EVE MB31 3.2V 314Ah LiFePO4 Prismatic Cell – Grade A LFP Battery for Solar & ESS

Description

The MB31 EVE 3.2V 314Ah LiFePO4 is a high‑performance 314Ah LFP prismatic cell engineered for demanding energy‑storage applications. Built with an aluminum shell and advanced LFP chemistry, it delivers exceptional cycle life, thermal stability, and long‑term reliability. Ideal for solar energy storage, off‑grid systems, EV battery packs, industrial power, and high‑capacity DIY battery banks.

✅ Key Features of MB31 EVE 3.2V 314Ah LiFePO4

• 314Ah nominal capacity for high‑density energy storage
• 1004.8Wh nominal energy at 3.2V
• Ultra‑long cycle life: 8000 cycles to 70% SOH
• High safety LFP chemistry with no fire/no explosion performance in abuse tests
• Low internal resistance (0.18 mΩ ± 0.05 mΩ) for efficient power delivery
• Wide operating temperature range
• Durable prismatic aluminum shell
• Excellent high/low‑temperature performance
• Low swelling force and stable mechanical structure

🔋 Electrical Specifications of EVE 3.2V 314Ah LiFePO4

• Nominal Voltage: 3.2V
• Nominal Capacity: 314Ah
• Energy: 1004.8Wh
• Charge Voltage: 3.65V max
• Discharge Cut‑off Voltage:
  • 2.5V (T > 0°C)
  • 2.0V (T ≤ 0°C)
• Max Continuous Charge/Discharge Power: 0.5P (≈502.4W)
• Internal Resistance: 0.18 mΩ ± 0.05 mΩ

🌡️ Temperature Ranges

• Charging: 0°C to 60°C
• Discharging: –30°C to 60°C
• Storage:
  • 1 year: 0°C to 35°C
  • 1 month: –20°C to 45°C

📏 Physical Specifications of EVE 3.2V 314Ah LiFePO4

• Height (with terminals): 207.2 mm ± 0.5 mm
• Height (without terminals): 204.6 mm ± 0.5 mm
• Length: 173.7 mm ± 0.5 mm
• Thickness: 71.7 mm ± 0.8 mm (under 300 kgf compression)
• Weight: 5600 g ± 300 g
• Terminal Center Distance: 123.0 mm ± 0.3 mm

🛡️ Safety Performance

The MB31 passes all major safety tests with no fire and no explosion, including:

• Overcharge
• Over‑discharge
• External short‑circuit
• Crush test
• Drop test
• Low‑pressure test
• Heating test
• Thermal runaway test

✅ Recommended Applications

• Solar energy storage systems
• Home backup power
• Off‑grid cabins
• RV / Marine battery banks
• Industrial UPS systems
• EV conversions
• Large‑scale battery packs
• DIY powerwall projects

⚠️ Important Notes

• Requires a proper BMS for safe operation
• Do not mix with other cell models
• Ensure proper compression and thermal management
• Follow manufacturer guidelines for charging, discharging, and storage

FAQ – EVE 3.2V 314Ah LiFePO4 Cell

Q1: What is the nominal voltage of the EVE 3.2V 314Ah LiFePO4 cell?
A: The nominal voltage of this cell is 3.2 volts, which is standard for LiFePO4 battery chemistry.

Q2: What is the capacity of this cell?
A: The EVE LiFePO4 cell has a capacity of 314Ah, making it ideal for high-energy storage applications.

Q3: What is the cycle life of the EVE 3.2V 314Ah cell?
A: It offers over 8000 cycles at 80% Depth of Discharge (DOD), ensuring long-term reliability.

Q4: What applications is this cell suitable for?
A: This cell is ideal for:

• Solar energy storage systems

• Containerized Battery Energy Storage Systems (BESS)

• Modular EV battery packs

• Backup power and grid stabilization

Q5: Is this cell safe to use?
A: Yes, the EVE 3.2V 314Ah LiFePO4 cell includes overcharge, over-discharge, and short-circuit protection for safe operation.

Q6: Can this cell be used with a Battery Management System (BMS)?
A: Yes, it is fully compatible with modular BMS and PCS systems for efficient monitoring and protection.

Q7: What is the operating temperature range?
A: The cell operates safely between -20°C and 60°C.

Q8: How do I maintain this cell for optimal performance?
A: Avoid deep discharge below recommended DOD, keep the cell within the temperature range, and ensure proper BMS integration.

Q9: Can this cell be combined with other capacities or brands?
A: It is recommended to combine cells of the same brand, chemistry, and capacity for optimal performance and safety.