13yrs+
Manufacturer
6000+
Square Meters
120+
Countries
550K+
Customers
100%
Safe & Reliable
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 semi solid state 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.
12V /24V /36V /48V… /512V Lifepo4 Battery From Delong
Energy Storage System For Residential, Commercial, Industrial
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.
Application
Customized Battery for Different Industries
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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