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

LFP 26650 Cylindrical Cell 3200mAh 3.2V 4-Pack

$30.00

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 4-pack 26650 LiFePO4 cells, 3200mAh at 3.2V with ≤20mΩ resistance, 2000-cycle 100% DOD life, ISO 9001/IATF 16949. Order now.

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Description

3200mAh 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 122Wh/kg with a nominal capacity of 3200mAh, 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. This model is a proven specification for European and North American markets with long-term stable mass production. 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) 3200 mAh
Minimum Capacity (0.2C) 3200 mAh
Nominal Voltage 3.2 V
Energy Density 122 Wh/kg
Internal Resistance ≤20 mΩ
Weight ≈84 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: 3200mAh nominal capacity with 122Wh/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.
  • Globally Proven: Long-term stable mass production, designated model for European and North American markets.

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®

This lithium iron phosphate cell must be operated within a voltage window of 2.5V to 3.65V and a charge temperature range of 0°C to 45°C. Sustained high-temperature operation and absence of a dedicated LFP BMS with cell balancing may accelerate capacity degradation and compromise safety.

  • Voltage Window: Operate the cell between 2.5V and 3.65V to avoid over-discharge or over-charge conditions.
  • Charge Temperature: Charge the cell only within an ambient temperature range of 0°C to 45°C.
  • Discharge Temperature: Discharge the cell within an ambient temperature range of -20°C to 60°C.
  • BMS Requirement: Use a dedicated LFP battery management system with cell balancing, especially for high-voltage series strings.
  • Avoid Sustained High Temperature: Avoid sustained high-temperature operation to prevent accelerated capacity loss.

This procedure outlines the safe handling and initialization steps for the 26650 LFP cell. Proper adherence to voltage and temperature limits is critical for safety and longevity.

Required Equipment: Digital multimeter, LFP-compatible battery charger, LFP battery management system (BMS) with cell balancing

  1. Verify Cell Voltage
    Measure the open-circuit voltage of each cell with a digital multimeter to ensure it is within the 2.5V to 3.65V safe operating window.
  2. Check Charging Temperature
    Confirm the ambient temperature is between 0°C and 45°C before initiating the first charge.
  3. Connect BMS
    Connect the cells to a dedicated LFP battery management system with cell balancing capability.
  4. Charge at Standard Rate
    Apply a standard charge current of 0.5C (1600 mA) using a compatible LFP charger until the maximum charge voltage of 3.65V is reached.
  5. Monitor Discharge Conditions
    Operate the cell within the discharge temperature range of -20°C to 60°C and do not exceed the maximum continuous discharge current of 3C.

What is the cycle life trade-off between 100% DOD and reduced DOD operation for this 3200mAh 26650 LFP cell?

At 100% depth of discharge (DOD) under standard conditions, the cell provides 2000 cycles. When cycled at a 1C charge/discharge rate with a shallower DOD, it can reach 7000 cycles. To maximize longevity, the manufacturer recommends operating within 2.5V–3.65V and avoiding sustained high temperatures.

What thermal and infrastructure constraints must be considered when integrating this 26650 LFP cell into a high-voltage series pack?

Charge temperature must be strictly between 0°C and 45°C, while discharge is allowed from –20°C to 60°C. The maximum charge voltage is 3.65±0.03V, and a dedicated LFP BMS with cell balancing is required for high-voltage series strings. The cell’s low internal resistance (≤20 mΩ) and excellent cell-to-cell consistency support reliable series integration.

What intrinsic safety features does this 26650 LFP cell have and what packaging is used for safe handling and storage?

The cell includes a built-in explosion-proof safety vent and passes nail penetration testing without fire or explosion, eliminating thermal runaway risk. It is shipped in anti-static plastic trays (50 cells per tray) with insulated terminal covers for safe transport. Manufacturing traceability is ensured under ISO 9001:2025 and IATF 16949 standards.

This 3200mAh 26650 LFP cell offers high energy density (122Wh/kg) and exceptional cycle life (7000 cycles at 1C), but requires strict voltage window management (2.5V–3.65V for maximum longevity) and a dedicated LFP BMS for series configurations, with a charge temperature floor of 0°C.

Positive

  • High energy density & capacity: 3200mAh nominal capacity with 122Wh/kg energy density enables compact, energy-dense battery packs for stationary storage and auxiliary power systems.
  • Intrinsic safety & long cycle life: Passes nail penetration without fire or explosion, and delivers 7000 cycles at 1C charge/discharge with a 20-year design life, reducing replacement frequency in long-term installations.

Trade-offs

  • Charge temperature floor of 0°C: Charging is limited to 0–45°C, requiring thermal management systems in cold environments to avoid damage or reduced cycle life.
  • Requires BMS for series strings: To maintain cell matching and stay within the recommended voltage window (2.5–3.65V) for maximum cycle life, a dedicated LFP battery management system with balancing is mandatory in high-voltage packs.

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). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).

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