Description
5000mAh High-Capacity 26650 NCM Lithium-Ion 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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Operate cells strictly within 2.75V to 4.20V window to prevent irreversible capacity loss. Maintain charge temperatures between 0°C and 45°C and avoid sustained discharge above 60°C to minimize degradation risks.
- Storage and Transport: Store cells in anti-static trays with insulated terminals in a cool, dry environment away from conductive materials.
- Voltage Limits: Charge to maximum 4.20V ±0.03V and discharge to minimum 2.75V to prevent overcharge or over-discharge damage.
- Thermal Management: Avoid sustained operation above 60°C during discharge to prevent accelerated aging and safety vent activation.
- BMS Requirement: Use a dedicated battery management system with cell balancing for all series configurations.
- Cycle Life Considerations: Maximum cycle life of 3000 cycles at 1C rate (80% SOH) is achieved only when operating within specified voltage and temperature windows.
Follow these steps to safely handle and prepare the 26650 cells for use in battery packs. Proper inspection, insulation, and BMS configuration are critical for safety and longevity.
Required Equipment: Insulated terminal covers, Anti-static plastic tray, Battery management system (BMS)
- Inspect Cells
Inspect each cell for physical damage, swelling, or leakage before handling. - Install Terminal Covers
Install insulated terminal covers on all exposed terminals during transport and storage. - Arrange in Trays
Place cells in anti-static plastic trays to prevent short circuits. - Configure BMS
Configure BMS with charge voltage limit of 4.20V and discharge cutoff of 2.75V. - Charge Cells
Charge cells using standard 0.5C current within temperature range 0°C to 45°C. - Monitor Voltage
Monitor individual cell voltages regularly when cells are in series configuration. - Avoid High Temperature
Avoid operating cells above 60°C during discharge to preserve cycle life.
What is the trade-off between cycle life and depth of discharge for the 5000mAh 26650 NCM cell?
The cell provides 1500 cycles at 100% depth of discharge (DOD) under standard conditions. However, at 1C charge/discharge with an 80% state-of-health (SOH) threshold, it achieves up to 3000 cycles, indicating that reducing DOD significantly extends cycle life. Operating within the recommended voltage window of 2.75V to 4.2V and avoiding sustained high-temperature conditions further maximizes longevity.
Can the 5000mAh 26650 NCM cell be used in high-voltage series configurations, and what precautions are necessary?
Yes, the cell is designed for high-voltage series configurations due to its excellent cell-to-cell consistency and minimal voltage variation. However, a dedicated battery management system (BMS) with cell balancing is required, and the voltage must be strictly maintained within 2.75V to 4.2V to prevent overcharge or overdischarge. The cell's built-in safety vent and zero-fire/zero-explosion field record add extra reliability in series packs.
What storage and handling conditions are required to maintain safety and performance of the 26650 NCM battery pack?
Cells are packaged in anti-static plastic trays with insulated terminal covers for safe transport. Charge temperature must be between 0°C and 45°C, and discharge temperature between -20°C and 60°C. The built-in explosion-proof safety vent provides overpressure protection. For maximum cycle life, avoid sustained high-temperature operation and always use a BMS with cell balancing in series strings.
This 5000mAh 26650 NCM cell delivers industry-leading energy density and cycle life for stationary storage and backup applications, but requires strict voltage window compliance and a dedicated BMS for safe series operation.
Positive
- Ultra-High Energy Density and Capacity: Nominal 5000mAh capacity with 190Wh/kg energy density makes this the highest capacity 26650 cell available, enabling extended runtime in stationary storage, UPS, and auxiliary battery systems.
- Exceptional Cycle Life and Longevity: Delivers 3000 cycles at 1C charge/discharge to 80% SOH and 1500 cycles at 100% DOD, backed by an 8-year design life and a proven zero-fire/zero-explosion field record, ensuring long-term reliability.
Trade-offs
- Narrow Charging Temperature Range: Charge operation is restricted to 0°C to 45°C; charging below 0°C is not permitted, limiting usability in cold environments without thermal management.
- Required BMS and Voltage Window Discipline: To maximize cycle life and ensure safe operation, cells must be maintained within 2.75V–4.2V using a dedicated BMS with cell balancing—especially critical in high-voltage series strings.
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).
