32140 3.2v 15Ah CBAK 32140 LiFePO4 LFP Cell 3.2V 15Ah — High-Quality Battery Cell for EV in pakistan

📄 Detailed Specifications & Description

Product Name / Model

CBAK 32140 / IFR32140 LiFePO₄ Cylindrical Cell (A-Grade)

Key Highlights

High energy density LiFePO₄ chemistry: safer, long life, stable voltage

15,000 mAh (15 Ah) nominal capacity

Suitable for EV packs, solar storage, e-bikes, UPS, etc.

Low internal resistance, good charge/discharge performance

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🧮 Technical Specifications

Parameter Typical / Nominal Value Notes / Conditions

Nominal Voltage 3.20 V LiFePO₄ standard

Capacity 15 Ah Measured at 0.5 C charge & discharge 

Charge Cut-off Voltage 3.60 V CC/CV charging 

Discharge Cut-off Voltage 2.00 V (some sources mention 2.5 V) Use safe margin 

Max Continuous Discharge 2 C (≈ 30 A) Some suppliers claim 2C standard 

Max Pulse / Peak Discharge Up to 6 C (≈ 90 A) Under controlled short pulses 

Internal Resistance (AC 1 kHz) ≤ 3 mΩ Good low internal resistance 

Dimensions (Ø × Height) 33.2 ± 0.2 mm × 140.0 ± 0.3 mm Typical cylindrical size 

Weight ~ 290 ± 10 g Including shell/tube 

Cycle Life ≥ 2,000 cycles (to ~80% capacity) Under recommended charge/discharge conditions 

Operating Temperature Charge: 0 °C to 45 °C <br> Discharge: –20 °C to 60 °C Standard safe ranges 

Storage Temperature –20 °C to 45 °C (short term) <br> –10 °C to 25 °C (long term) To preserve capacity 

Certifications CE, RoHS, UN38.3, IEC62133 Common with LiFePO₄ safe cells 

Chemistry / Cell Type LiFePO₄ / Cylindrical Lithium iron phosphate safe chemistry

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✏️ Description 

The CBAK 32140 15Ah LiFePO₄ cell is a premium cylindrical battery cell engineered for high reliability and long service life. With its stable 3.2 V nominal cell voltage, low internal resistance, and robust cycle performance, it is ideal for building battery packs for:

Electric bikes, electric scooters, small EVs

Solar energy storage systems, off-grid setups

UPS / backup power banks

Portable power tools, robotics, and industrial applications

This cell is designed to deliver consistent performance even under demanding usage. It has safety advantages inherent to LiFePO₄ chemistry (thermal stability, less risk of thermal runaway), making it a solid choice for high-stress battery pack designs.

When building packs, always pair with a suitable Battery Management System (BMS) for balancing, over-current protection, over/under voltage protection, and thermal control.