153.6V~358.4V All In One Lithium Battery High Voltage Lithium Battery Pack Easy Installation

We can arrange Door to Door delivery service for small orders or samples .

HEYI ENERGY is a leading high-tech enterprise specializing in the development and manufacturing of advanced lithium battery technologies. Established in 2014, we focus on lithium iron phosphate (LiFePO4) and lithium-ion (NMC) battery solutions, delivering safe, reliable, and efficient energy storage systems for global markets.

Our state-of-the-art production facilities span over 50,000 square meters, equipped for the large-scale manufacturing of both battery cells and packs. With a workforce of more than 1,500 employees, including over 300 experienced R&D engineers, we continuously drive innovation and quality through technological leadership.

HEYI ENERGY proudly provides OEM and ODM solutions to 100+ global partners, enabling customized energy solutions across a wide range of applications. Our product portfolio includes:

• Residential energy storage systems

• Commercial and industrial energy storage solutions

• Power batteries for various vehicles and industrial machinery

• Ultra-low temperature batteries for extreme environments

Our core technical team possesses extensive expertise in battery system design, battery management systems (BMS), operational control, and rigorous cell and module testing. From the initial concept to the final product, we ensure system compatibility, stability, and long-term reliability.

At HEYI ENERGY, our mission is to provide sustainable, cost-effective power solutions that not only meet the evolving needs of our customers but also contribute to a greener, low-carbon future.

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.