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Low temperature LFP battery cell structured as a standard 26650 cylindrical component with ultra stable olivine cathode chemistry.

26650 3500mAh Low Temperature LFP Battery Series | ATOMFAIR

$10.00

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.

Low temperature LFP battery cell series in a standard 26650 form factor. Delivers 3500mAh capacity and supports direct sub-zero charging down to -20°C.

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Description

3500mAh Ultra-Low-Temperature 26650 Lithium Iron Phosphate (LFP) Cylindrical Battery

COMMERCIAL GRADE · PRODUCTION

Product Overview
The ATOMFAIR® 26650 Low-Temperature LFP (LiFePO4) cylindrical cell is engineered for extreme cold-weather energy storage applications. With a nominal capacity of 3500mAh and the unique ability to charge and discharge at temperatures as low as -20°C without external heating, this cell eliminates the need for battery warmers in winter environments. Offering high energy density (128Wh/kg), military-grade reliability, and civilian-friendly pricing, it is the ideal choice for off-grid solar storage, EV auxiliary batteries, cold-region telecom backup, and polar research equipment. 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) 3500 mAh
Minimum Capacity (0.2C) 3450 mAh
Nominal Voltage 3.2 V
Energy Density 128 Wh/kg
Internal Resistance ≤25 mΩ
Weight ≈87 g
Cycle Life (80% DOD, 25°C) 1500 cycles
Charge Parameters
Max. Charge Voltage 3.65 ± 0.03 V
Standard Charge Current 0.5C
Max. Charge Current 1.0C @ T>0°C; 0.5C @ T≤0°C; 0.2C @ T≤-10°C
Discharge Parameters
Min. Discharge Voltage 2.00 V @ T > -20°C; 1.50 V @ T ≤ -20°C
Standard Discharge Current 0.5C
Max. Continuous Discharge Current 1.0C (module level)
Discharge Performance >70% @ -40°C to 1.5V; >75% @ -20°C to 1.5V; >98% @ 60°C to 1.5V
Temperature Ranges
Charge Temperature -20°C to 55°C
Discharge Temperature -40°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
  • Direct Charge & Discharge at Sub-Zero Temperatures: No pre-heating required — capable of charging at temperatures as low as -20°C.
  • Excellent Low-Temperature Power Output: Supports continuous 1C discharge below 0°C with >90% discharge efficiency.
  • High Energy Density for Cold Storage Markets: 128Wh/kg enables compact, lightweight battery packs for harsh environments.
  • Military-Grade Reliability at Civilian Prices: Extreme durability and robust cycle life (1500 cycles @ 80% DOD) without premium cost.

APPLICATION SCOPE: Off-grid solar storage in cold regions, EV auxiliary batteries, telecom backup in northern climates, polar research equipment, cold-chain logistics, and portable power for winter sports.
PACKAGING: Anti-static plastic trays (50 cells per tray, 200 cells per master carton). Insulated terminal covers included for safe transport.
IMPORTANT NOTICE: For charging at -20°C, use the recommended CC-CV profile with a reduced charge current (≤0.2C). The cell will not accept charge below -20°C. Always pair with a low-temperature BMS that enables charging only when cell temperature is within safe limits.

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

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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