5kWh Rack battery pack
- Rated Power: 2kW DC
- Energy Capacity: 5kWh
- Discharge Duration: Approx. 2 Hours at Rated Power
- Installation: 2U Rack Module
Rack Mounted Battery
Modular rack battery systems for solar energy storage, home backup and expandable battery projects. Start with a single 5.12kWh module and combine multiple batteries in one rack as your storage needs grow.
What Is a Rack Mounted Battery?
rack mounted battery uses modular lithium batteries installed inside a rack or cabinet, with multiple modules connected through power connections and managed by the BMS before supplying energy through an inverter. A typical rack mount lithium battery uses a 51.2V 100Ah LiFePO4 module with 5.12kWh of energy, CAN/RS485 communication and 2.56kW recommended continuous charge/discharge power. Multiple rack-mounted lithium ion batteries can be combined to create 10.24kWh, 20.48kWh, 30.72kWh and larger storage systems for solar and backup applications.
Our Products
Rack mounted battery
10kWh Rack Mount Battery System
- Rated Power: 5kW DC
- Energy Capacity: 10kWh
- Discharge Duration: Approx. 2 Hours at Rated Power
- Installation: Wall / Floor Rack Cabinet
20kWh Rack Mount Solar Battery System
- Rated Power: 10kW DC
- Energy Capacity: 20kWh
- Discharge Duration: Approx. 2 Hours at Rated Power
- Installation: Floor-Mounted Rack Cabinet, IP55
30kWh Rack energy storage System
- Rated Power: 15kW DC
- Energy Capacity: 30kWh
- Discharge Duration: Approx. 2 Hours at Rated Power
- Installation: Floor-Mounted Battery Rack, IP20
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Inverter pairing
Battery Compatibility
A rack mount lithium battery must match the inverter voltage, communication protocol and charge/discharge limits.
Battery Voltage
51.2V nominal
System Class
48V-class low-voltage battery system
Communication
CAN / RS485
Battery Chemistry
LiFePO4
Inverter Protocol
Must support the battery BMS
Parallel Capacity
Must remain within the supported system architecture
System Sizing
Choose the battery capacity from the load you need to support and the required backup time. Required Energy ≈ Critical Load × Backup Time The published 5.12kWh module uses a recommended 50A charge/discharge current at 51.2V, equal to 2.56kW DC per module. Actual backup time depends on usable battery capacity, inverter efficiency and changing loads.
| Energy Capacity | Battery Modules | Example Load | Nominal Duration |
|---|---|---|---|
| 5.12kWh | 1 | 2.56kW | Approx. 2 Hours |
| 10.24kWh | 2 | 5.12kW | Approx. 2 Hours |
| 20.48kWh | 4 | 10.24kW | Approx. 2 Hours |
| 30.72kWh | 6 | 15.36kW | Approx. 2 Hours |
What's Included in the Rack?
| Component | Function |
|---|---|
| Battery Modules | Store electrical energy |
| BMS | Monitors battery operation and protection |
| Battery Rack / Cabinet | Holds and organizes battery modules |
| CAN / RS485 | Communicates with the inverter |
| Power Connections | Connect battery modules to the DC system |
| Busbar | Combines multiple battery modules |
| DC Circuit Breaker | Provides DC-side isolation and protection where included |
Installation Requirements
Size the full rack, not a single module. One 5.12kWh module is 440 × 620 × 117mm and about 51kg; larger packs scale by module count (see table).
| Configuration | Capacity | Installation |
|---|---|---|
| 1 Module | 5.12kWh | Rack / Bracket |
| 2 Modules | 10.24kWh | Wall / Floor Cabinet |
| 4 Modules | 20.48kWh | Floor Cabinet |
| 6 Modules | 30.72kWh | Floor Rack |
Installation & Protection
The table below lists the installation and protection parameters for the rack-mounted battery models shown on this page.
| Model | IP Rating | Rated Voltage | Drainage / Installation | Fire Protection |
|---|---|---|---|---|
| 5kWh | IP65 | 51.2V DC | Rack-Mounted / Floor-Mounted | Built-in BMS |
| 10kWh | IP21 | 51.2V DC | 19-inch Rack-Mounted / Floor-Mounted | Smart BMS / Breaker / Fuse |
| 20kWh | IP65 | 51.2V DC | Floor-Standing Rack Cabinet | BMS / protection system |
| 30kWh | IP65 Outdoor | 51.2V DC | 19-inch Rack-Mounted | BMS / protection system |
Project Videos
Rack Battery Installation
See battery modules installed inside the rack and connected into a complete energy storage system. Watch Installation →
Battery Module Expansion
See how additional battery modules are added when more energy capacity is required. Watch Expansion →
Wiring & Commissioning
See power wiring, BMS communication and inverter connection before system startup. Watch Commissioning →
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FAQ
What are 51.2v lifepo4 rack mounted batteries?
51.2v lifepo4 rack mounted batteries use modular LFP battery packs installed in a rack or cabinet. A common module configuration provides 51.2V, 100Ah and 5.12kWh, with CAN/RS485 communication and multiple modules combined when more storage capacity is required.
How many rack mounted batteries do I need?
Start with the required energy capacity. Two 5.12kWh modules provide 10.24kWh, four provide 20.48kWh and six provide 30.72kWh. The final module count should also allow for usable SOC, inverter efficiency, backup reserve and future expansion.
Can I add more rack battery modules later?
Yes. Modular rack systems are designed for capacity expansion. The referenced 5.12kWh platform supports up to 16 modules in one group and larger systems through additional system architecture, although the inverter, BMS communication and system design must also support the final battery count.
Can a rack mount solar battery work with my existing solar system?
Yes. A rack mount solar battery can store solar energy and supply it later through a compatible battery inverter or hybrid inverter. Compatibility depends on battery voltage, CAN/RS485 communication, BMS protocol and the inverter's supported battery list.
Is a rack mount battery backup suitable for home backup?
A rack mount battery backup works well when several battery modules are needed for longer backup time or future capacity expansion. A 20.48kWh four-module system, for example, has twice the nominal stored energy of a 10.24kWh two-module system, so runtime increases when the connected load remains the same.
What is the difference between a rack mount system and a rackmount UPS battery?
A rack mounted energy-storage battery stores larger amounts of energy for solar, home backup or other energy-storage applications and normally works with a separate compatible inverter. A rackmount UPS is typically designed for short-duration backup of servers and IT equipment, so the two products should not be selected using the same criteria.
Is the battery rack included?
It depends on the selected configuration. Some products are supplied as individual rack battery modules, while complete rack or cabinet configurations can include the enclosure, integrated busbar and DC circuit breaker. Confirm the exact system scope before ordering