In our quest to provide innovative energy solutions, we are excited to introduce the Seplos Mason 280L DIY LifePo4 battery box case. This cutting-edge product is specifically designed to meet the growing demand for efficient residential energy storage, particularly for solar photovoltaic systems. As a business looking to invest in quality energy storage solutions, we believe the Mason 280L will significantly enhance your offerings.
The Mason 280L DIY battery box is particularly suitable for buyers who want to select their own compatible cells while retaining a pre-engineered enclosure, BMS, wiring, and mounting system.

Unmatched Versatility and Compatibility
One of the standout features of the MASON-280L-DIY-Without Cells is its compatibility with various lithium iron phosphate (LiFePO4) battery cells. This DIY kit supports both 280Ah and 304Ah cells in a 16S1P configuration, making it a versatile choice for different energy needs. With the Seplos BMS 3.0 integrated into the design, you can expect enhanced performance and comprehensive protection for the entire battery pack, ensuring reliability and safety in every application.
Exceptional Technical Specifications
Our MASON-280L-DIY-Without Cells LifePo4 battery box case is not just about functionality; it also boasts impressive technical specifications. The smart 16S 200A Battery Management System (BMS) can handle up to 32 packs in parallel, allowing for scalable energy storage that grows with your business. Its waterproof class of IP20 ensures safe operation in various environments, while the built-in LCD screen provides real-time monitoring of battery status. Weighing in at 35kg and measuring 817*412*267mm, this battery box is designed for both ease of installation and optimal performance.
Comprehensive Package List
When you choose the Seplos Mason 280L battery box for LifePo4, you receive a complete package that includes everything necessary for assembly. From the battery case and BMS to essential components like copper and aluminum bus bars, we make it easy for you to get started.
This complete Seplos battery box package also helps reduce the time required to source individual components for DIY or small-batch energy storage projects. Our detailed instructions and included accessories eliminate guesswork, allowing your team to focus on assembly and integration into your systems.
Tailored Solutions for Your Business Needs
As we aim to build strong partnerships, we invite businesses to consider bulk orders of the Mason 280L. Whether you’re looking to enhance your own product line or provide energy solutions to your clients, our minimum order of just one unit and a supply ability of 1,000 units per month make collaboration straightforward. With a stock time of only 15-20 days, we ensure that you receive your products promptly.
Conclusion: Partner with Seplos for Future Success
In a world increasingly focused on sustainable energy solutions, the Seplos Mason 280L DIY battery box stands out as a reliable choice. By integrating our products into your offerings, you can provide customers with safe, efficient, and scalable energy storage solutions. We look forward to partnering with you to meet the future of energy storage head-on. If you have any questions or would like to discuss wholesale pricing, please don’t hesitate to reach out.
FAQs About the Mason 280L DIY Battery Box
The Mason 280L supports compatible 280Ah and selected 304Ah LiFePO4 prismatic cells in a 16S1P configuration. Cell dimensions, terminal positions, voltage specifications, and BMS compatibility should be confirmed before assembly.
The configuration described in this article is the DIY version without cells. The package includes the enclosure, BMS, busbars, LCD screen, wiring, hardware, and other assembly components, while users can select compatible battery cells separately.
Capacity depends on the installed cell model. A 16-cell LiFePO4 configuration using 280Ah cells provides roughly 14.3kWh of nominal energy, while higher-capacity compatible cells can increase total storage.
Yes. The Seplos BMS 3.0 supports scalable parallel configurations, allowing multiple battery packs to operate together where the inverter, communication settings, wiring, and system design support the required expansion.
Yes. It is designed for LiFePO4 energy storage applications and can be integrated with compatible solar inverters through CAN or RS485 communication, making it suitable for residential and selected commercial solar storage projects.
Buyers should confirm cell type, inverter model, communication protocol, required quantity, branding requirements, assembly preference, and target storage capacity before ordering to ensure the final configuration matches the project.