Battery Box Ultra 400 is Blue Diamond Machinery’s mid-range mobile BESS, engineered in Australia for construction and civil worksites demanding serious hybrid power output. Delivering 405 kW of continuous power with advanced blade-cell LFP architecture and rapid 1C recharge in just over an hour, the Ultra 400 is the workhorse solution for sites where reliability, safety and efficiency are non-negotiable.
Key Features
| Battery chemistry: | LiFePO4 Blade-Cell (safe, long-life) |
| Power Architecture: | Simultaneous charge & discharge capability |
| Fire Safety: | Blade-cell + dual aerosol suppression |
| Thermal Management: | Liquid cooling + forced convection |
| Construction: | Compact skid-mount, IP55+ rated |
| Telemetry: | ONE platform integration + Overwatch 24/7 support |
Specifications
| Rated output power | 405 kW |
| Energy Capacity (DC) | 440 kWh |
| Charge Power | 405 kW |
| Charge Time @1C | 1.09 hours |
| Normal Battery Voltage | 832 V |
| Dimensions | 3,000 × 2,300 × 2,400 mm |
| Weight | 9,400kg |
Mid Range Power, Maximum Reliability
The Battery Box Ultra 400 is an intelligent, high-output hybrid energy solution designed to tackle the demanding power needs of construction and civil operations — without sacrificing safety or efficiency.
Its advanced hybrid operation reduces generator runtime by up to 85–90%, cutting fuel costs and emissions across even the most demanding sites. Engineered and supported in Australia, the Ultra 400 is built to perform in the harshest conditions.
Includes access to ONE Intelligent Energy Platform
ONE Intelligent Energy™ is Blue Diamond Machinery’s proprietary remote monitoring and control platform, purpose-built to maximise the performance, efficiency and reliability of your Battery Box Ultra 200.
Fully integrated into every Ultra 200 unit, ONE delivers complete site visibility and real-time hybrid control — keeping your operation running at peak efficiency while our Overwatch team monitors your system around the clock.