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High density 26650 LFP cylindrical cell battery engineered with an advanced olivine cathode architecture for large scale stationary storage packs.

26650 NCM Lithium-Ion Cell 5000mAh 4-Pack ATOMFAIR®

$39.00

Institutional Procurement & Supply Compliance: As a verified US supplier, Atomfair accepts formal institutional Purchase Orders (POs), contract billing schedules, and custom procurement loops for university and national laboratories, and corporate R&D departments globally.

ISO 9001:2025/IATF 16949 26650 NCM lithium-ion cells with 5000mAh capacity, 3.6V nominal voltage, 190Wh/kg density, 1500-cycle life.

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5000mAh High-Capacity 26650 NCM Lithium-Ion Cylindrical Battery (4-Pack)

COMMERCIAL GRADE · PRODUCTION

Product Overview
The ATOMFAIR® 26650 High-Capacity NCM (LiNixCoyMn1-x-yO2) cylindrical cell delivers industry-leading energy density of 190Wh/kg with a nominal capacity of 5000mAh, making it the highest capacity 26650 cell available. Engineered for high-voltage series configurations and long-duration applications, this cell offers exceptional cell-to-cell consistency, a design life of 8 years, and zero-fire/zero-explosion field record. With 1C charge/discharge cycle life reaching 3000 cycles (to 80% SOH) and standard cycle life of 1500 cycles at 100% DOD, it provides reliable performance for stationary storage, EV auxiliary batteries, and backup power systems. Featuring a built-in safety vent and imported-equivalent quality, this model is ideal for demanding commercial applications. For bulk inquiries or official volume quotations, please contact us via email at inquiry@atomfair.com.

Technical Specifications

PARAMETER VALUE
General Parameters
Nominal Capacity (0.2C) 5000 mAh
Minimum Capacity (0.2C) 4900 mAh
Nominal Voltage 3.6 V
Energy Density 190 Wh/kg
Internal Resistance ≤20 mΩ
Weight ≈95 g
Cycle Life (100% DOD, 25°C) 1500 cycles
Charge Parameters
Max. Charge Voltage 4.20 ± 0.03 V
Standard Charge Current 0.5C
Max. Charge Current 1C
Discharge Parameters
Min. Discharge Voltage 2.75 V
Standard Discharge Current 1C
Max. Continuous Discharge Current 3C
Temperature Ranges
Charge Temperature 0°C to 45°C
Discharge Temperature -20°C to 60°C
Manufacturing Compliance: Fully traceable production under ISO 9001:2025 and IATF 16949 standards. Custom form factors or electrode formulations available upon request.

Key Features & Advantages
  • Ultra-High Capacity NCM Cell: 5000mAh nominal capacity with 190Wh/kg energy density — the highest capacity 26650 cell on the market.
  • Exceptional Cycle Life: 3000 cycles at 1C charge/discharge (80% SOH), and 1500 cycles at 100% DOD under standard conditions.
  • Design Life & Reliability: 8-year design life with imported-equivalent quality, proven zero-fire/zero-explosion field record.
  • Excellent Cell Consistency: Suitable for high-voltage series configurations with minimal voltage variation between cells.
  • Intrinsic Safety: Built-in explosion-proof safety vent, meeting international safety standards.

APPLICATION SCOPE: Stationary energy storage systems (ESS), EV auxiliary batteries, telecom backup, UPS systems, solar street lights, and high-voltage battery packs requiring excellent cell matching.
PACKAGING: Anti-static plastic trays (50 cells per tray, 200 cells per master carton). Insulated terminal covers included for safe transport.
IMPORTANT NOTICE: For maximum cycle life, operate cells within recommended voltage window (2.75V – 4.2V) and avoid sustained high-temperature operation. Always use a dedicated BMS with cell balancing, especially for high-voltage series strings. Do not overcharge or over-discharge.

TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official institutional quotations.
EMAIL: inquiry@atomfair.com
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®

This high-capacity NCM cylindrical cell requires strict adherence to voltage and temperature limits to ensure safe operation. Always use a dedicated BMS with cell balancing for series configurations and avoid sustained high-temperature operation.

  • Voltage Window: Operate within the recommended voltage window of 2.75V to 4.20V.
  • Charge Temperature Range: Charge the cell only within the temperature range of 0°C to 45°C.
  • Discharge Temperature Range: Discharge the cell only within the temperature range of -20°C to 60°C.
  • Safety Vent: The built-in explosion-proof safety vent provides pressure relief in case of internal failure.
  • BMS Requirement: Always use a dedicated BMS with cell balancing, especially for high-voltage series strings.

Follow these steps to safely charge, discharge, and integrate the cell into a battery pack. Ensure proper voltage and temperature monitoring throughout operation.

Required Equipment: Dedicated BMS with cell balancing

  1. Verify Charge Voltage Limit
    Verify the charge voltage does not exceed 4.20V.
  2. Verify Discharge Voltage Limit
    Verify the discharge voltage does not fall below 2.75V.
  3. Integrate BMS
    Use a dedicated BMS with cell balancing for high-voltage series configurations.
  4. Charge Within Temperature Range
    Charge the cell at a standard charge current of 0.5C within the temperature range of 0°C to 45°C.
  5. Discharge Within Temperature Range
    Discharge the cell at a standard discharge current of 1C within the temperature range of -20°C to 60°C.

What is the recommended charge/discharge rate to achieve maximum cycle life for the 5000mAh 26650 NCM cell?

For maximum cycle life, use standard charge at 0.5C and standard discharge at 1C. The cell achieves 3000 cycles at 1C charge/discharge to 80% SOH and 1500 cycles at 100% DOD under standard conditions. Operate within the 2.75V–4.2V window and avoid sustained high-temperature operation.

What are the essential requirements for integrating this 26650 NCM cell into a high-voltage series battery pack?

A dedicated BMS with cell balancing is mandatory for high-voltage series strings. The cell's excellent cell-to-cell consistency minimizes voltage variation, and the built-in safety vent provides intrinsic safety. Operate strictly within 2.75V–4.2V and avoid overcharge or overdischarge.

What storage and handling precautions are required for the 26650 NCM lithium-ion battery pack?

Store cells in anti-static plastic trays with insulated terminal covers to prevent short circuits. Charge only between 0°C and 45°C, discharge between -20°C and 60°C. The built-in explosion-proof safety vent provides additional protection. Always use a BMS to prevent overcharge/overdischarge.

The ATOMFAIR 26650 NCM cell delivers 5000mAh capacity and 190Wh/kg energy density with 1500 cycles at 100% DOD, but requires careful BMS integration and temperature management for optimal performance.

Positive

  • Ultra-high capacity and energy density: 5000mAh nominal capacity with 190Wh/kg energy density, the highest capacity 26650 cell available, enabling long-duration applications.
  • Exceptional cycle life: 3000 cycles at 1C charge/discharge to 80% SOH and 1500 cycles at 100% DOD under standard conditions, providing reliable long-term performance.

Trade-offs

  • Temperature operating constraints: Charge temperature limited to 0-45°C and discharge to -20-60°C; sustained high-temperature operation must be avoided for maximum cycle life.
  • Requires BMS and voltage discipline: A dedicated BMS with cell balancing is essential for high-voltage series strings, and strict operation within 2.75-4.2V is required to prevent overcharge or over-discharge.

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).

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