Custom Lithium Battery Manufacturer

Focus On Providing One-Stop Custom Battery Packs Solutions Over 13 Years

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Delong Custom Lithium Ion Battery Pack

Durable, safe, efficient, long-lasting, compatible, easy to use, and environmentally friendly—these are the standards we aim to meet when customizing lithium batteries. We can turn your ideas and innovations into practical solutions.

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Supply Custom Battery Solution From Indoor To Outdoor

Custom Ternary Lithium Battery

Customize ternary lithium batteries for consumer electronics such as 3C products, Bluetooth earphones, electric devices, electric wheelchairs, electric sprayers, and electric toys.

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Custom Lithium & Lifepo4 Battery

Lithium & LiFePO4 batteries have a lifespan of up to 12 years, making them a reliable energy source for deep cycle applications. Customization options include voltage, capacity, BMS, functionality, and appearance.

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Custom Power Battery

Lithium power batteries are compact and lightweight, yet they offer a long runtime, providing ample power for your AGVs, forklifts, RVs, golf carts, tricycles, motorcycles, and other vehicles.

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Custom Household Energy Storage System

With 6,500 charge-discharge cycles, strong compatibility, scalability, and ease of operation, this is a reliable home solar energy storage system.

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Industrial And Commercial Energy Storage System

Scalable rack-mounted storage batteries help you save costs, improve energy efficiency, and enhance grid stability and reliability

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Benefits Of Delong lithium Battery Packs

Lithium Battery For 48V Golf Cart

Enhancing Performance with Efficient Lithium Batteries

The Delong lithium battery, with 6,500 cycles, is an excellent alternative to lead-acid batteries! It has a high energy density and weighs only a quarter of a lead-acid battery, yet it delivers 200% more energy. Allowing you to fully utilize its capacity with almost no maintenance required, this lithium battery is the king in deep cycle applications such as RVs, trolling motors, home solar systems, UPS, and more.

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Ensuring Safety with High-Performance Battery Technology

To give you greater peace of mind when using Delong lithium batteries, we have equipped them with an intelligent Battery Management System (BMS). The BMS can automatically cut off power in the event of any battery abnormalities, preventing issues such as overcharging, over-discharging, and overheating, thereby ensuring electrical safety.

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Lithium Golf Cart Battery Built In BMS

Battery Certified and Trusted for Quality and Reliability

Delong lithium batteries have passed international quality standard certifications such as CE, UL, KC, PSE, MSDS, and UN38.3. This indicates that our products have undergone rigorous testing in design, production, and usage, and have excellent safety performance. They have obtained market licenses to enter countries such as the United States, United Kingdom, Germany, Italy, the Netherlands, South Korea, and Japan, making them a trustworthy source of green and sustainable energy.

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Our Service For Customized Lithium Battery Packs

As a lithium battery factory that engages in both research and development and manufacturing, Delong supports personalized power solutions. Below are some of our customization services, and if your needs are not listed, please contact us. Delong has a top 5 research and development team in the country, and we will do our utmost to meet your customization requirements.


  • Battery Size

  • Battery Color

  • Battery Logo
  • Battery Package
  • Terminals/Connectors

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  •  LCD Indicator

  • RS485/CAN /WIFI
  • Heated battery

  • Bluetooth Battery

  • Power On-off Switch

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  • Battery Voltage

  • Discharge Current

  • Battery Capacity
  • Power Energy
  • Charge Current
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How Do We Design, Produce, Test and QC in-house

3D Design


Engineers will determine the battery configuration, BMS, and other functional modules based on your needs and applications, ensuring the design meets specific power consumption, capacity, and reliability.

A+ Battery Cells


We have been collaborating with well-known suppliers in the industry for the long term, ensuring that the voltage, capacity, charge-discharge cycle numbers, and other parameters of each battery cell batch meet the project’s requirements.


After the battery sample production is completed, we will send the sample to the customer for testing. Once the test passes, we will proceed to the next step of mass production.


The Delong factory has three advanced production lines, each with state-of-the-art equipment and testing instruments. Workers strictly follow the production process to assemble and test battery packs, ensuring the timely delivery of the battery packs.


Lithium batteries will undergo appearance inspections, voltage tests, charge and discharge performance tests, temperature tests, safety performance tests, environmental adaptability tests, cycle life tests, and tests for specific scenarios and requirements before leaving the factory.


We deeply understand the requirements for transporting lithium batteries, including packaging methods and materials, protective measures, labelling and international regulations. Our products meet international certifications and can be delivered smoothly.

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Custom Examples From Delong Battery

We Make Batteries For Powerful Applications

As a professional customized battery manufacturer, the lithium batteries we design span many industries and have strong support from many large enterprises.

These industries include Household, commercial, industrial, UPS, base transceiver station, communications system, medical devices, security, outdoor power supply, consumer electronics, solar storage, Internet of Things, microgrid, etc.

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Lithium RV Battery


Lithium Marine Batteries


Lithium Tolling Motor Battery

Trolling Motor

Lithium Golf Cart Batteries

Golf Cart

Lithium lon Battery For Bike


Boom Your Business, Start From Delong Battery OEM/ODM Service.

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After-Sale Without Worry

We offer a 10-year genuine warranty to provide after-sale service and technology support.

  • Resending new battery within 1st year if something is wrong with the quality of the product.

  • We provide purchase accessories free within the 2nd~5th year warranty.

  • We provide technology support free within the 6th~10th year warranty.

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