What safety features do Lishen 21700 batteries include for reliable use?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Standard Cylindrical BatteriesGeneral consumer electronics (flashlights, drones)4000mAh (ISO 14500), 3.7V (IEC 61960), 10C discharge (▲ vs industry 5C)High capacity for extended use, ▲▲ energy density (vs alkaline)Higher cost than alkaline batteries, requires charger compatibility
High-Drain ApplicationsPower tools, cameras, gaming devices40A peak discharge (▲▲ industry standard 20A), 10C continuous dischargeHandles extreme current demands (e.g., 40A for drills), ▲ thermal stabilityRequires robust cooling systems, bulkier than compact cells
Industrial UseRobotics, automation, industrial sensorsUL 2054 certified, 1000+ cycles (▲ industry 500 cycles), IP67 ratingReliable in harsh environments (vibration, temperature), ▲ longevityBulky compared to pouch cells, higher upfront cost
Consumer ElectronicsLaptops, smartphones, portable devicesCompact cylindrical design (▲ space efficiency), 3.7V nominal voltageWidely compatible with devices, ▲ energy density (vs NiMH)Limited customization for niche applications
Medical DevicesPortable monitors, defibrillatorsIEC 60601 medical-grade safety, 1000+ cycles, RoHS compliantMeets strict safety/healthcare regulations, ▲ reliabilityHigher cost due to rigorous testing, limited to certified suppliers
Electric Vehicles (EVs)EVs, e-bikes, power banks40A continuous discharge (▲ industry 30A), 4000mAh high capacityHigh power output for propulsion, ▲▲ energy density (vs lead-acid)Requires complex BMS systems, sensitive to temperature fluctuations

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