Custom Lithium Battery Manufacturer

OEM/ODM lithium battery pack solutions for industrial equipment, mobility, and energy storage. Customize voltage, capacity, enclosure, BMS, and communication interfaces to meet your product requirements.

Technical & OEM Customization Scope

We develop lithium battery packs around your electrical specifications, installation requirements, and target application, from adapting existing designs to developing new battery assemblies.

Electrical Specifications

  • Voltage: 12.8V to 700V+

  • Capacity: 10Ah to 1000Ah+

  • Custom charging and discharging current requirements

  • BMS protection parameters and battery monitoring

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Enclosure & Mechanical

  • Materials: ABS Plastic, Powder-Coated Steel, Aluminum Alloy

  • Form Factors: Drop-in Lead-Acid (Group 24/27/31), Rackmount, Wall-mount, Custom CAD Footprints

  • Ingress Protection: IP65 / IP67 rated options (based on sealing design)

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BMS & Electronics

  • Communication: CANbus and RS485 interfaces, with Modbus integration where required.

  • Integration: BMS protocol configuration and communication testing for the specified inverter or equipment.

  • Options: Bluetooth monitoring, LCD display, heating pads, and custom wiring harnesses.

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Custom Battery Solutions by Application

We support OEMs, equipment manufacturers, distributors, and system integrators sourcing lithium battery packs and energy storage solutions for different applications.

12V Lifepo4 Battery

Deep Cycle Lithium Battery Packs

LiFePO4 battery solutions for applications requiring reliable cycling performance, sustained power delivery, and flexible installation.

  • Applications: RVs, marine auxiliary power, off-grid solar systems, and telecom backup.

  • Customization options: 12V, 24V, and other suitable voltage configurations; capacity, discharge current, enclosure, monitoring, and active balancing options.

Movable Lithium Battery Storage

Residential Energy Storage Batteries

Wall-mounted and stackable LiFePO4 battery modules for residential solar storage, customized to your local market requirements.

  • Applications: Home solar energy storage, residential backup power, and off-grid homes.

  • Customization options: Battery voltage (51.2V / High Voltage), modular capacity scaling, front-panel branding/casing design, pre-configured inverter BMS communication firmware, and custom installation mounting kits.

Commercial & Industrial ESS

High-voltage battery systems and integrated energy storage cabinets engineered for commercial and industrial scale applications.

  • Applications: Factories, commercial PV installations, microgrids, and peak-shaving projects.

  • Integration Scope: High-voltage battery rack assembly (280Ah/314Ah prismatic cells), high-voltage control box (HVBOX) & BMS integration, HVAC thermal management layout, custom cabinet enclosures, and EMS communication protocol matching.

Lithium Motive Power Battery

Motive & Traction Power Packs

Custom lithium battery packs for electric mobility and industrial equipment, designed around application-specific voltage, discharge current, dimensions, and installation requirements.

  • Applications: Golf carts, low-speed electric vehicles, AGVs, electric forklifts, floor sweepers, and trolling motors.

  • Customization options: Battery dimensions, BMS settings, discharge performance, wiring harnesses, connectors, and enclosure design.

5000wh Solar Portable Power Station 15kwh

Portable Power Stations

Integrated LiFePO4 battery, BMS, pure sine wave inverter, and charging system built to your brand specifications.

  • Applications: Remote field operations, emergency backup, off-grid power supply, and outdoor activities.

  • Customization options: Brand private labeling, custom enclosure tooling and colorways, regional AC socket configurations (US/EU/UK/Universal), battery capacity sizing, and custom display/app interfaces.

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.

OEM/ODM Battery Development Process

From initial requirements to production, we work with customers to define the battery design, validate key specifications, and prepare the product for manufacturing.

Requirements Review

Confirm the application, target voltage and capacity, operating current, installation space, environmental conditions, communication requirements, and estimated order quantity.

Engineering Design

Evaluate cell selection, BMS configuration, enclosure structure, electrical connections, and communication interfaces. Mechanical drawings and 3D models are developed where required.

Prototype & Validation

Build functional prototypes according to the agreed design and conduct applicable electrical, protection, communication, and environmental tests based on project requirements.

Production & Delivery

Confirm the final specifications, quality inspection requirements, packaging, and shipping arrangements before proceeding with production and delivery.

Prototype development typically takes 7–14 business days for suitable projects after requirements and design details are confirmed. Projects involving new tooling or complex firmware may require additional time.

Battery Manufacturing Quality Control

Battery designs undergo electrical, thermal, and mechanical validation based on project requirements. Each finished pack is checked against the agreed specifications before shipment.

A+ Battery Cells

Cells

100% capacity and internal resistance grading before assembly to prevent cell imbalance, extending battery lifespan.

Automated Laser Welding

Precision laser welding creates consistent cell connections with low electrical resistance and reliable mechanical strength.

Full-Load Cycle Aging

Every finished battery pack undergoes a 24-hour charge/discharge test and BMS safety check before shipment, minimizing field failure risks and lowering your overall warranty costs.

Certifications & Regulatory Compliance

Our manufacturing quality management system is ISO9001 certified. Product compliance and shipping documentation are confirmed for the selected battery model and target market.

Product Compliance: CE, IEC 62619, UL, PSE, KC, RCM, and other region-specific certifications available upon project request. 

Transport documentation: UN38.3 test summaries and safety data sheets (SDS/MSDS).

Custom Examples From Delong Battery

Stackable Battery in Sweden
Powerwall In Germany
Stackable Battery in Germany
10kwh 48V Stackable and Wall Mounted Battery in Italy
Stackable Battery in France
Stackable Battery in Germany
Wall Mounted Battery in Czech
Stackable Battery in Germany
Wall Mounted Lifepo4 Battery In Sri Lanka

After-Sales & Technical Support

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.

Frequently Asked Questions

Sample orders may start from one unit for engineering evaluation, depending on the product and component availability. Mass production MOQ depends on the battery design, customization requirements, and sourcing conditions.

Yes. We support BMS communication configuration and compatibility validation for specified inverter models from Deye, Victron, Growatt, GoodWe, Sofar, and other supported brands. Share your inverter model so our technical team can confirm the protocol and battery configuration required.

Prototype development generally takes 7 to 14 business days, depending on enclosure tooling and BMS firmware customization.

Request an Engineering Proposal & Quote 

Share your application, battery specifications, installation dimensions, and estimated order quantity. Our team will respond within 12 hours to review your requirements and confirm the next steps for a design proposal and quotation.

🔒 100% Confidentiality | Non-Disclosure Agreement (NDA) Available | Direct Factory Pricing