Description
EVE MB31 314AH 3.2v LFP A+ Grade
Out of Stock until late January 2025
New Prices in 2025 include Delivery
*Exclusions apply- Additional Shipping costs see bottom of page
MB31 is real capacity is over 330AH.
Why buy from Lifepo4 Australia
1. Warranty 5 Years – (Alibaba is essentially no warranty. As you cannot reasonably return cells. EVE only supplies 1 year)
2. Quality Guarantee
3. Genuine A+ or Auto Grade
This newly released in 2024 next generation EVE 314ah 3.2v Prismatic LFP cell, has been verified by EVE Laboratory to be able to reach 8,000 cycles, this is due to new novel manufacturing technology, the secret sauce of LFP chemistry has gone through multiple iterations, the quality of the Cathode and Anode materials has been improved, and it is now expected that under the right conditions, these cells can reach a lifetime of up to 20 years in perfect conditions
MB31
- Model Name： MB31
- Nominal Capacity： 314Ah
- Nominal Voltage： 3.2V
- Standard Charge/ Discharge: 0.5C / 0.5C
- Cycle Life： 8000 Cycles
- Energy Density: 178wh/kg
- MSDS, IEC 62619, UN38.4
- Data Sources： EVE’s Laboratory
| Specification Parameters | |
|---|---|
| Nominal Capacity | 314Ah |
| Nominal Voltage | 3.2V |
| Initial IR | <0.18 mΩ (A+ Auto Grade) |
| Weight | 5600g ±300g |
| Charging Cut-off Voltage | 3.65V |
| Discharging Cut-off Voltage | 2.5 V T >0℃ 2.0 V T ≤0℃ |
| Discharging Temperature | – 30~60℃ |
| Storage Temperature | 0~35℃ |
| Model Name | MB31 |
| Cycle Life | 8000 |
| Standard Charging Power | 0.5P |
| Standard Discharging Power | 0.5P |
| Height(H) with terminal | 207.2 mm ±0.5 mm |
| Height(h) without terminal | 204.6 mm ±0.5 mm |
| Length | 173.7 mm ±0.5 mm |
| Thickness | 71.7 mm ±0.8 mm |
Q. Can you ever go above 0.5C with the EVE MB31 or MB30 cell?
A. Yes, this cell can support burst discharge current of up to 2C, and a continuous 1C, however, you may reduce the cycle life.
(Explaination, heat is generated inside the cell, this heat leads to degredation, along with other chemical reactions like lithium plating)
In most cases, it is ok to go above 0.5C discharge rate. But we do recommend keeping these situations to a minimum in large battery banks.
Small 12v batteries you need to get some use from them, so we do recommend planning to use them up to 1C continuos in those camping and vehicle type applications.
For 12.8v 4s 314ah battery you could plan to use up to a 3000-3500W inverter with these cells.
(This is because these batteries are commonly used intermittently and sporadically and lifespan is crossing a natural degradation rate anyway)
For 51.2v 16s you should plan to use up to 7000-8000W,
(this is because in almost all cases these cells are operating continuosly everyday and lifespan is important for cost and value reasons)
We advise following all required safety standards such as the following:
- AS/NZS 5033, Installation and safety requirements for photovoltaic (PV) arrays
- AS/NZS 4509.1, Stand-alone power systems, Part 1: Safety and installation
- AS 4086.2, Secondary batteries for use with stand-alone power systems, Part 2: Installation and maintenance
- AS/NZS 3000, Wiring Rules
- AS/NZS 1768, Lightning protection
- AS 4777, Grid connection of energy systems via inverters.
Additional Shipping charges are as follows
Regional usually $10 per cell additional
NT, WA and Tas usually $20 per cell extra
*Rural may require business/commercial address in your nearby town/city $10-$20 per cell
Shipping Dangerous goods requires additional fees, We must quote your shipping costs, because there can be extreme differences between locations. Some locations might be 10 x times as much as others. This is why we must exclude these named locations.
We may also need to send to a nearby business in some circumstances, and for large orders a forklift may be required.
This is a common occurance due to Dangerous Goods, and the small number of carriers who can deliver them in Australia legally.
