REPT 3.2V 314A – A Grade Cell LiFePO4 Cell For Lithium Battery

REPT 3.2V 314A – A Grade Cell Details

The 314Ah LFP battery (Model QC-0B1-72174L4-BE), manufactured by Battero tech Corporation Limited, is a high-capacity rechargeable lithium iron phosphate (LiFePO₄) cell engineered for durability, safety, and performance in demanding energy storage and power delivery applications.

1. General Characteristics
This battery cell offers a nominal capacity of 314Ah with a nominal energy of 1005Wh, ensuring long-duration power supply. It operates within a voltage range of 2.5V to 3.65V under standard conditions, with an impedance of ≤ 0.25mΩ (1kHz). Recommended SOC operating range is 5%–95%, ensuring optimal longevity.

2. Dimensions and Weight
The cell dimensions are: width 174.26 ± 0.60mm, thickness 71.92 ± 0.80mm, and height 207.11 ± 1.00mm. It weighs 5.55 ± 0.15kg, resulting in a high energy density of 190Wh/kg and volumetric density of 420Wh/L.

3. Performance

• Cycle Life: ≥ 8000 cycles at 25°C under standard charge/discharge until capacity reduces to 70% (219.8Ah).

• Discharge Capacity: ≥314Ah at 25°C and 55°C; ≥220Ah at -20°C.

• Charge/Discharge Rates: Standard charge/discharge at 0.5P (502.4W). Maximum continuous discharge is ~2P (2000W), with a peak rate of ~3P (3000W) for 0.5 minutes.

• Temperature Range: Charging: 0°C–60°C; Discharging: -30°C–60°C; Storage: -40°C–60°C (≤90% RH, no condensation).

• Self-Discharge: ≤3% per month at 30% SOC, 25°C.

4. Safety and Reliability
The cell meets stringent safety standards and demonstrates no explosion, fire, or leakage under extreme conditions such as overcharge, over-discharge, short circuit, drop tests, thermal abuse (130°C hotbox), crush, and temperature cycling. These features make it highly reliable for applications requiring consistent performance and resilience.

5. Storage Performance
The battery retains ≥97% capacity after 1 month and ≥95% capacity after 6 months of storage at 25°C when charged to 100% SOC under 300kgf clamping force.

6. Application and Protection
For safe and optimal use, a Battery Management System (BMS) is required to monitor voltage, current, and temperature. Built-in protections must terminate charging at 3.65V, enforce overcharge cutoffs at 3.75V and 3.90V, and stop discharging at 2.5V (>0°C) or 2.0V (≤0°C). Over-current, short-circuit, and over-temperature safeguards are mandatory.