48v Diy Lithium Battery Box 304ah 280ah Lifepo4 Battery Box Diy Jk Bms
48v Diy Box Case 304ah 280ah Battery Box Lifepo4 Jk Bms
Build Your Own 15kWh Energy Storage System – Cost-Effective DIY Battery Kit with BMS
This DIY battery kit is an ideal solution for users looking to build a reliable and high-capacity 15kWh home energy storage system. It includes all essential components—such as a high-quality Battery Management System (BMS)—with only the battery cells left to be added. We offer brand new Grade A lithium battery cells upon request to complete your setup.
Compared to factory-assembled units, this kit offers significant cost savings without compromising on performance. It’s designed for flexibility, allowing for easy battery cell replacement—something not typically possible with sealed, pre-built systems. The included BMS is highly reliable and on par with those used in many commercial battery storage units.
Perfect for solar energy storage, off-grid setups, or backup power systems, this kit gives you the freedom to build a powerful solution tailored to your specific needs—at a fraction of the price.


What's in the kit?
1 * Battery Case (Bottom case, Front Panel, Top Bracket, Front Bracket, Top cover)
1 * 48V 200A 16S BMS
1 * 58V 400A Fuse
4 * Handle
2 * PCB Board for BMS and Cell Connection
3 * Upper and Lower Latch lock
1 * LCD Screen
1 * LCD Screen Sticker
4 * Button Cap
3 * Wires (LCD Screen wire, PCB board A and PCB board Connector)
2 * Battery Terminals (P+ Terminal and P- Terminal)
Other components includes
6 * Copper bus bars (BMS connection)
15 * Aluminum bus bars (Cell connection)
10 * Epoxy sheet (Between cell and the case)
26 * EVA Tape (Between cells)
1 * PC sheet (Top cover)
Screws Details:
12 * Phillip Hex M4 * 8mm (PCB board fix)
9 * Phillip Hex M5 * 8mm + Washer + Spring Set(Ground cable and top bracket fix)
7 * Phillip Hex M6 * 25mm + Washer + Spring Set(Front Panel fix)
10 * Phillip Round M3 * 8mm + Washer + Spring Set(BMS and LCD Screen fix)
12 * Phillip Pan M5 * 10mm (Latch fix)
16 * Hexagan Socket Pan M4 * 10mm (P+/P- Terminals fix)
42 * Hexagan Socket Countersunk M4 * 10mm (Handle and battery case)
4 * Phillip Hex M6 * 14mm + Washer + Spring Set(foot fix)
5 * Phillip Hex M8 * 10mm + Washer + Spring Set (P+/P- Bus bar fix)
8 * Phillip Round M5 * 10mm + Washer
Selection Guide
| Model | 51.2V/48V A - 280Ah/300Ah | 51.2V/48V B - 280Ah/300Ah | 51.2V/48V C - 280Ah/300Ah | 25.6V/24V A - 280Ah/300Ah | 25.6V/24V B - 280Ah/300Ah |
| Capacity | 15Kwh | 15Kwh | 15Kwh | 7.5Kwh | 7.5Kwh |
| Cell Arrangement | 1P16S | 1P16S | 1P16S | 1P8S | 1P8S |
| Display | 4.3 inch | 4.3 inch | LCD | LCD | 4.3 inch |
| BMS | JK 200A | JK 200A | JBD 200A | JBD 100A | JK 100A |
| Communication | RS485 & CAN | RS485 & CAN | RS485 & CAN | RS485 & CAN | RS485 & CAN |
| Case Dimensions | 440mm * 260mm * 772mm (L * W * H) | 440mm * 750mm * 250mm (L * W * H) | 415mm * 270mm * 797mm (L * W * H) | 415mm * 270mm * 448mm (L * W * H) | 440mm * 448mm * 250mm (L * W * H) |
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