Samsung 18650 Battery Cell

Why Choose Senco Battery?

Proven Reliability in Every Cell

Proven Reliability in Every Cell

The 18650 lithium cell has long been the industry benchmark for rechargeable cylindrical batteries.
Its stable voltage , excellent cycle life , and consistent quality make it the preferred choice for tools, e-bikes, and portable devices worldwide.

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Perfect Balance of Energy and Safety

Perfect Balance of Energy and Safety

Each cell undergoes strict quality control , including capacity, voltage, and impedance testing before shipment.
With UN38.3, MSDS, and IEC certifications , our 18650 batteries ensure full compliance for international transport and OEM integration.

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The 18650’s standardized size and specifications make it compatible with most battery packs, holders, and management systems.Its cost-performance ratio allows bulk buyers to maintain high efficiency with stable long-term supply.

Widely Compatible and Cost-Effective

The 18650's standardized size and specifications make it compatible with most battery packs, holders, and management systems .
Its cost-performance ratio allows bulk buyers to maintain high efficiency with stable long-term supply .

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Application Scenarios — Powering Industries Worldwide

  • <strong>Power Tools：Reliable Energy for Continuous Operation</strong>

    Power Tools: Reliable Energy for Continuous Operation

    Our high-discharge 18650 cells are widely used in cordless drills, saws, and garden tools.
    They deliver high current output , excellent heat control , and consistent discharge curves , ensuring top performance under industrial workloads.

  • <strong>E-Mobility & Light Electric ：VehiclesEfficient Power for Modern Transport</strong>

    E-Mobility & Light Electric: VehiclesEfficient Power for Modern Transport

    Used in e-bikes, scooters, and AGVs , 18650 cells provide an optimal balance between energy density and safety.
    We support custom pack design (36V / 48V) and BMS integration for OEM production.

  • <strong>Energy Storage Systems：Scalable Power for Home & Commercial Storage</strong>

    Energy Storage Systems: Scalable Power for Home & Commercial Storage

    18650-based modules are ideal for residential ESS , UPS backup , and solar integration . We offer matched voltage control , cycle stability (2000+ cycles) , and low self-discharge rates for long-term reliability.
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18650 Battery – Frequently Asked Questions (FAQ)

What performance grades of 18650 cells do you supply?

We provide high-energy density , high-drain , and long-cycle-life 18650 cells depending on your application — from 3.2V LiFePO4 to 3.7V NCM/NCA chemistries . Each batch is strictly tested for internal resistance, capacity consistency , and voltage deviation ≤0.02V before delivery.

Do you offer customized 18650 battery packs?

Yes. We design and assemble custom 18650 battery packs based on your voltage, capacity, and discharge requirements.
Options include:

  • PCM/BMS integration
  • Nickel tab welding and connector types
  • Series/parallel configurations (eg, 3S2P, 10S5P)
  • Housing design and branding label customization

What certifications do your 18650 cells comply with?

All core cells and packs can meet or include:

  • UN38.3/MSDS/CE/RoHS/IEC62133/UL1642
  • We also support material traceability and provide testing reports on request.

What is your quality control process?


We follow AQL-based multi-stage QC including:

  1. Incoming raw material inspection
  2. Capacity and IR testing
  3. Aging and cycle test (≥3 cycles)
  4. Final voltage sorting and labeling

This ensures batch consistency within ±2% and stable long-term reliability.

What is the typical lead time for bulk orders?

  • Sample order : 3–7 working days
  • Mass production : 15–25 working days depending on order volume and pack complexity
    We also support scheduled delivery for OEM clients.

How do you ensure transportation safety?

All shipments comply with UN3480 / UN3481 standards .
We provide professional dangerous goods packaging , battery terminal insulation, and documentation for air or sea shipment .

What is the typical cycle life of your 18650 batteries?

NCM cells : 500–800 cycles @80% DOD
LiFePO4 cells : 2000+ cycles
We can balance energy density and cycle performance according to your application priorities.