Description
2500mAh High-Rate 26650 Lithium Iron Phosphate (LFP) Cylindrical Battery (4-Pack)COMMERCIAL GRADE · PRODUCTION
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TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official institutional quotations.
EMAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This document outlines critical safety and operational constraints for the 2500mAh 26650 LFP cylindrical battery. Adherence to these constraints is mandatory to prevent thermal runaway, electrical hazards, and premature capacity degradation.
- BMS Requirement: Always use a battery management system (BMS) with overcurrent and short-circuit protection when operating this cell.
- Charge Current Limit: Maximum charge current of 12500 mA is only permitted when cell state of charge (SOC) is ≤40% and charging duration is less than 5 minutes.
- Thermal Management: Ensure proper thermal management for discharge currents exceeding 20C continuous to maintain cell temperature within safe limits.
- Transport Protection: Insulated terminal covers must be used during transport to prevent accidental short circuits.
- SOC Verification: Verify the cell state of charge (SOC) is at or below 40% before applying the maximum charge current.
These steps guide the safe initial handling and operational setup for the 2500mAh high-rate LFP battery. Following this procedure minimizes risk of electrical shock, short circuit, and thermal damage.
Required Equipment: Battery Management System (BMS), Insulated terminal covers, Anti-static plastic tray
- Inspect Cell
Inspect the cell for any physical damage or deformation before unpacking or use. - Connect to BMS
Connect the cell to a battery management system (BMS) with overcurrent and short-circuit protection. - Verify SOC
Verify the cell state of charge (SOC) is at or below 40% before applying charge currents exceeding 5000 mA. - Apply Thermal Management
Apply proper thermal management when operating at continuous discharge currents above 20C. - Transport Safely
Transport the cell with insulated terminal covers in an anti-static plastic tray to prevent short circuits.
Can the 2500mAh 26650 LFP cell deliver its full nominal capacity when discharged at the maximum continuous current of 50A?
No, the nominal 2500mAh capacity is specified at a 1C discharge rate (2.5A). The cell supports 20C continuous discharge (50A), but the delivered capacity at that rate is not stated in the specifications. Due to internal resistance of ≤7 mΩ and polarization losses at high current, usable capacity will be lower than the nominal rating.
What BMS and thermal management are required when integrating this 2500mAh 26650 LFP cell into a high-drain battery pack?
A BMS with overcurrent and short-circuit protection is mandatory. For discharge rates above 20C, proper thermal management must be ensured. The maximum charge current of 12500 mA is only allowed when SOC is ≤40% and charging time is under 5 minutes, so the BMS must enforce these restrictions. Additionally, the BMS should monitor temperature to keep charge within 0–45°C and discharge within -20–60°C.
What storage and handling precautions are necessary for the 2500mAh 26650 LFP cells to ensure safety and performance?
Cells are shipped in anti-static plastic trays with insulated terminal covers to prevent short circuits during transport and storage. For long-term storage, maintain the cells within the discharge temperature range of -20°C to 60°C and avoid physical damage. While the cell features an explosion-proof safety vent and passes nail penetration without fire or explosion, a BMS with overcurrent and short-circuit protection is still required when assembling packs.
The 26650 LFP cell offers 2500mAh capacity with 20C continuous discharge and excellent safety, but requires careful thermal management and conditional charging limits for high-rate use.
Positive
- Ultra-high discharge capability: Supports 20C continuous discharge (50A) and 75A long-pulse current for 60 seconds, enabling reliable operation in high-drain applications such as starter batteries, power tools, and UPS systems.
- Intrinsic safety features: Built-in explosion-proof safety vent and nail penetration approval without fire or explosion provide zero thermal runaway risk, essential for high-rate and safety-critical deployments.
Trade-offs
- Conditional fast charge limit: Maximum charge current of 12500 mA is permitted only when SOC ≤40% and charging duration is less than 5 minutes; otherwise charging is limited to 5000 mA fast charge or 2500 mA standard charge, requiring active BMS monitoring.
- Temperature performance constraints: Discharge capacity degrades to >70% at -10°C and >80% at 0°C; charge temperature is restricted to 0–45°C, necessitating thermal management for consistent performance in extreme environments.
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).
