Lowest Cost
Strong R&D
OEM / ODM
No MOQ
Warranty
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.
Popular Lithium Ion Battery Packs From Delong
OUR Adavantages
Why They Choose Delong Energy
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.
Delong Energy Factory Production
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
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.
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
Qualité de fabrication au top. Attention toutefois à l’intégration de l’écran qui n’est pas droit.
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.
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+.
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.
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.
qualità superiore, veramente soddisfatto. e concepito molto bene il pacco batterie, ho intenzione di aggiungere fino a 50 kV. grazie
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.
ordered a sample of the product, impressive performance. hope to order in bulk soon





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