Lithium Ion Battery Manufacturer In China

√ 13+ Years Lithium Ion Battery Factory
√ OEM/ODM/OBM & Customized Battery
√ 12V 24V 36V 48V 60V 72V 96V Lithium Battery

Inquiry Now
Download Pdf

Lowest Cost

Strong R&D




About Delong Energy

Your Professional Lithium Battery Manufacturer in China

Delong is a well-known lithium battery manufacturer with 13 years of production experience since 2011. We manufacture and support customized solutions for ternary lithium batteries, lithium iron phosphate batteries, energy storage batteries, power batteries, portable power station, and sodium-ion batteries.
Our lithium battery factory is ISO-certified, covering an area of 6,000 square meters. Our products are certified to international standards such as CE, UL, KC, PSE, MSDS, and UN38.3. Delong is able to offer high-quality batteries at competitive prices, ensuring your projects are up and running quickly.

Send Your Inquiry Now
Delong Energy Factory
Delong Energy Factory
One Stop Custom

Lithium Battery Solutions Provider

Delong Energy focuses on customizing lithium batteries with a professional R&D team. We provide personalized battery customization solutions to meet your needs, including battery cells, casings, smart BMS, Bluetooth monitoring, RS485, and CAN communication functions. Customized batteries through the following process:

  • Communicate and finalize all battery specifications;

  • Review and confirm drawing designs;

  • Mass production of batteries according to final plan;

  • Choose the shipping method that works best for you.

Custom Your Battery Now

12V /24V /36V /48V… /512V Lifepo4 Battery From Delong

Power Bank Portable

Custom Lithium Golf Cart Battery From 12V, 24V, 36V, 48V, 72V

Learn More
Lithium Ion Battery

12V, 24V, 36V, 48V, 60V, 72V, 96V Lithium Battery OEM/ODM

Learn More
Wall Mounted Energy Storage

LV / HV Stackable, RackMount, Wall Mounted, All In One Solar Battery

Learn More

Energy Storage System For Residential, Commercial, Industrial


48V / 51.2V Wall Mounted Solar Battery Storage

Learn More
48V Wall Mounted Lithium Battery


LV / HV Movable Lifepo4 Battery 5kwh to 60kwh

Learn More

All In One

Lifepo4 Battery With Inverter, Plug n Play

Learn More
5kwh All In One Energy Storage System


Uninterruptible Power Supply (UPS) 48V/51.2V

Learn More

Our Adavantages

Why They Choose Delong Energy

Certifications Guarantee The Battery Quality

Delong Energy strictly controls the production process, ensuring the battery is stable and reliable. All the batteries meet international safety standard certifications, including CB, KC, PSE, CE, IEC, ISO, MSDS, and UN38.3 approvals.

Lithium Battery Certification
Send Your Inquiry Now

Successful Energy Projects All Over The World


Customized Battery for Different Industries

Household Energy Storage System

Lithium RV Battery
Lithium Marine Batteries

Lithium Marine Battery

Lithium Tolling Motor Battery
Lithium Golf Cart Batteries
Lithium lon Battery For Bike
Send Your Inquiry Now

Listen To What Our Customers Say

DELONGTOP really a reliable supplier. I like their products and good services! Fast response, professional technical support and patient after-sale service.
The sales manager Henry works excellent.

B**********t, 20 Sep 2023

The product arrived within the agreed time and complies with the description. I reserve the right to expand the review as soon as I can install the batteries.


l**********i, 26 Jun 2023

Qualité de fabrication au top. Attention toutefois à l’intégration de l’écran qui n’est pas droit.

s**************e, 19 Sep 2023

Thanks to your patience and that of a good broker like Susan Yang, I can say that the company is very much alive and active. Thank you for your work , great work , everything is going very well . I was accompanied by good advice and excellent skills.Thanks again.

c***********e, 28 Aug 2023

We purchased a solar system from DELONG Energy , comprising a 10kwh and 5kwh, 51.2v lithium battery pack. The sales contact, SUSAN was incredible, extremely responsive, patient, and knowledgeable. She was super fast in responding to our many, many queries. The delivery was right on the nose, and everything arrived well packed and in pristine shape. I rate the transaction an overall A, and the service an even higher A+.

E**********l, 25 Jun 2023

The Delong hybrid solar system is the most convenient and cost-efficient system I encountered in my search for the best hybrid solar system. The total system was very useful and easy to operate with so many useful features in plotting my desired setup. But most of all, I commend Miss Susan yang for being such a nice and very accommodating agent. All my doubts and worries were gone, from the product selections, billings, and freight forwarding were all organized by her.

s***************e, 15 Dec 2022

I am very happy with the quality. everything works as it should and communicates perfectly with my Deye Inverter. the shipping was a bit delayed, but it was still ok. Mary is a super friendly and helpful seller. she was always able to help me quickly and answer all my questions. Will order more goods.

V************h, 13 Feb 2023

qualità superiore, veramente soddisfatto. e concepito molto bene il pacco batterie, ho intenzione di aggiungere fino a 50 kV. grazie

I***************u, 01 May 2023

batteries reçues en plus de 2 mois bon contact avec le vendeur. tout fonctionne bien. je suis content de la qualité. à voir dans le temps.

A*************R, 01 Jul 2023

ordered a sample of the product, impressive performance. hope to order in bulk soon

H***********e, 04 Jun 2021

Get The Best Quote For Your Next Projects

Need Some Help? Fill Out The Form Below And Our Staff Will Be In Touch!