LFP CELL 3.2V 15AH CNAE 32140 ESS A GRADE (c2ac)

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CNAE 32140 15Ah 3.2V Grade-A ESS Cylindrical LiFePO4 Battery Cell

Technical Product Data Sheet (Batch/Model: c2ac)

The CNAE 32140 Grade-A ESS Cell is a high-capacity, heavy-duty Lithium Iron Phosphate ( $\text{LiFePO}_4$ ) cylindrical battery specifically engineered for large-scale Energy Storage Systems (ESS) and high-drain power applications. Combining an impressive 15Ah (15,000mAh) capacity with a 3.2V nominal voltage, this robust 32140 form-factor cell yields a significant 48Wh of energy per unit.

Meticulously manufactured to Grade-A criteria, it delivers highly predictable matching metrics, low internal resistance, and superior thermal management. These features make it an ideal choice for constructing modular battery arrays, off-grid power walls, and light electric vehicle powertrains.

Core Product Highlights

Massive Unitary Capacity: Packs a high 15Ah capacity into a single cylindrical shell, drastically reducing the number of total cells and spot-welded links required to build high-energy battery packs.
ESS Grade Longevity: Specially rated for stationary grid and industrial energy configurations, sustaining over 2,500 to 3,000 deep cycles (at 80% DOD) while maintaining strong energy retention.
High Current Capability: Reliably supports a 2C to 3C maximum discharge threshold, allowing it to output significant transient current under demanding mechanical loads.
Intrinsically Safe Chemistry: LFP technology boasts immense thermal runaway thresholds, remaining non-combustible and completely explosion-proof even under severe puncture or electrical stress.
Rock-Solid Voltage Stability: Offers a consistently flat voltage plateau across the majority of the discharge curve, delivering uniform efficiency to connected electronics.

Technical Specifications

Parameter	Specification
Brand / Manufacturer	CNAE
Form Factor / Geometry	32140 (Cylindrical)
Chemical Composition	Lithium Iron Phosphate ( $\text{LiFePO}_4$ / LFP)
Quality Category	A-Grade (ESS Certified)
Nominal Voltage	3.2V
Nominal Capacity	15Ah / 15,000mAh
Total Stored Energy	48 Wh per cell
Standard Continuous Discharge	0.5C to 1C
Maximum Discharge Current	2C to 3C (Continuous/Pulse dependent)
Maximum Charge Voltage	$3.65\text{V} \pm 0.05\text{V}$
Discharge Cut-off Boundary	2.0V
Internal Resistance (AC IR)	$\le 2.5\text{m}\Omega$ to $3\text{m}\Omega$
Cycle Life Index	$\ge 3,000$ cycles (at 80% Depth of Discharge)
Physical Dimensions	32mm (Diameter) x 140mm (Height)
Average Weight	~300g – 310g

Primary Applications

Thanks to its spacious form factor and massive 15Ah single-cell layout, this product excels in multiple industrial sectors:

Stationary Energy Storage Systems (ESS) & Powerwalls

The optimal core component for building high-capacity residential solar arrays, off-grid energy storage banks, backup energy fields, and large-scale utility reserves.

Electric Mobility & Transportation

Provides clean, consistent energy with low degradation rates for e-bikes, cargo e-rickshaws, commercial utility carts, and lightweight electric vehicles.

Industrial UPS & Automation

Serves as an immediate, heavy-duty emergency backup supply for critical telecom towers, manufacturing equipment, server arrays, and automated robotics.