EVE MB31 314Ah LiFePO4 Prismatic Cell – 1004.8Wh (1kWh) | Grade-A

EVE MB31 314Ah LiFePO4 Cell — The 1kWh Powerhouse for Next-Gen Energy Storage

The EVE MB31 314Ah LiFePO4 cell represents the cutting edge of prismatic lithium iron phosphate technology. Engineered by EVE Power, this massive 1004.8Wh (1kWh) cell is designed specifically for high-capacity residential solar storage, Commercial & Industrial (C&I) Energy Storage Systems (ESS), and off-grid microgrids. With an industry-leading 8000-cycle life at 70% State of Health (SOH) and ultra-low 0.18mΩ internal resistance, the MB31 delivers over 20 years of reliable daily cycling.

At Newon, we supply only Grade-A, factory-matched EVE MB31 cells  — tested for capacity, internal resistance, and voltage consistency. Whether you are building a 5kWh home backup system or a 100kWh commercial solar array, this is the definitive cell for maximum energy density and lifecycle ROI. Explore our full Custom Battery Solutions for complete pack integration.

Complete Technical Specifications (EVE PBRI-MB31-D06-01)

Why the EVE MB31 314Ah Dominates the Solar & ESS Market

1. True 1kWh Energy Density Per Cell

At 1004.8Wh per cell, system design becomes incredibly efficient. A standard 16S1P configuration yields a 51.2V 314Ah (16.07kWh) battery pack using only 16 cells — drastically reducing busbar complexity, BMS channels, and physical footprint compared to older 100Ah or 280Ah cells.

2. 8000 Cycle Life to 70% SOH

Most standard LFP cells offer 4000–6000 cycles. The MB31 is engineered for 8000 cycles at 70% capacity retention under standard 0.5P conditions. For a daily-cycling solar system, this translates to over 21 years of operational life, making the Levelized Cost of Storage (LCOS) exceptionally low.

3. Ultra-Low 0.18mΩ Internal Resistance

Lower internal resistance means less heat generation during high-current charging (e.g., bulk solar charging) and discharging (e.g., inverter surge loads). This keeps the pack cooler, reduces thermal management overhead, and extends calendar life.

4. Advanced Safety & Thermal Runaway Resistance

The MB31 passes all rigorous EVE safety tests — including overcharge, over-discharge, external short-circuit, crush, drop, and heating (130°C) — with no fire and no explosion. Its robust prismatic aluminum shell and optimized electrode chemistry provide superior thermal stability.

System Configurations & Pack Building Formulas

Use these formulas to design your ESS with EVE MB31 314Ah cells:

Standard 48V/51.2V Residential & Commercial ESS (16S1P)

Pack Voltage = 3.2V × 16S = 51.2V Nominal
Pack Capacity = 314Ah × 1P = 314Ah
Total Energy = 51.2V × 314Ah = 16,076Wh (16.07 kWh)
Max Continuous Discharge (0.5P) = 502.4W per cell × 16 = 8,038W (8kW)

24V/25.6V Marine or Off-Grid System (8S1P)

Pack Voltage = 3.2V × 8S = 25.6V Nominal
Total Energy = 25.6V × 314Ah = 8,038Wh (8.03 kWh)

Critical Mechanical & Thermal Engineering Guidelines

Building a safe, long-lasting prismatic LFP pack requires strict adherence to mechanical constraints. Newon engineers all custom packs to these exact EVE specifications:

• Compression Force: Cells must be compressed in the Z-axis (thickness direction). Recommended compression force is 3000 N to 7000 N (approx. 300–700 kgf). Instantaneous max is 10,000 N. Proper compression prevents electrode delamination and extends cycle life.
• Swelling Force Management: LFP cells expand during cycling. At 70% SOH, swelling force reaches ≤50,000 N; at 60% SOH, it reaches ≤60,000 N. Pack enclosures and end-plates must be structurally rated to withstand this force. We recommend reserving 2.0mm to 2.5mm expansion gap per cell in the module design.
• Thermal Conductivity: Mean thermal conductivity is 9–11 W/(m·K) in the X/Z directions, but only 2–3 W/(m·K) in the Y direction (through the cell stack). Thermal management (cooling plates or heatsinks) must be applied to the large X/Z faces, not the narrow edges.
• Busbar Welding: Laser welding depth must be ≤ 2.0mm. Max torque on terminals is 6 N·m. Max pole temperature during welding is 130°C to prevent plastic insulator deformation.

BMS Protection & Safety Limits

Any BMS paired with the MB31 must be programmed to these strict EVE safety limits to maintain warranty and prevent irreversible damage:

Newon’s Custom ESS & Battery Pack Integration

Don’t risk your 16kWh investment on DIY busbars and generic BMS settings. Newon’s Custom Battery Solutions Pakistan service provides turnkey ESS integration:

• Grade-A Cell Matching: Capacity and IR matched within strict tolerances.
• Professional Busbaring: Laser-welded or torque-rated copper/aluminum busbars with proper terminal insulation.
• Smart BMS Integration: JK, Daly 200A–400A Smart BMS with RS485/CAN communication for hybrid inverter integration (Deye, Growatt, Victron, GoodWe).
• Structural Enclosures: CNC-fabricated steel or aluminum cases engineered to handle the 60,000N EOL swelling force with proper compression end-plates.

Frequently Asked Questions

How does the EVE MB31 314Ah compare to the older 280Ah cells?

The MB31 offers 12% more capacity in a similar physical footprint, reducing the total cell count required for a 10kWh+ system. It also features a lower internal resistance (0.18mΩ vs ~0.25mΩ on older cells) and an upgraded 8000-cycle life rating.

Can I use these cells for a 12V camper or RV battery?

Yes, a 4S1P configuration yields 12.8V 314Ah (4.01kWh). However, due to the physical size and weight (5.6kg per cell), they are best suited for large, stationary battery boxes rather than small portable setups.

Do you provide matching and testing data with the cells?

Yes. For bulk and pack orders, Newon provides a test report showing the exact OCV (Open Circuit Voltage), ACIR (Internal Resistance), and capacity of every cell to ensure perfect parallel/series balancing.

What BMS do you recommend for a 16S 51.2V MB31 pack?

We recommend a 16S Smart BMS rated for at least 150A–200A continuous discharge (to support 5kW–10kW inverters), featuring RS485/CAN ports to communicate directly with your solar hybrid inverter.

Is it safe to ship these 1004Wh cells across Pakistan?

Yes. We ship cells at the factory-recommended 30%–40% SOC (Storage Voltage ~3.2V) in UN3480-compliant packaging, with terminal protection and shock-absorbing materials. Nationwide delivery takes 2–5 days.

Order Your EVE MB31 314Ah Cells Today

Price: Contact via WhatsApp for current Grade-A bulk pricing. · Free shipping on full-pack cell orders.

Need a complete 5kWh, 10kWh, or 16kWh server-rack battery built? Send your inverter brand and load requirements — we’ll engineer, assemble, and deliver a plug-and-play ESS.

📱 WhatsApp / Call: +92 343 9227883 · 📧 Email: info@newon.pk