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

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Lowest Cost

Strong R&D

OEM / ODM

No MOQ

Warranty

About Delong Energy

Professional Lithium Battery Manufacturer in China

Delong Energy is a lithium battery factory with 11 years of production experience. We can customize various parameters of energy storage batteries (Powerwall, Rackmount, All in one, Stackable battery, etc.), power batteries (lithium RV battery, lithium car battery, lithium golf cart battery, lithium marine battery, etc.), and consumer batteries (mobile battery, laptop battery, RC car battery, etc.).

If you are looking for a lithium ion battery manufacturer for OEM/ODM, please contact Delong Energy. We have a professional R&D team that meets a series of international certifications.

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OUR Adavantages

Why They Choose Delong Energy

As Supplier

Factory Over 13+ Years

Since 2012, we have been committed to lithium batteries’ research, development, and production.

Customized Services

Provide a one-stop solution for lithium batteries and OEM/ODM/OBM services.

Certifications

CB, KC, PSE, CE, IEC, ISO, MSDS, UN38.3 approvals.

A+ Battery Cells

All batteries are Grade A cells, 100% brand new and original.

10 Years Warranty

Provide free repair or replacement after sale.

NO MOQ

Make your project more flexible and avoid unnecessary losses.

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.

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Delong Energy Factory Production

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Part of BESS Successful Cases

Powerwall In Germany
Powerwall In Germany
10kwh 48V Stackable and Wall Mounted Battery in Italy 14-1
Stackable and Wall Mounted Battery in Italy
Stackable battery in France 06-1
Stackable Battery in France
Stackable battery in Germany 03
Stackable Battery in Germany
Stackable Battery in Germany 04
Stackable Battery in Germany
Stackable battery in Germany 09
Stackable Battery in Germany
Stackable battery in Sweden
Stackable battery in Sweden
Wall Mounted Battery in Czech 12
Wall Mounted Battery in Czech
Wall Mounted Lifepo4 Battery In France 16-1
Wall Mounted Lifepo4 Battery In France
Wall Mounted Lifepo4 Battery Sri Lanka 15-1
Wall Mounted Lifepo4 Battery Sri Lanka

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.

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Application

Customized Battery for Different Industries

Household Energy Storage System

Lithium RV Battery

Lithium Marine Battery

Lithium Trolling Motor Battery

Lithium Golf Cart Battery

Lithium Ion Battery For Bike

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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.

Thanks

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