As energy storage systems continue to expand across residential, commercial, and industrial markets, the demand for reliable lithium battery casings is growing just as quickly. While battery cells often receive the most attention, the enclosure itself plays an equally important role in protecting the battery, simplifying installation, and ensuring long-term performance.
We're excited to introduce our latest custom SPCC steel lithium battery casing, designed for battery pack manufacturers, ESS integrators, and OEM equipment suppliers. Built with precision sheet metal fabrication and fully customizable to customer drawings, this enclosure offers a practical solution for projects where durability, safety, and manufacturing consistency matter.
Why SPCC Is a Reliable Lithium Battery Casing Material
Selecting the right lithium battery casing material is one of the first decisions engineers make during product development.
For many energy storage applications, SPCC cold-rolled steel offers an excellent balance of strength, manufacturability, and cost. Its smooth surface is well suited for powder coating, while its dimensional stability makes it ideal for precision laser cutting, CNC bending, and welding.
Compared with lightweight materials, SPCC steel provides greater structural rigidity and excellent electromagnetic shielding, making it a popular choice for larger battery packs, energy storage cabinets, UPS systems, and industrial power equipment.
Designed Around Your Battery Casing Requirements
No two battery projects are exactly alike.
That's why every lithium battery casing design can be customized according to the battery module, BMS layout, cable routing, installation method, and environmental requirements.
Typical customization options include:
- Overall enclosure dimensions
- Steel thickness
- Internal mounting brackets
- Cable entry locations
- Hinged or removable covers
- Locking mechanisms
- Ventilation openings
- Powder coating colors
- IP protection levels
Whether you're building a compact battery module or a large ESS battery cabinet, we can manufacture the enclosure to match your drawings or technical specifications.
Battery Module Specifications
The battery module shown below is one example of the type of lithium battery system this enclosure is designed to accommodate.
Typical specifications include:
| Item | Specification |
|---|---|
| Rated Voltage | 2.8V |
| Rated Capacity | 100Ah |
| Rated Energy | 280Wh |
| Maximum Charging Voltage | 3.6V |
| Standard Charging Current | 50A |
| Maximum Charging Current | 100A |
| Standard Discharge Current | 50A |
| Maximum Discharge Current | 100A |
| Operating Temperature | 0°C to 50°C |
| Storage Temperature | 0°C to 30°C |
| Cycle Life | Approximately 3,500 cycles (0.5C) |
| Protection Rating | IP20 |
| Battery Chemistry | LiFePO₄ |
| Short-Circuit Current | 1350A ±50A (5 seconds) |
These specifications represent a typical lithium battery pack casing application. Internal layouts and enclosure dimensions can be adjusted based on individual project requirements.
Safety Recommendations
Proper battery handling is just as important as enclosure quality.
The following precautions are printed directly on the battery module and should always be followed during transportation, installation, and operation.
- Keep the battery away from fire and water.
- Never short-circuit the positive and negative terminals.
- Do not disassemble, puncture, or modify the battery.
- Always use the recommended charger.
- Do not use damaged or deformed batteries.
- Keep batteries away from children.
- Do not exceed the recommended series or parallel connection limits.
- Store batteries in a cool, dry place when not in use.
Following these recommendations helps maximize battery life while reducing potential safety risks.
Manufacturing Standards & Quality Control
A reliable lithium ion battery casing depends not only on material selection but also on consistent manufacturing standards.
Every enclosure is manufactured according to strict fabrication requirements, including:
- SPCC cold-rolled steel construction
- General dimensional tolerances in accordance with GB/T 1804-m
- Precision laser cutting for accurate profiles and mounting holes
- CNC bending with controlled dimensional consistency
- Full welding inspection to ensure clean, continuous welds without cracks, porosity, undercut, or excessive deformation
- Complete deburring and edge finishing before coating
- Powder coating thickness controlled between 80–120 μm
- Threaded holes and fasteners protected during surface finishing
- Final appearance inspection to ensure clean surfaces free from scratches, dents, oil residue, and burrs
- RoHS-compliant manufacturing process
Every finished enclosure is inspected before shipment to ensure it meets customer drawings and production requirements.
From Sheet Metal to Finished Battery Enclosure
Our production process combines modern sheet metal fabrication equipment with experienced manufacturing personnel to ensure repeatable quality.
The process includes:
- Laser cutting
- CNC bending
- Welding
- Grinding and deburring
- Powder coating
- Final assembly
- Dimensional inspection
- Packaging
This complete workflow allows us to support everything from prototype development to high-volume production while maintaining consistent quality across every project.
Applications
Our custom lithium ion battery casing solutions are widely used in:
- Energy Storage Systems (ESS)
- Battery pack assemblies
- UPS systems
- Solar energy storage
- Telecom backup power
- Industrial automation
- EV charging infrastructure
- Power distribution equipment
As one of the experienced battery enclosure manufacturers, we support both OEM and ODM projects with flexible production capabilities and customized sheet metal fabrication services.
Looking for a Custom Lithium Battery Casing?
Whether you're developing a new battery pack or expanding an existing energy storage project, choosing the right enclosure can make a significant difference in product reliability and manufacturing efficiency.
At Hofengfab, we manufacture custom lithium battery casings, battery enclosure boxes, and precision sheet metal components based on customer drawings or application requirements. From prototype samples to mass production, our team is ready to help bring your project into production with dependable quality and responsive engineering support.
If you'd like to discuss your next battery enclosure project, feel free to contact us. We'd be happy to review your drawings and recommend a manufacturing solution that fits your application.
CONTACT WITH US : mia@hofengfab.com