EVE 314Ah MB31 LiFePO4 Battery Cells - Brand New Grade A with QR Code

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EVE MB31 314Ah Test Video：

The EVE MB31 is Original LiFePO4 cells directly from EVE, with certificate (each cell is individually tested and signed by the inspector).

Actual capacity of the cells: 314–330Ah

Important: The cells must be insulated with GFK (fiberglass-reinforced plastic) plates.

Specification

Battery brand: EVE

Battery model: MB31

Chemistry: Lithium Iron Phosphate (LiFePO4 or LFP)

Nominal voltage: 3.2V

Operational voltage: 2.5 V – 3.65 V

Nominal capacity: 314Ah

AC impedance resistance: ≤0.25mΩ

Weight: 5.6±0.3kg

Dimensions (mm): 207.2*71.7*173.7±0.5

Terminal: M6

Cycle life: ≥8000 cycles (0.5C/0.5C,  25±2℃, 70%SOH)

Standard charge/discharge power: 0.5P/0.5P

Standard charge/discharge cut-off Voltage: 3.65V/2.5V

Max continuous charge/discharge power: 0.5P/0.5P

Storage temperature: 0℃~35℃

Charging temperature: 0℃~65℃

Discharging temperature: -30℃~60℃

Available documents:

• Datasheet
• LFP Standards

• Risk Disclosure

Features

1. High-Capacity LiFePO4 Cells 

These premium LiFePO4 cells or batteries with a 314Ah capacity come directly from the renowned manufacturer EVE Energy. Using advanced Lithium Iron Phosphate (LiFePO4) technology, these Grade A+ cells deliver exceptional performance and reliability.

2. Long Life Cycle – Up to 8,000 Cycles

Built to last, these Grade A+ LiFePO4 cells offer up to 8,000 charge and discharge cycles, making them a top choice for long-term energy storage solutions such as DIY solar storage systems.

3. Ready-to-Use & Balanced Cells

Each cell is balanced and ready for immediate use, ensuring optimal performance right out of the box. The set also includes the required busbars/connectors, so you can get started quickly.

4. Warranty & Technical Information

• Includes a 5-year warranty

• Datasheet available for download. Click here

• 24/7 Customer Support Available

NOTE: Please clean all contact surfaces with alcohol (isopropanol) and abrasive pad. Uncleaned cell voltage difference can be up to 0.500 mV, cleaned difference is 0.001–0.005 mV.

Warranty

The warranty period is 5 years from the date you receive.

We only replace new cell for free due to the failure of manufacturing.

Before the shipment, we will detect the cell voltage/resistance/appearance and other issues. we can only ensure that single cell is good before the shipment.

When arrival you can test the cells within 1 week, if you found problems please contact us for refund or replace. Any return behavior buyers need to be responsible for shipping fee.

Remark

Please read carefully all the description before taking orders, the battery is suitable for DIY lovers with experience, people who are not familiar with the safe use of lithium battery knowledge, please go to our shop to buy the finished product.

DIY battery pack must get the cells balanced (same voltage ) before assembly.
And we don’t accept refund for buyers who don’t know how to assembled or unbalanced assembly.

Please use the correct BMS during assembly. We don’t accept refund for the problem caused during assembly process or after the assembly. Such as not use the BMS, the BMS connected to the wrong wire lead to battery damage, charger failure, the assembly error or unbalanced assembly, etc.

Before assembling, please make sure use the same capacity cell and use the same brand of the cell. It is forbidden to mix cells with different capacity and brand in the same battery system. Otherwise, we will not be responsible for quality assurance.

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