Heyi Energy Co,.ltd
| Payment Terms | T/T,Western Union,MoneyGram |
| Supply Ability | 100000 Pcs / Monthly |
| Delivery Time | 7 working days |
| Packaging Details | Carton + Pallet |
| Name | EVE lithium batteries |
| Chemistry | LiFePo4 |
| Nominal Voltage | 3.2V |
| Nominal Capacity | 314Ah |
| Brand Name | EVE |
| Model Number | MB31 |
| Certification | UN38.3 , MSDS |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T,Western Union,MoneyGram | Supply Ability | 100000 Pcs / Monthly |
| Delivery Time | 7 working days | Packaging Details | Carton + Pallet |
| Name | EVE lithium batteries | Chemistry | LiFePo4 |
| Nominal Voltage | 3.2V | Nominal Capacity | 314Ah |
| Brand Name | EVE | Model Number | MB31 |
| Certification | UN38.3 , MSDS | Place of Origin | CHINA |
| High Light | EVE lithium battery cells 3.2V 314Ah ，Grade A LiFePO4 battery cells ，MB31 lithium battery cells with warranty | ||
EVE lithium batteries High Quality Brand New Grade a 3.2V 314Ah Lithium Battery Cells MB31
Our EVE lithium batteries cells are 100% original, never used, and guaranteed Grade A quality — offering exceptional safety, long cycle life, and high consistency, making them the perfect choice for energy storage systems (ESS) and electric vehicle battery packs.
Whether you're building a custom boat lithium battery, a golf cart battery pack, or a high-voltage energy storage battery system, our Brand New Grade A cells deliver superior performance and reliability you can trust.
Key Features:
Nominal Voltage: 3.2V
Capacity: 314Ah
Chemistry: LiFePO4 (Lithium Iron Phosphate)
Cycle Life: ≥8000 cycles @ 80% DOD
Grade: 100% Brand New Grade A
Production Date: Within the last 6 months
Source: Original EVE factory, with verification
Brand New Grade A Cells: 100% original, no second-hand or refurbished cells. Full capacity, low internal resistance, high consistency.
Ultra-long Cycle Life: Over 6000 cycles at 80% depth of discharge (DoD).
High Safety: Stable LiFePO4 chemistry minimizes fire and explosion risks.
Excellent Performance: Low self-discharge, high discharge rates, and robust thermal stability.
Perfect for Custom Packs: Ideal for EV battery pack assembly, energy storage battery banks, marine battery systems, and golf cart upgrades.
Environmental Protection: Manufactured with eco-friendly processes.
Specification :
| Item | Specification | |
| 1 | Chemistry | LiFePo4 |
| 2 | Nominal Capacity | 314Ah |
| 3 | Nominal Voltage | 3.2V |
| 4 | AC-impedance(1000Hz) | 0.2 ~ 0.5mΩ |
| 5 | Weight | 5.6 ± 0.2KG |
| 6 | Dimension (mm) H*W*D | 207X 72X 173 |
| 7 | Maximum Charge Current at Room Temperature | 1 C (Continuous) |
| Charging Voltage | 3.65V | |
| 8 | Maximum Discharge Current at Room Temperature | 1 C (Continuous) 3 C (60s) |
| Discharge End Voltage | 2.5V(>0℃),2.0V(≤0℃) | |
| 9 | Max Operating Temperature Range | |
| Charge | 0℃ ~ 65℃ | |
| Discharge | -35℃ ~ 65℃ | |
| 10 | Optimal Operating Temperature Range | |
| Charge | 15℃ ~ 35℃ | |
| Discharge | 15℃ ~ 35℃ | |
| 11 | Storage Temperature | |
| 1 month | -30℃~ 45℃ | |
| 6 months | -20℃ ~ 35°C | |
| *Cells should be stored at 20%SOC-40%SOC or the voltage is between 3.275V and 3.305V. | ||
Applications :
Residential Energy Storage Systems: Solar battery storage, off-grid power systems.
Electric Vehicles: EV battery pack upgrades, electric car battery packs, electric motorcycles.
Marine Applications: Custom boat lithium battery, electric boat battery solutions, yacht battery systems.
Golf Carts: High-performance golf cart battery replacement.
Industrial Equipment: Lithium forklift batteries, AGV power systems, heavy machinery battery packs.
Backup Power Solutions: Telecom base station UPS, emergency backup power systems.
Why Choose US ?
Guaranteed Brand New Grade A Cells: No refurbished, no recycled — only fresh, authentic EVE lithium batteries.
Factory Direct Price: Competitive rates for bulk lithium battery cells and custom battery pack assembly.
Quality Assurance: Full inspection reports available, including capacity, internal resistance, and voltage matching.
Technical Expertise: Professional support for EV battery pack design, energy storage battery system integration, and marine lithium battery customization.
Global Shipping: Fast, safe delivery to North America, Europe, Southeast Asia, Australia, and beyond.
After-Sales Support: Comprehensive guidance and service from experienced engineers and customer support teams.
HEYI ENERGY – A globally recognized manufacturer of lithium battery and solar energy products.
Q: Do you offer free samples?
A: We don't provide free sample, but the sample cost can return to you when you place bulk orders .
Q: What is your terms of payment?
A: We accepted most of payment terms, like T/T,L/C at sight, PayPal, Western Union, Cash etc.
Q: What is a minimum number (pieces) of order for this product?
A: Our MOQ is 1 piece, the more the quantity, the more preferential it is.
Q: How many time you need for production of one sample?
A: If customized according to customer requirements, production time needs 10-15 working days, if it’s our standardized products most of the time we can supply from stock .
Q: How do you ship the products?
A: For small orders or samples we can arrange door to door air freight delivery , for large quantity we normally arrange container or LCL ocean shipment .
Q: How much does shipping cost?
A:It depends on the quantity of goods, the shipping method, and the country . But we will always figure out the best choice for you .
Q: How can I get the best prices?
A: You get cheaper per-item price when you buy larger quantities. Use the website to check prices. Returning customers receive better discount levels.
Q: What if the product is broken?
A: If any product is faulty, you can send me the picture or video to us, and we will study it. And provide the spare parts for after sale service.
Company Details
Business Type:
Manufacturer
Year Established:
2014
Total Annual:
100000000-1000000000
Employee Number:
500~1000
Ecer Certification：
Verified Supplier
Founded in 2014, Hunan Heyi Energy Technology Co., Ltd. (HY ENERGY) is a leading high-tech enterprise focused on the research, development, and manufacturing of advanced lithium battery technologies. We specialize in LiFePO4 and NMC battery solutions, providing safe, efficient, and eco-friendly ener... Founded in 2014, Hunan Heyi Energy Technology Co., Ltd. (HY ENERGY) is a leading high-tech enterprise focused on the research, development, and manufacturing of advanced lithium battery technologies. We specialize in LiFePO4 and NMC battery solutions, providing safe, efficient, and eco-friendly ener...
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