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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 LiFePO4 LFP Cylindrical Cell 3600mAh 3.2V ATOMFAIR®

$35.00

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.

Commercial-grade 26650 LiFePO4 cell, 3600mAh at 3.2V with ≤20mΩ resistance, 2000 cycles at 100% DOD, ISO 9001:2025. Order now.

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3600mAh High-Capacity 26650 Lithium Iron Phosphate (LFP) Cylindrical Battery (4-Pack)

COMMERCIAL GRADE · PRODUCTION

Product Overview
The ATOMFAIR® 26650 High-Capacity LFP (LiFePO4) cylindrical cell delivers industry-leading energy density of 132Wh/kg with a nominal capacity of 3600mAh, making it an ideal choice for energy-dense applications. Engineered for long-duration and high-voltage series configurations, this cell offers exceptional cell-to-cell consistency, a design life of 20 years, and a 5-year warranty. With 1C charge/discharge cycle life reaching 7000 cycles and standard cycle life of 2000 cycles at 100% DOD, it provides outstanding longevity for stationary storage, EV auxiliary batteries, and backup power systems. Featuring a built-in safety vent and nail penetration without fire or explosion, it combines high energy with intrinsic LFP safety. 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) 3600 mAh
Minimum Capacity (0.2C) 3600 mAh
Nominal Voltage 3.2 V
Energy Density 132 Wh/kg
Internal Resistance ≤20 mΩ
Weight ≈87 g
Cycle Life (100% DOD, 25°C) 2000 cycles
Charge Parameters
Max. Charge Voltage 3.65 ± 0.03 V
Standard Charge Current 0.5C
Max. Charge Current 2C
Discharge Parameters
Min. Discharge Voltage 2.0 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
  • High Capacity 26650 LFP Cell: 3600mAh nominal capacity with 132Wh/kg energy density — ideal for high-voltage, large-format battery packs.
  • Exceptional Cycle Life: 7000 cycles at 1C charge/discharge, and 2000 cycles at 100% DOD under standard conditions.
  • Long Design Life & Warranty: 20-year design life with 5-year warranty, ensuring reliable performance for long-term installations.
  • Excellent Cell Consistency: Suitable for high-voltage series configurations with minimal voltage variation between cells.
  • Intrinsic Safety: Built-in explosion-proof vent, passes nail penetration without fire or explosion, zero thermal runaway risk.

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 (2.5V – 3.65V) and avoid sustained high-temperature operation. Always use a dedicated LFP BMS with cell balancing, especially for high-voltage series strings.

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

The ATOMFAIR 26650 LFP cell requires operation within strict voltage and temperature limits to ensure safety and longevity. Use a dedicated LFP battery management system with cell balancing, and avoid sustained high-temperature operation.

  • Voltage Window Constraint: Operate cells within the recommended voltage window of 2.5V to 3.65V to maximize cycle life and prevent damage.
  • Temperature Range Constraint: Charge only between 0°C and 45°C, and discharge only between -20°C and 60°C to avoid thermal runaway.
  • BMS Requirement: Always use a dedicated LFP battery management system with cell balancing, especially in high-voltage series configurations.
  • Safety Vent Compliance: The cell includes a built-in explosion-proof vent and passes nail penetration testing without fire or explosion.
  • Storage and Transport Guidelines: Use anti-static plastic trays and insulated terminal covers for safe storage and transport.

Follow these steps to safely handle, configure, and initialize the ATOMFAIR 26650 LFP battery for use in stationary storage or high-voltage packs. All actions are derived from the manufacturer's operational warnings and packaging guidelines.

Required Equipment: Dedicated LFP battery management system (BMS) with cell balancing, Insulated terminal covers

  1. Set Voltage Limits
    Set the battery management system's charge voltage limit to 3.65V and discharge voltage limit to 2.5V to comply with the recommended operating window.
  2. Configure BMS
    Install a dedicated LFP battery management system that supports cell balancing for all series strings.
  3. Monitor Temperature
    Monitor operating temperature closely and ensure charge temperature stays between 0°C and 45°C and discharge temperature between -20°C and 60°C.
  4. Transport Safely
    Apply the included insulated terminal covers to each battery terminal before transport or storage.

What is the cycle life of the ATOMFAIR 26650 LFP 3600mAh cell under different charge/discharge rates?

The cell delivers up to 7000 cycles at 1C charge/discharge rates, and 2000 cycles at 100% depth of discharge under standard conditions. This trade-off allows optimizing for either extreme longevity or full usable capacity depending on the application.

Can the 26650 LFP cells be configured in series for high-voltage packs, and what BMS is required?

Yes, the cells are designed for high-voltage series configurations due to excellent cell-to-cell consistency with minimal voltage variation. A dedicated LFP BMS with cell balancing is mandatory to maintain safe operation and maximize cycle life, especially in long series strings.

What safety features and handling precautions are specified for the ATOMFAIR 26650 LFP cell?

The cell includes a built-in explosion-proof safety vent and passes nail penetration testing without fire or explosion, ensuring zero thermal runaway risk. For handling, operate within 2.5V–3.65V voltage window and 0°C to 45°C charge temperature, and use insulated terminal covers during transport to prevent short circuits.

The 26650 LFP cell offers 3600mAh capacity and 132Wh/kg energy density with exceptional cycle life of up to 7000 cycles, but requires careful thermal management and a dedicated BMS for optimal performance in series configurations.

Positive

  • High Energy Density and Capacity: 132Wh/kg energy density and 3600mAh nominal capacity enable compact, energy-dense battery packs for stationary storage and high-voltage applications.
  • Exceptional Cycle Life and Longevity: Achieves 7000 cycles at 1C charge/discharge and 2000 cycles at 100% DOD, supported by a 20-year design life and 5-year warranty, reducing replacement frequency.

Trade-offs

  • Temperature Sensitivity and Operating Window: Limited charge temperature range (0°C to 45°C) and discharge range (-20°C to 60°C); sustained high-temperature operation degrades cycle life.
  • BMS and Voltage Management Required: Requires a dedicated LFP BMS with cell balancing to maintain voltage within 2.5V–3.65V for maximum cycle life, adding system complexity and cost.

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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