Product Overview
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| The ATOMFAIR® 26650 High-Rate LFP (LiFePO4) cylindrical cell is engineered for demanding power applications requiring exceptional discharge capability and inherent safety. With a nominal capacity of 3000mAh and the ability to deliver 10C continuous discharge (30A) and 30C pulse (90A for 30s), this cell supports single-cell peak currents up to 125A. Leveraging advanced electrode design and a built-in safety vent, it provides reliable performance for starter batteries, power tools, UPS systems, and other high-drain devices. Offering a cycle life exceeding 1500 cycles at high rates and 2000 cycles at 100% DOD, this cell combines high power density with LFP’s intrinsic thermal stability and abuse tolerance. |
Technical Specifications
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| PARAMETER |
VALUE |
| General Parameters |
| Nominal Capacity (0.5C) |
3000 mAh |
| Minimum Capacity (0.5C) |
3000 mAh |
| Nominal Voltage |
3.2 V |
| Energy Density |
112 Wh/kg |
| Internal Resistance |
≤9 mΩ |
| Weight |
≈86 g |
| Cycle Life (100% DOD, 25°C) |
2000 cycles |
| Dimensions (Diameter x Height) |
26.3±0.1 mm x 65.7±0.2 mm |
| Charge Parameters |
| Max. Charge Voltage |
3.65 ± 0.03 V |
| Standard Charge Current |
1.0C |
| Max. Charge Current |
3.0C |
| Discharge Parameters |
| Min. Discharge Voltage |
2.0 V |
| Standard Discharge Current |
1.0C |
| Max. Continuous Discharge Current |
10C |
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| 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. |
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Key Features & Advantages
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- Ultra-High Discharge Capability: 10C continuous (30A) and 30C pulse (90A for 30s) — single-cell peak current up to 125A, ideal for starter batteries and power tools.
- Extended High-Rate Cycle Life: Exceeds 1500 cycles at 10C discharge (70% SOH) and 2000 cycles at 100% DOD under standard conditions.
- Intrinsic Safety: Built-in explosion-proof vent, nail penetration without fire or explosion, and LFP chemistry’s zero thermal runaway risk.
- Fast Charging & Low Resistance: Supports 3C charge current (9A) with internal resistance ≤9mΩ, minimizing heat generation under high load.
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APPLICATION SCOPE: Automotive starter batteries, high-power electric tools, uninterruptible power supplies (UPS), drone power packs, portable jump starters, and industrial high-rate backup systems.
PACKAGING: Anti-static plastic trays (50 cells per tray, 200 cells per master carton). Insulated terminal covers included for safe transport.
IMPORTANT NOTICE: For high-rate discharge applications (>5C), ensure proper thermal management (active cooling recommended). Never exceed 125A peak current or 30C pulse duration. Always use a BMS with overcurrent and short-circuit protection.
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Frequently Asked Technical Questions
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What is the maximum continuous and peak discharge current?
The cell supports 30A continuous (10C) and 90A pulse for 30 seconds (30C). Single-cell peak current is 125A for very short durations (≤5s). For prolonged high-rate operation, derating based on thermal limits is recommended.
How many cycles can I expect at 10C discharge?
Accelerated life testing shows >1500 cycles to 70% SOH under 10C continuous discharge at 25°C with appropriate cooling. Under standard 1C conditions, cycle life exceeds 2000 cycles at 100% DOD.
Is this cell safe against nail penetration or crushing?
Yes, the cell passes nail penetration tests without fire or explosion, thanks to LFP chemistry and integrated safety vent. It is inherently more abuse-tolerant than NMC or other lithium-ion chemistries.
What safety certifications are available?
The cell complies with UL 1642, IEC 62133-2:2021, UN38.3, and CE. Batch-level test reports for nail penetration, overcharge, and thermal abuse are available upon request.
Can I use this cell for a car starter battery (12V pack)?
Yes, four cells in series provide 12.8V nominal. The 30A continuous and 90A pulse capability are sufficient for most small to medium gasoline engines (e.g., motorcycles, lawn mowers, compact cars). For larger engines, parallel multiple cells to increase cranking current.
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