Product Categories
Mobile Energy Storage System
Application Scenarios
Weak power grids or off-grid areas, such as construction sites, highlands, islands, fishing villages, grasslands, and deserts. The diesel-storage system can serve as an independent power supply system, with the diesel generator providing supplementary power.
Adaptable to Impact Load Equipment
FlexCube is compatible with impact load equipment such as water pumps, drilling rigs, lifts, and tower cranes.
Dual Charging Circuits, Simultaneous Charging and Discharging
The dual charging circuit design allows for simultaneous charging and discharging from weak power grids or diesel generators, ensuring stable operation of the microgrid.
Maintenance Bypass Design — No Downtime in Case of Fault
In the event of unexpected situations, it can operate independently without service interruption. No cable removal is required — quick and convenient.
Easy Transport — Ready to Move and Use
The standard 10‑foot container and lightweight design allow for easy transport to different locations for deployment.
Quiet Operation
Peak operating noise is below 75 decibels, suitable for noise-sensitive environments.
Side Cable Outlet — Plug-and‑Play
The cabinet features a side cable outlet design, allowing it to be placed directly on flat ground for use without the need for a prefabricated base.
Multi-Unit Parallel Expansion
Power capacity can be flexibly configured to meet the power demands of various scenarios.
AI Cloud Platform for Intelligent Management
Remote management and maintenance, real-time data updates, and AI-powered intelligent analysis for efficient management.




| Model | FlexCube-250P | FlexCube-250L | FlexCube-500L |
|---|---|---|---|
| System Capacity | 250kW/161kWh | 250 kW / 261 kWh (321 kWh optional) | 500 kW / 402 kWh (422/482 kWh optional) |
| System Wiring | Three-phase four-wire + PE | ||
| Grid-Connected Operation Mode | |||
| Rated Output Power (kVA) | 250 | 250 | 500 |
| Rated Output Current (A) | 361 | 361 | 722 |
| Allowed Grid Voltage (Vac) | 400 (-15%~15%) | ||
| Isolation Method | Power Frequency Isolation | ||
| Allowed Grid Frequency (Hz) | 50±5/60±5 | ||
| Total Current Harmonic Distortion Rate | ≤ 3% | ||
| Voltage Ripple Factor | ≤ 1% | ||
| Power Factor | 0.99/~1~1 | 0.99/~1~1 | 0.99/~1~1 |
| Rated Input Power (kVA) | 250 | 500 | 500 |
| Rated Input Current (A) | 361 | 722 | 722 |
| Number of Grid-Connected Units | Diesel generator does not support paralleling, Grid allows 4 units in parallel | ||
| Off-Grid Mode | |||
| Rated Output Voltage (Vac) | 400 | ||
| Output Voltage Distortion | ≤ 1% (linear load) | ||
| Rated Output Frequency (Hz) | 50/60 | ||
| Grid/Off-Grid Switching Device | Present | ||
| Number of Off-Grid Units | 4 | ||
| Interaction Method | |||
| Remote | Cloud platform | ||
| Local | Touch screen | ||
| Battery Parameters | |||
| Battery Type | Lithium Iron Phosphate (LFP) Battery | ||
| System Nominal Voltage (V) | 512 | 832 | 704 |
| Operating Voltage Range (V) | 464~576 | 728~936 | 616~792 |
| Total Battery System Capacity (kWh) | 161 | 261 (321 optional) | 422 |
| Operating Temperature Range | Charging: 0°C to 45°C Discharging: -20°C to 45°C | ||
| Matching Diesel Generator/Grid Parameters—Slow Charging Port | |||
| Wiring Method | Three-phase three-wire + PE | ||
| Input Voltage (Vac) | 320~485 | ||
| Input Frequency (Hz) | 45~65 | ||
| Power (kW) | 40 (*) | 40 (*) | 80 (*) |
| Communication Method | RS485 | ||
| Matching Diesel Generator/Grid Parameters—Main Input Port | |||
| Capacity | ≥ 125kW | ≥ 125kW | ≥ 250kW |
| Communication Method | RS485 | ||
| System Parameters | |||
| System Dimensions (W×H×D) (mm) | 1600*2300*2500 | 2500*2000*2591 | 2991*2438*2591 |
| IP Rating | IP54 | ||
| Weight (kg) | 5000 | 9180 | 9460 |
| Allowed Altitude (m) | 2000 | ||
| Communication Interface | Ethernet, RS485, CAN | ||
*Smaller input sources can be used, but this will result in slower charging speeds.
If you have any project requirements, please contact us.
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